Harley Evo Performance Heads


Branch was the only independent company to ever supply Harley Davidson ported and polished heads for the assembly line in Milwaukee and to this day we. New Raptor Side Exit High Performance System. We've had numerous customers break 100rwhp using this level of head prep on their Twin Cam. The end result is a set of heads that are better-than-new. Satisfaction Guaranteed. Twin Cam engines have the same intake valve as an Evolution engine, yet the exhaust valve on the Twin Cam is smaller than the Evos, and the Twin Cam is 88 cubic inch. Axleback Performance mufflers for Ford GT500 Mustang. Big Sound Big Performance Big Attitude. Heads come complete and assembled with high quality components that include titanium retainers and 7° valve locks. Founded in 2006, Gaterman Products/Gaterman HD Lifters® has over 40 years of experience in the design and manufacturing of high performance hydraulic roller lifters for motorcycle applications. The quality in design and effectiveness in keeping oil temperatures low are unsurpassed. 900 intake valve and a 1. 850" intake/1. Harley and Buell owners are typically Harley/Buell owners because the bikes offer a great, quality platform that anyone can start with and make it their own. Manufacturer of high performance cylinder heads and manifolds for ford and chevy. 898" intake valves and 1. Twin Cam engines have the same intake valve as an Evolution engine, yet the exhaust valve on the Twin Cam is smaller than the Evos, and the Twin Cam is 88 cubic inch. Voodoo Hydraulic Roller Cam - Harley Davidson Big Twin Evolution Cam 285/285. We design, service, and manufacture big bore engines, and we are dedicated to fulfilling the demand for long life, large cubic inch “Big Block” motorcycle engines. 55 to 65 HP Up to $750 Stage One Evolution Harley-Davidson engines involve no internal changes made to the. Description. 95 Model # 15-913 : MIKUNI SPIGOT ADAPTER, 36-38mm. High Performance Specialist for your Harley-Davidson® Motorcycles We offer MORE bottom-end horsepower and torque for your Harley-Davidson ® than anyone in the world! Get Current Price List via eMail. FREE shipping on orders over $150 within the continental U. Now S&S heads are available to be used with stock-style flat-top pistons. Head Hoggers is the market leader in Harley Horsepower, Engine Kits, Engine Rebuilds and Engine Modifications. We are located in Tempe, Arizona, and have a summer facility in Montana. Got a Harley EVO to ride? Well, that's one impressive bike anyone can ever imagine buying. Many hours of research and development have gone into designing these upgrades using the most reliable parts available, combined with expert workmanship. Evolution Cylinder Heads Evolution - Pro Street - $1000. Axtell and Dytch have had a large presence at Bonneville from the Cal Rayborn piloted streamliner to Aaron Wilson using our aluminum street cylinder to break 200 m. Ø Over 40 years of experience in the Harley Davidson field! Ø Lead Instructor in the DynoJet Program at MMI for 5 years. I started in house dynamometer testing in 1986 and cylinder head. The re-designed combustion chamber, optimized for flow and efficiency, works with stock or Hi-Compression Forged Piston Kits. I appears they cut too much into the Aluminum if. The APR may vary based on the applicant's past credit performance. My name's Alex and I've been around bikes for 39 years 19 of which have been spent riding and maintaining Harleys. The stock valve seats are 1. The newly designed Harley-Davidson Evo engine relied on aluminum heads and cylinders - as opposed to the heavy cast iron parts of the Shovelhead (their previous Big Twin bike V-Twin engine) and other predecessors, such as the Sportsters' Ironhead engine, led to a light weight engine with improved air-cooling efficiency. Merch Motors is committed to selling the finest quality performance and aftermarket parts for Harley-Davidson® style motorcycles. In 1952, the predecessors to the Sportster, the Model K Sport and Sport Solo motorcycles, were introduced. It's true the EVO engine will not hold up to hot rodding (I know a Harley/Harley clone mechanic, and watched him rebuild an 80" EVO) But I don't understand this thing about power with a Harley. 75 + shipping + shipping + shipping. We have experienced Harley-Davidson remanufactured engines, JIMS machine remanufactured transmissions and upgrades, and now something new for an Evo rebuild. For the engine builder, consider our custom long block kits. With such. 623" exhaust valves. - S&S Cycle Black Super Stock Cylinder Heads for Harley Evolution Big Twin EVO. The page buttons at left will guide you through all the parts and or services we currently offer. Harley Evo vs Twin Cam Engines Overall. Harley Davidson Precision Engine Rebuilding: As we are well known and respected for our "Hot-Shot" Hi-Performance Engines and Performance Packages many are unaware of our abilities in rebuilding your T/C, EVO or Shovel/Pan Head engine to original condition or installing a performance package as it is being rebuilt. Harley EVO. S&S Cases. 800-969-7501. 650 intake port opening. of torque, revving faster than you can see! This is not only for your father’s touring bike—this is a rip-it-up, blast-around-town, Saturday-night-in-the-city kind of performance package. Sportster models are designated in Harley-Davidson's product code by beginning with "XL". 04 shipping estimate. You'll often find an older Harley-Davidson Evo's for sale with the 1340 Evolution engine, but is it still a great option in today's motorcycle world? We'll t. Heads come up with larger than stock 1. Axleback Performance mufflers for Ford GT500 Mustang. Bikeman Performance is a top performance parts company. When you're ready to step up to a fully ported set of heads for your Evo Big Twin, trust your heads to the pros at NRHS. We design, service, and manufacture big bore engines, and we are dedicated to fulfilling the demand for long life, large cubic inch "Big Block" motorcycle engines. And in 1984, they did just that with the release of the Harley Evolution engine. view more contact us T-Man performance Agility and Performance We strike a strong balance between incredible custom performance and Award winning reliability. View Details. If you've experienced the Stage 1 power. The hemi combustion chamber and center location of the spark plug as well as less spark advance allow compression to increase from the stock 9:1 to over 11:1. 95 (Labor Only) Revolution Performance can build (or rebuild) your complete engine. To save the company once again, Harley-Davidson needed to evolve. Welcome To R&R Cycles Inc. Dave Mackie Engineering headwork was a key component in Bob "Rat" Taft's Harley-Davidson powered motorcycle when it became the world's "First 8-Second. Performer heads are street legal in 50 States. The main difference between the two engines, beyond displacement issues, is the 132/139 EVO ORCAS are full eight bolt heads with base studs whereas the 113 EVO ORCAS are standard four bolt stud designs. Street Performance Exhaust System P/N 64800022. The engine ain't dead by any means, and is considered by many to be the best motor Harley Davidson ever made. Finally, the heads go on the flow bench to ensure that the front and rear-head flow numbers are correct and balanced for maximum power and ease of tuning. Repair Broken Fins. Designed for high performance 1200cc Evolution® Sportsters® operating at 6000+ rpm, these heads offer superior flow for max power. Find many great new & used options and get the best deals for Harley PERFORMANCE EVO HEADS S&S "Super Stock" HIGH PERFORMANCE Heads & Pistons at the best online prices at eBay! Free shipping for many products!. Big Sound Big Performance Big Attitude. 00 Perfect Seal Piston Ring set - Cost $50. You want power, get a Hayabusa. Motorbike HD Synth 20W-50 Street: a synthetic engine oil developed for year-round use in Harley Davidson V-Twin engines. 850" intake/1. 838 Intake and 1. New Raptor Side Exit High Performance System. of torque, revving faster than you can see! This is not only for your father’s touring bike—this is a rip-it-up, blast-around-town, Saturday-night-in-the-city kind of performance package. Each manufacturer includes upgrades to the original design which improve both performance and reliability. Ductile iron Step-Lock guides are fitted and topped off with high quality Viton® seals and a performance spring kit. We build show winning custom motorcycles and championship winning racers. S&S Cycle Super Stock Cylinder Head for Twin Cam - 106-3233. ===== DIY Harley Engine Stand. Intake manifolds, camshaft kits, cylinder heads and carburetors are the core of the Power Package. Finally, the heads go on the flow bench to ensure that the front and rear-head flow numbers are correct and balanced for maximum power and ease of tuning. We ship Worldwide! We guarantee our product will fit on your vehicle our we pay return shipping. EVO Engines 85-99 Part # 3069 $ 199. Please use the buttons at left to navigate through your options. Voodoo Hydraulic Roller Cam - Harley Davidson Big Twin Evolution Cam 285/285. New Systems for the 2018-'19 Mustang GT are available. Enter keyword or part #. Merch Motors is committed to selling the finest quality performance and aftermarket parts for Harley-Davidson® style motorcycles. It was made in the 1,340 cc (82 cu in) displacement for Harley-Davidson Big V-twins bikes, replacing the Shovelhead engine until 2000 when the last EVO was placed in a production factory custom FXR4 (FXR2 and FXR3 were the first CVOs). Fits 1984-1999 Harley Models with Evolution Big Twin Engine. Founded in 2002, Gaterman Products LLC has over 40 years of experience in the design and manufacturing of high performance hydraulic roller lifters for automotive, marine, and motorcycle applications. Sportster models are designated in Harley-Davidson's product code by beginning with "XL". Sep 06, 2021 · I came accross these two Evolution Heaads. Completely American-made and cast from '356' aircraft-quality aluminum heat-treated to T6' and then machined and assembled by some of the biggest names in the industry. The only people who diss Harleys are the ones that don't have one…. Head modifications and machining Head Services (Stock rebuilding to complete Pro Race heads) Stock (Rebuild to factory specifications); SuperStock (Focused on adding low-end and mid-range torque); ProStreet (Focused on mid-range to upper RPM HP); Hybrid (Raised intake ports, maximum effort applied for power and torque); We perform head rebuilds and modifications on the following engine types:. Delkron, S&S Cycle, T-Man Performance, and R&R Cycle all have purpose designed heads for the twin cam with S&S providing EVO, EVO Sportster Shovelhead and Panhead replacements. A familiar V-Twin cadence is the beating heart and soul of every Harley-Davidson motorcycle, but when that high-mileage heart begins to skip a beat the new Harley-Davidson® LongBlock Program can. You want power, get a Hayabusa. (2) S&S Cycle Cylinder Heads for Stock Bore Shovelhead Cylinders - 90-1498. We build show winning custom motorcycles and championship winning racers. SKU: 43-HF1-70. Time proven. Special Price $405. Reshape Combustion Chambers. Revolution Performance's Precision Engine Management System is a fully integrated dynamic tuning control unit. Harley PERFORMANCE EVO HEADS S&S "Super Stock" HIGH PERFORMANCE Heads & Pistons. We use these STD heads on our 80" FXR Turbo. Branch heads and serious horsepower. It was made in the 1,340 cc (82 cu in) displacement for Harley-Davidson Big V-twins bikes, replacing the Shovelhead engine until 2000 when the last EVO was placed in a production factory custom FXR4 (FXR2 and FXR3 were the first CVOs). View Details. Baisley Roller Rocker Conversion. Please check your local EPA authorities for street use. SKU: SS106-3240. A couple years ago Lee spent some time with Joe Mondello, the cylinder head porting legend. - 4-5/8" stroke SE Pro stroker flywheel and rod assembly. 650 intake port opening. Just like Ultima's EVO style engines this engine features high quality components at an affordable price. We've had numerous customers break 100rwhp using this level of head prep on their Twin Cam. This modern retro pays homage to the diggers from. Regular Price: $4,295. Manufactured for closed course competition. With the 883 heads (used on 1200 motors) we can give you more flow, higher port velocity for more torque and a higher compression ratio for more horsepower. Bolt in, mid range to top end power with increased compression. S&S® Performance Replacement cylinder heads for 1986-'99 HD® Evolution® big twin engines are designed to be compatible with a stock style flat topped piston. I bought Speed And Science set of Shovelhead cylinders heads and rocker boxes - some of the best work I've ever seen!!! Very impressed with the Speed And Science Shovel heads and cylinders. It was made in the 1,340 cc (82 cu in) displacement for Harley-Davidson Big V-twins bikes, replacing the Shovelhead engine until 2000 when the last EVO was placed in a production factory custom FXR4 (FXR2 and FXR3 were the first CVOs). Aesthetically Pleasing Design. Since 1963, AMS has offered motorcycle parts and machine shop services, including high performance and racing engines. Use of the word Harley-Davidson®, various model names and designations, and OEM part numbers are provided soley for reference and application information and there is no affiliation between Harley-Davidson®, Inc. 800-969-7501. 80" Evolution Performance Upgrades. Head work starts at $987. ===== DIY Harley Engine Stand. Twin Cam engines have the same intake valve as an Evolution engine, yet the exhaust valve on the Twin Cam is smaller than the Evos, and the Twin Cam is 88 cubic inch. EL Bruto 298-272 Competition Series 127ci Complete Engine 140hp Repl. Custom Harley Panhead Rocker Boxes, 84-99 FXR, All EVO Dressers & 86 Up EVO, Sportster XL &TWIN CAM; PUSH ROD COVERS MOTORCYCLES TWIN CAM , SHOVEL HEAD, EVO; KENS. This head has substantially higher low-lift flows for unreal torque increases and is capable of producing over 90 horsepower in an 80” engine (same head used in our 80/80 kit). NGK spark plug for EVO 1340 and Shovelheads. view more contact us T-Man performance Agility and Performance We strike a strong balance between incredible custom performance and Award winning reliability. Parts for Harley Davidson. Dave Mackie Engineering headwork was a key component in Bob "Rat" Taft's Harley-Davidson powered motorcycle when it became the world's "First 8-Second. Branch O'Keefe EVO Turbo Heads: STD, S&S and OEM. Those beautiful heads sit over a HAMMER PERFORMANCE Bolt-On 1250 Kit with state-of-the-art ultra light 30 degree reverse dome pistons. 1989 harley 883 hugger #1 front cylinder head 2002 HARLEY 883 RIGHT LOWER ENGINE MOTOR MOUNT 1974 harley 1000 seat 1994 Harley 1200 sportstar three wheeler kit 2001 HARLEY 1200 SPORTSTER XL Sprocket cover 2014 HARLEY 1200 SPORTSTER HEADLIGHT 1985 harley 1340 evo fairing windshield and brackets 1989 harley 1340 clutch ass and starter. 2" Sportster LSR 2-1 Pro Stock Challenge. A familiar V-Twin cadence is the beating heart and soul of every Harley-Davidson motorcycle, but when that high-mileage heart begins to skip a beat the new Harley-Davidson® LongBlock Program can. Fits 1984-1999 Harley Models with Evolution Big Twin Engine. The Evolution, also known as the Evo or Blockhead engine, was a complete revamp of the Big Twin. Click on part numbers below each catalog page to add items to your cart - View Cart. That's why the RevTech Engines are engineered to make huge power, early and long. But, Twin Cam would still beat Evo even if they both get developed to meet similar standards. The goal of AMS is to provide the highest quality, best performing products available. Not all applicants will qualify. Since 1963, AMS has offered motorcycle parts and machine shop services, including high performance and racing engines. If you've experienced the Stage 1 power. Whatever your horsepower needs, Delkron offers packages that guarantee strength and durability. Our customer base extends from coast to coast, and crosses international borders, as well. The timing was perfect for everybody. HOME » Evolution Big Bore Kits We offer several bolt-on and monster big bore kit solutions for the evolution engine family. of seat pressure, stainless steel valves,chrome moly retainers, and seals. In dragracing, our cylinders have been the first in the 10's-9's-8's-7's and 6's. The newly designed Harley-Davidson Evo engine relied on aluminum heads and cylinders - as opposed to the heavy cast iron parts of the Shovelhead (their previous Big Twin bike V-Twin engine) and other predecessors, such as the Sportsters' Ironhead engine, led to a light weight engine with improved air-cooling efficiency. DME camshafts are designed using three decades of Dyno testing, racing, touring, street rodding, and research with cams of all major manufacturers. This author recommends discussing. Here is a complete conversion kit that will eliminate those troublesome intake manifold leaks common to Knucklehead and Panheads with worn and distorted "plumber" style manifold components. The end result is a high quality pair of heads that will significantly improve the performance of your motorcycle without costing you a fortune. Dyno Tuning with an emphasis on part throttle tuning, fuel mileage and a clean burn. Zipper's Performance Gift Certificates make a great gift. Hillside Motorcycle & Machine with over 30 years of dedication to building reliable power, we have become the choice of many happy customers. TELE 206•718•5376. Baisley Roller Rocker Conversion. Twin Cam, EVO, EVO XL, Buell and aftermarket heads. We've had numerous customers break 100rwhp using this level of head prep on their Twin Cam. Many hours of research and development have gone into designing these upgrades using the most reliable parts available, combined with expert workmanship. Performer RPM heads are perfect for street performance, daily drivers, street rods and muscle cars where seat-of-the-pants performance is needed. Shovels & Pans are by no means excluded, but they usually require repairs that make pricing impossible without having them in hand. (the timing retard is actually based off a calculated CHT #, and that algorithm derived # is almost always hit when the ET sensor crosses the 245-255* F threshold) This is there. Harley Davidson Twin Cam, Evo Big Twin, Sportster and Buell High Performance Parts and Services 11/7/16: Five-Axis CNC Head Porting at HAMMER PERFORMANCE 8/28/16. Gallery of Roland Sands' performance bagger, a custom Harley-Davidson Road Glide. These are great entry level performance heads for the 2006 - 2016 Twin Cam engines. However, we DO NOT provide support related to VIN numbers. 250", heads, complete engines, and so much more. CNC seat and bowl job. 900 intake valve and a 1. Not all applicants will qualify. 600" cam lift. This is an engine stand I welded up that makes working on motors a whole lot easier. Beginning in the late 80's and into the 90's the major portion of my work had evolved into cylinder head porting and performance modification services, primarily for motorcycle shops, performance manufacturers and racers around the country. Standard bore (or) 3 5/8" bore. MEGAFLO is the business name and trademark for premium quality, professionally crafted, cylinder head modification services for Harley-Davidsons. Bolt in, mid range to top end power with increased compression. Ultima El Bruto Complete Evolution 131" Black Motor Engine Harley Evo Big Twin offering the new "El Bruto®" Series Engines which are designed to provide our customers with a U. The engine ain't dead by any means, and is considered by many to be the best motor Harley Davidson ever made. Cylinder Heads This what a stock EVOLUTION combustion chamber looks like with stock sized valves. It was made in the 1,340 cc (82 cu in) displacement for Harley-Davidson Big V-twins bikes, replacing the Shovelhead engine until 2000 when the last EVO was placed in a production factory custom FXR4 (FXR2 and FXR3 were the first CVOs). The page buttons at left will guide you through all the parts and or services we currently offer. Sep 06, 2021 · I came accross these two Evolution Heaads. The goal of AMS is to provide the highest quality, best performing products available. of torque, revving faster than you can see! This is not only for your father’s touring bike—this is a rip-it-up, blast-around-town, Saturday-night-in-the-city kind of performance package. Keeping with the goal of "always using the best," Hyperformance offers the complete line of R&R Cycle Billet and (coming soon) Cast Long Block Engines. Not yet rated. Upgraded Heads. Call us today for all your Harley performance needs! (256) 735-4520 or (256) 352-4420. Stage 2 Cam it up!: $940. 938", which gives either 98 or 107ci depending on the year of your bike. Obviously, power upgrade options exist for the other engines in the range, but take the time to read through the rest of our site, as this is discussed in massive detail to make sure that you are making the right decision when it comes to all your Harley-Davidson needs. S&S Performance Replacement Cylinder Head Kit for Harley Davidson 1984-99 Evo Big Twin enginesBike Fitment1984-1985 Harley Davidson FLH Electra Glide1994-1999 Harley Davidson FLHR Road King1998-1999 Harley Davidson FLHRCI Road King Classic1996-1997 Harley Davidson FLHRI Road King1988-1993 Harley Davidson FLHS Electra Glide Sport1986-1999 Harley Davidson FLHT Electra Glide Standard1984-1999. Screamin' Eagle®/Öhlins® Remote Reservoir Rear Shocks for Harley-Davidson Touring models were designed for Screamin' Eagle® Factory Team race bikes. 49% APR offer is available on new Harley‑Davidson ® motorcycles to high credit tier customers at ESB and only for up to a 60 month term. 75 + shipping + shipping + shipping. Out of stock. They also use stock Harley-Davidson throttle cable. The following performance upgrades are proven, dyno tested, reliable means of increasing the output of your stock 80ci Evolution powered HD. The Stage one package includes either a Crusher Street Sleeper 3 or S&S Stealth Intake system-Slip on Mufflers-Dynojet power Vision Tuning License and Dyno Tune. This is roughly an additional 3% on top of the standard overbore conversion described below. I prepare cylinder heads for Pan Heads®, Shovelheads®, Iron and Evolution Sportsters®, Evolution Big Twins® and, of course, the newest Twin Cam® motor. EVL 240/240 R104. Harley Evo vs Twin Cam Engines Overall. Stage 1 heads on a 2016 107 CID Twin Cam produce 115HP with mild cams, a stock throttle body, and mild compression. Dyno Tuning with an emphasis on part throttle tuning, fuel mileage and a clean burn. Cases are cast in a permanent mold from. Engine Machining. NRHS has been perfecting the Evolution Big Twin cylinder head since the company was founded. Dave Mackie Engineering headwork was a key component in Bob "Rat" Taft's Harley-Davidson powered motorcycle when it became the world's "First 8-Second. Cometic Gasket supplies hi-performance gaskets for a variety of motorsports markets: ATV, Drag Race, Domestic Automotive, Harley-Davidson®, MX/Dirt, Off-Road, PWC, Road Race, Snowmobile, Sport Compact and Street. They will tremendously outperform the stock heads and can take much better advantage of your performance cams and exhaust system. Evo kits start at $2995, Twin Cam kits from $3099. And, the fully adjustable Fogger™ lets you choose how much is just right. We can help you find the right engine parts for your Harley-Davidson, get your motor roaring and get you back on. With a stock of more than 250,000 used motorcycle parts, Boonstra Parts is the motorcycle is the disassembly specialist of The Netherlands. What the 20 w 50 weight rating means is the oil is guaranteed, by the manufacturer, to be a 20 weight oil at 0 degrees Fahrenheit, and a 50 weight oil at 200 degrees Fahrenheit. HAMMER PERFORMANCE is the joint venture of a couple of die-hard Harley/Buell Racers, "HAMMER Dan" Norlin and Aaron Wilson. Used, second-hand Harley-Davidson EVO 1340 Engine parts. Aesthetically Pleasing Design. The dirty one is stock and the one that has been blasted has some work done on it. The quality in design and effectiveness in keeping oil temperatures low are unsurpassed. Intake and Exhaust. Part #: 140748 Mfg Part #: 106-3233. J&P Cycles carries a large selection of complete engines for Harley-Davidson and components from brands you know and trust like Andrews, Cometic, Feuling, JIMS and S&S. Head Work, Improving Harley Davidson Engine Performance. Big Sound Big Performance Big Attitude. For over 25 years STD Development has been setting the standard for the world's strongest aftermarket cases, high performance heads and related engine components for the Harley-Davidson ® and American V-Twin market. I appears they cut too much into the Aluminum if. Harley stopped using carburetors fully in 2008. Sportster models are designated in Harley-Davidson's product code by beginning with "XL". Reshape Combustion Chambers. Harley cylinder head porting specialists. Heads come complete and assembled with high quality components that include titanium retainers and 7° valve locks. We are partial to this engine and use it in most of our projects. Our heads offer the best value for your money. Honda, Duc, Triumph, you name it, maybe the exception of Victory…. Eastern Performance Cycles is your one-stop shop for everything required to get your Harley-Davidson running at it's maximum capability. The following performance upgrades are proven, dyno tested, reliable means of increasing the output of your stock 80ci Evolution powered HD. - 4-5/8" stroke SE Pro stroker flywheel and rod assembly. ) or An aftermarket crank case ventilation breather Any info will be greatly appreciated, renn. no choke levers, and a huge 2 / 3/16" (56mm) throttle body guarantees perfect driveability and unlimited performance. The World's Greatest Performance Value. 00 Perfect Seal Piston Ring set - Cost $50. CVN intake ports add high velocity and CFM, raised floor D-shaped exhaust ports, CNC combustion chambers and you have a set of cylinder heads that will make 100 horsepower. Welcome To R&R Cycles Inc. Financing Offer available only on new Harley‑Davidson ® motorcycles financed through Eaglemark Savings Bank (ESB) and is subject to credit approval. 45 to 50 HP Stock Evolution Engines are the starting point for all the modifications. Lee's Speed Shop PORTING. S&S Cycle® Powder Coated Black Performance Replacement Head - Sold in Pairs - Made in U. In other words, it has plenty of tweaks included in its design. 1340cc 80ci to 83 cubic inch Bolt-on big bore kit. Includes install of cam chest, pushrods, and rocker boxes. EVL-3010 Evolution® Big Twin Cam Kit (bearing, cam, pshrods, sprngs, titanium) SKU EVL-3011SP. I bought Speed And Science set of Shovelhead cylinders heads and rocker boxes - some of the best work I've ever seen!!! Very impressed with the Speed And Science Shovel heads and cylinders. Finally, the heads go on the flow bench to ensure that the front and rear-head flow numbers are correct and balanced for maximum power and ease of tuning. I appears they cut too much into the Aluminum if. The built-in safety mechanism, installed by Harley in the Delphi ECM, is designed to retard the timing when the ET sensor in the cylinder head hits around 250* F. 850" intake/1. You'll often find an older Harley-Davidson Evo's for sale with the 1340 Evolution engine, but is it still a great option in today's motorcycle world? We'll t. In addition you may want to bring your Shovel into the 21st century with not only improved performance but the ability to make power equivalent to the more recent Evo and Twin Cam engines. Finally, the heads go on the flow bench to ensure that the front and rear-head flow numbers are correct and balanced for maximum power and ease of tuning. The new "Custom OE" manufactures needed engines, and S&S could supply them. CUSTOMER SERVICE / TECHNICAL SUPPORT. The Harley Evolution engine helped bring Harley-Davidson back from bankruptcy. Fits 1984-1999 Harley Models with Evolution Big Twin Engine. Regular Price: $4,295. Here's a look at the technical elements and developments that allowed the 80-cu. Zipper's Performance Gift Certificates. 805-922-1202. With the 883 heads (used on 1200 motors) we can give you more flow, higher port velocity for more torque and a higher compression ratio for more horsepower. And in 1984, they did just that with the release of the Harley Evolution engine. This modern retro pays homage to the diggers from. Zipper's Gift Certificates can be purchased in any $50, $100 & $200 amounts and can be used towards any product or service from Zipper's Performance. John O'Keefe at Branch O'Keefe also does our Evolution Turbo heads, whether starting out with S&S, STD, or OEM castings. The manifold will accept 1-7/8" S & S, Bendix, Keihin (except CV) and other performance carburetors with 2 bolt flange style mount. The following performance upgrades are proven, dyno tested, reliable means of increasing the output of your stock 80ci Evolution powered HD. The Stage one package includes either a Crusher Street Sleeper 3 or S&S Stealth Intake system-Slip on Mufflers-Dynojet power Vision Tuning License and Dyno Tune. Twin Cam, EVO, EVO XL, Buell and aftermarket heads. ===== DIY Harley Engine Stand. Tyler Woodard's 2007 Sportster. Harley engines are very sensitive about their exhaust-to-intake ratio. But it is also that infinite combination that can make doing an engine build intimidating and confusing. Harley cylinder head porting specialists. Please check your local EPA authorities for street use. MEGAFLO is the business name and trademark for premium quality, professionally crafted, cylinder head modification services for Harley-Davidsons. 00" combination. CP Pistons, for those that demand the ultimate in engine performance! CP Pistons is dedicated to producing the highest quality racing components in the industry. Evolution, Sportster, Milwaukee 8, Street 500 and. HifloFiltro Premium Filters. Ultima El Bruto Complete Evolution 131" Black Motor Engine Harley Evo Big Twin offering the new "El Bruto®" Series Engines which are designed to provide our customers with a U. A 4" stroke in the Chevrolet world is a big block. When installed properly, additional airflow and performance can be expected. S&S Cases. Riders don’t have to choose between sacrificing their bike’s look for the sake of oil cooling anymore. the question is now is it worth getting performance valves or S. Branch O'Keefe EVO Turbo Heads: STD, S&S and OEM. Harley-Davidson® Screamin' Eagle® Extreme-Flow 55MM Intake Manifold. The dirty one is stock and the one that has been blasted has some work done on it. They will still perform well but peak horsepower and torque numbers will be slightly down compared to 01-03 and 06 and up bikes (the latter having redesigned ports to improve flow even). Holy smokes what a beautiful bike! But what you can't see in the photo is a very potent HAMMER PERFORMANCE engine package! It starts with the "SMASH" CNC porting done to the original 883 heads. High performance mineral monograde engine oil for use in classic Harley Davidson motorcycles. Last race of the season Temple TX Harley Parts Drags. Moroso Spark Plug Wire SetDesigned to meet or exceed original equipment specifications, Moroso Suppression Core is the ideal performance replacement wire. Full Machine Shop and Machining Services. 570 exhaust valve with a 1. Last race of the season Temple TX Harley Parts Drags. With a stock of more than 250,000 used motorcycle parts, Boonstra Parts is the motorcycle is the disassembly specialist of The Netherlands. To get great performance out of any engine, the components must work together. We also offer top-notch customer service from experienced technicians. Over 75 Years Combined Experience In Harley-Davidson performance engine building, service work, cylinder head work, and machine shop work. If you've experienced the Stage 1 power. 00 ea Mill Head High Compression $100. Click & Collect. Search on the left-hand side for your desired used parts and order these online directly. 00 pr Valve Job $365. With potential gains from 8-10 horsepower on a stock Harley. Including the Fuel Injected Models!. Hazleton, PA 18201 - We Are Not Doing Restorations At This Time. 04 shipping estimate. Twin Cam engines have the same intake valve as an Evolution engine, yet the exhaust valve on the Twin Cam is smaller than the Evos, and the Twin Cam is 88 cubic inch. 575"max valve lift, 165 LBS. Tap item to see current price. 5:1 compression standard bore for Harley Davidson Big Twin Evolution 80ci 1340cc. You can get an incredible variety of specialized parts, including high performance cases, pistons, valves, heads and cams for shovelheads. E air fitter,Ignition Module,Performance Coil, JE 10. 900" intake and 1. 1989 harley 883 hugger #1 front cylinder head 2002 HARLEY 883 RIGHT LOWER ENGINE MOTOR MOUNT 1974 harley 1000 seat 1994 Harley 1200 sportstar three wheeler kit 2001 HARLEY 1200 SPORTSTER XL Sprocket cover 2014 HARLEY 1200 SPORTSTER HEADLIGHT 1985 harley 1340 evo fairing windshield and brackets 1989 harley 1340 clutch ass and starter. James Genuine Gaskets JGI-11105 Tappet Screen O-Ring for Big Twin 70-Up. 1/28/19: SE Street Performance Slip-Ons Test Result Posted 1/22/19: New Dyno Result: 1275 + 570 Cams on an EFI 1200 1/22/19: Updates to 1200 Hop-Up Guide for 1275 Kit. Owners of Evolution® powered Big Twins can increase their engine's output with a set of our CNC-ported EV heads! The factory casting is CNC-machined to our proven high torque, high power port shapes and the valve sizes are increased to 1. With the 883 heads (used on 1200 motors) we can give you more flow, higher port velocity for more torque and a higher compression ratio for more horsepower. Harley stopped using carburetors fully in 2008. They will still perform well but peak horsepower and torque numbers will be slightly down compared to 01-03 and 06 and up bikes (the latter having redesigned ports to improve flow even). These came off an fxr that had them for 1 season with a total of 3800. 00 Crane 155# Valve springs - cost $115. 0% APR up to 12 mo. Manufacturer of high performance cylinder heads and manifolds for ford and chevy. Stock rebuild or custom big bore, we will send your complete engine back, ready to reinstall and tune in your chassis. Ø Dealer Technician for over 6 Years. S&S® Performance Replacement cylinder heads for 1986-'99 HD® Evolution® big twin engines are designed to be compatible with a stock style flat topped piston. Sportster models are designated in Harley-Davidson's product code by beginning with "XL". Welcome to "Eyeball Engineering ®" I am a small one man shop specializing in performance head-work for Harley-Davidson ® engines only. HIGH FLOWING Ports and a SPECIAL SHAPED COMBUSTION CHAMBER is what makes these Heads & Pistons produce POWER! let Paul know your stroke and what compression ratios are available?. TELE 206•718•5376. Welcome to: Hot Shot Motorworks means "Quality by Design". High performance mineral monograde engine oil for use in classic Harley Davidson motorcycles. Intake and Exhaust. High performance mineral monograde engine oil for use in classic Harley Davidson motorcycles. CVN intake ports add high velocity and CFM, raised floor D-shaped exhaust ports, CNC combustion chambers and you have a set of cylinder heads that will make 100 horsepower. com Mon-Fri: 8:30 am - 5:00. Special Price $3,999. Each HSR carburetor in the kit comes pre-jetted and ready to run!. For starters my Iron Head was a 1000, the guy I got it from put in a 1989 evo, 4 gears,, and had the step one conversion done… I litterly fell off the back of my Harley,,, I did knot expect the raw power…. Founded in 2006, Gaterman Products/Gaterman HD Lifters® has over 40 years of experience in the design and manufacturing of high performance hydraulic roller lifters for motorcycle applications. Big Bore Kit Harley Davidson Evo 1340 80 To 83. S&S Cycle® Powder Coated Black Performance Replacement Head - Sold in Pairs - Made in U. 938", which gives either 98 or 107ci depending on the year of your bike. Proven to be a leader in Horsepower solutions for Harley Davidson engines, we provide custom performance upgrades for M8, Twin Cam, Evo and Sportster motors. Every Harley engine, from the older Knucklehead motors to the modern-day Evolution engine, all had carburetors. Please check your local EPA authorities for street use. Complete port jobs starting at just $299. Stage 1 let it breathe: $1250 Performance Air Cleaner-Performance Exhaust-Power Vision License and full Dyno Tune. Home > Twin Cam ™ 88. or $98 /mo with Affirm. Crazy Horse Speed Shop Performance Motor-Cycle Machining 303-814-1709. The built-in safety mechanism, installed by Harley in the Delphi ECM, is designed to retard the timing when the ET sensor in the cylinder head hits around 250* F. New & Used Harley-Davidson Motorcycles for Sale at Barnett Harley-Davidson in El Paso, Texas. For stock Evo castings, we offer two levels of porting plus our new "Free Air Valve Job" to cover a full range of engine. R & R Engines. Stage 1 heads on a 2016 107 CID Twin Cam produce 115HP with mild cams, a stock throttle body, and mild compression. S&S® Performance Replacement cylinder heads for 1986-'99 HD® Evolution® big twin engines are designed to be compatible with a stock style flat topped piston. This will get you into looking at copies of Harley parts books for your year. 45 to 50 HP Stock Evolution Engines are the starting point for all the modifications. 900 intake valve and a 1. Fast Lane Head Work is the only specialist Harley Davidson head porting shop in the UK, and is dedicated to bringing you the very best in performance products and services for Harley Davidson Twin Cam, Evo & Sportster engines. Founded in 2006, Gaterman Products/Gaterman HD Lifters® has over 40 years of experience in the design and manufacturing of high performance hydraulic roller lifters for motorcycle applications. and Ultima® Company LLC. This head came off an 80 CID engine that produced 101 horsepower. It's true the EVO engine will not hold up to hot rodding (I know a Harley/Harley clone mechanic, and watched him rebuild an 80" EVO) But I don't understand this thing about power with a Harley. Check out our complete catalog of components. NGK's Standard Plugs are Constructed for Longer Life and Optimum Performance. Also See: Harley & After Market Harley Parts - Custom Handmade Fabricated Harley Parts - Harley Motorcycle Service. 7988 - Iron Hawg Custom Cycles Inc. IBRARY's comprehensive booklet on obtaining the best speed & power from your Harley-Davidson 45" flathead 1937-73 solo, Servi-Car, military and civilian, including model letters WL, WLA, WLC, G, GE, etc. EVL 240/240 R104. 2012 marks the 23nd year that Lee has been professionally porting Harley cylinder heads. These are the before runs of several bikes. or $98 /mo with Affirm. OilBud™ is the best Harley oil cooler on the market. Our customer base extends from coast to coast, and crosses international borders, as well. CNC Ported Harley Davidson Heads rams5434service 2020-12-23T00:22:33+00:00 18/1/18 Rams Heads Service has recently released the Harley Davidson MILWAUKEE 8 CNC Ported Heads, the new addition of the Milwaukee 8 to our CNC program has meant Rams Is one and possibly the First In Australia to offer a Performance package, And so far from the. And, the fully adjustable Fogger™ lets you choose how much is just right. Zipper’s Performance Gift Certificates. Obviously, power upgrade options exist for the other engines in the range, but take the time to read through the rest of our site, as this is discussed in massive detail to make sure that you are making the right decision when it comes to all your Harley-Davidson needs. We form the valve seats with a state-of-the-art Newen CNC Contour machine, to our unique multi-angle shape. Our products have set hundreds of performance records and milestones. With a proper tune. Milwaukee 8 WM8-22X Cam. Designed for high performance 1200cc Evolution® Sportsters® operating at 6000+ rpm, these heads offer superior flow for max power. Who knows, by contacting SAC Raging Bull on – 016 981 7199 and making use. Dyno Runs with Red Borders are the Top Performers for each type. HIGH FLOWING Ports and a SPECIAL SHAPED COMBUSTION CHAMBER is what makes these Heads & Pistons produce POWER! let Paul know your stroke and what compression ratios are available?. I prepare cylinder heads for Pan Heads®, Shovelheads®, Iron and Evolution Sportsters®, Evolution Big Twins® and, of course, the newest Twin Cam® motor. Here is the about-to-be-dissected '95 Road King with a stock 80ci Evo that's getting the top end freshened up with new heads from Branch-O'Keefe in this issue. The Evolution, also known as the Evo or Blockhead engine, was a complete revamp of the Big Twin. This is not a mass-production facility. The different shape of the exhaust port also aids in the intake and expulsion processes and any exhaust system that can bolt up to stock heads will fit on the S & S heads because the exhaust port is located in the. Our extensive line of American-made performance parts include our legendary Branch heads, cylinder head porting, and pistons; all designed to help you get the most out of your Harley Davidson. We designed a wide power band for all occasions, whether ripping through the gears or grabbing a handful to pass, loaded down, riding two-up. Performance, Parts, & Services for Harley-Davidson and other American made v-twin motorcycles. Intake and Exhaust. They will tremendously outperform the stock heads and can take much better advantage of your performance cams and exhaust system. Cylinder Head Porting, Antique and Hi-Performance American Motorcycles. Twin Cam ™ 88. You'll have more than enough ponies for whatever type of riding you do. New Products. Call for Immediate Assistance. Axtell and Dytch have had a large presence at Bonneville from the Cal Rayborn piloted streamliner to Aaron Wilson using our aluminum street cylinder to break 200 m. It was the beginning of the Porsche/HD love affair. The main difference between the two engines, beyond displacement issues, is the 132/139 EVO ORCAS are full eight bolt heads with base studs whereas the 113 EVO ORCAS are standard four bolt stud designs. Performance Engines. of seat pressure, stainless steel valves,chrome moly retainers, and seals. The page buttons at left will guide you through all the parts and or services we currently offer. From camshafts, pushrods and valves to piston kits, lifters and big bore kits, we provide only the highest quality products from some of the most distinguished manufacturers in the industry. Our engines are available in a variety of finishes including chrome, black with chrome accents, and natural. Stage 4 Performance Kit (80″ EVO): Our most popular 80″ Evo performance package, capable of producing 90+ horsepower and 90+ ft. Phone: 909-594-7969 Email: [email protected] I am considering increasing the displacement to 88 cubic inches, but I am wondering about the 89 cubic inch S&S Stroker kit. 900 intake valve and a 1. The Harley-Davidson Evolution V-twin was introduced in 1983. EVO Big Twin, 1984 - 1999 FITS. Order Today!. built High Performance engine that is priced to be the best value of any engines now on the market. Have A Custom Project Idea? Call us today on 01278 444303. Have A Custom Project Idea? Call us today on 01278 444303. Touch the button and your "hawg" turns into a wild boar. To locate a Wood Performance Dealer near you, just give us a call at 205-525-4949 or email us at [email protected] 5:1 compression. Tyler Woodard's 2007 Sportster. Branch O'Keefe EVO Turbo Heads: STD, S&S and OEM. This engine is not to be confused with the Sportster Evo - same name, different engine) - Twin Cam, 1999-present (There are 88-ci, 96-ci, 103-ci, and 110-ci versions). The stock valve seats are 1. These are great entry level performance heads for the 2006 - 2016 Twin Cam engines. When you're ready to step up to a fully ported set of heads for your Evo Big Twin, trust your heads to the pros at NRHS. Cometic Gasket supplies hi-performance gaskets for a variety of motorsports markets: ATV, Drag Race, Domestic Automotive, Harley-Davidson®, MX/Dirt, Off-Road, PWC, Road Race, Snowmobile, Sport Compact and Street. These models K, KK, KH, and KHK of 1952 to 1956 had a sidevalve ('flat head') engine. Welcome to Short Block Charlies. Each Harley exhaust is available in chrome or black, is equipped with heat shields, exhaust gaskets, bolt kits, and baffles where applicable. Zipper's Performance Gift Certificates. 00 pr Mill Head Resurface $ 75. The Evolution Big Twin is the hero of the engine line up. We carry all the major brands, including S&S Cycle, Kuryakyn, Twin Power and Mikuni. Pipe clears brake pedal and tucks under master cylinder at a 45 degree angle. Developed and tested in Milwaukee, this motor features the finest Screamin' Eagle components: - 4. 1200 Performer Cylinder Heads for Evolution® Sportster® have superior flow for maximum power. 1/28/19: SE Street Performance Slip-Ons Test Result Posted 1/22/19: New Dyno Result: 1275 + 570 Cams on an EFI 1200 1/22/19: Updates to 1200 Hop-Up Guide for 1275 Kit. Ø Owned an Aftermarket Service & Repair Shop for over 32 years. Heads come up with larger than stock 1. Heads come complete and assembled with high quality components that include titanium retainers and 7° valve locks. Big Sound Big Performance Big Attitude. Delkron can provide top to bottom engine enhancements with kits that will maximize the performance of your engine. That's why the RevTech Engines are engineered to make huge power, early and long. 898" intake valves and 1. Use these shocks to dial in your ideal combination of handling and ride. The Revolution Performance Velocity CNC Cylinder Head Package was developed on the flow bench, dyno and street to increase power and torque on 85" to 92" EVO engines. S&S Cycle Cylinder Heads For Harley Big Twin Evo. Voodoo Hydraulic Roller Cam - Harley Davidson Big Twin Evolution Cam 285/285. Gaterman HD Lifters® - Performance Motorcycle Lifters. Sep 06, 2021 · I came accross these two Evolution Heaads. Chrome Air Cleaner Support Kit, Fits Evo XL Models 1986-1990 and Big Twin. 5:1 compression ratio with stock pistons. For over 25 years STD Development has been setting the standard for the world's strongest aftermarket cases, high performance heads and related engine components for the Harley-Davidson ® and American V-Twin market. 49 US per set as shown above with all new parts and labor. This head has substantially higher low-lift flows for unreal torque increases and is capable of producing over 90 horsepower in an 80” engine (same head used in our 80/80 kit). Replacement Harley motors can cost less than a good rebuild and get you running sooner. HD Street Performance Other Services including EVO and Sportster Head Porting. Milwaukee 8 WM8-777 Cam. 00" combination. Head modifications and machining Head Services (Stock rebuilding to complete Pro Race heads) Stock (Rebuild to factory specifications) SuperStock (Focused on adding low-end and mid-range torque) ProStreet (Focused on mid-range to upper RPM HP) Hybrid (Raised intake ports, maximum effort applied for power and torque). 1340cc 80ci to 83 cubic inch Bolt-on big bore kit. With potential gains from 8-10 horsepower on a stock Harley. Stage 2 Cam it up!: $940. 1989 harley 883 hugger #1 front cylinder head 2002 HARLEY 883 RIGHT LOWER ENGINE MOTOR MOUNT 1974 harley 1000 seat 1994 Harley 1200 sportstar three wheeler kit 2001 HARLEY 1200 SPORTSTER XL Sprocket cover 2014 HARLEY 1200 SPORTSTER HEADLIGHT 1985 harley 1340 evo fairing windshield and brackets 1989 harley 1340 clutch ass and starter. Branch O'Keefe EVO Turbo Heads: STD, S&S and OEM. Whether you're building your dream bike from the ground up one bolt at a time, or replacing the V-twin on your battle-scarred Harley, J&P has complete Harley-Davidson engines ready to send you. of torque, revving faster than you can see! This is not only for your father’s touring bike—this is a rip-it-up, blast-around-town, Saturday-night-in-the-city kind of performance package. Revolution Performance can build (or rebuild) your complete engine. Zipper’s Performance Gift Certificates. 610"exhaust,. We designed a wide power band for all occasions, whether ripping through the gears or grabbing a handful to pass, loaded down, riding two-up. The stock valve seats are 1. Address: 755 Penarth Ave. Evolution Cylinder Heads Evolution - Pro Street - $1000. We use these STD heads on our 80" FXR Turbo. We carry all the major brands, including S&S Cycle, Kuryakyn, Twin Power and Mikuni. Evolution is the key word as these Keith Black Performance Piston Kits were spawned from this successful manufacturer's line of automotive pistons. Baisley Oil Pump Gears Oil pump gear set for evo big twin engines. D&D Performance Exhaust is known for it's high performance Harley Davidson exhaust systems. 1984 - 1991 Big Twin Harley Davidson. Harley Evo vs Twin Cam Engines Overall. These beauties are as rock solid as it gets. Click & Collect. Our extensive line of American-made performance parts include our legendary Branch heads, cylinder head porting, and pistons; all designed to help you get the most out of your Harley Davidson. You'll often find an older Harley-Davidson Evo's for sale with the 1340 Evolution engine, but is it still a great option in today's motorcycle world? We'll t. Ø Dealer Technician for over 6 Years. 135 HP 2" Challenge Pipes. CVN intake ports add high velocity and CFM, raised floor D-shaped exhaust ports, CNC combustion chambers and you have a set of cylinder heads that will make 100 horsepower. We will be offering, Cases, TC Cylinders up to 4. This dyno tested exhaust system is made from the highest quality mild steel, mandrel bent, and features a 1-3/4" header pipes that flow in a tapered 3" to 3-1/2" megaphone with a performance baffle. 900" intake valves, ovate wire valve springs that will support 0. Address: 755 Penarth Ave. Dual Plugging - Evo's, Twin Cams, Shovels and Cast Iron Sportsters. Dyno Tuning with an emphasis on part throttle tuning, fuel mileage and a clean burn. Here is a complete conversion kit that will eliminate those troublesome intake manifold leaks common to Knucklehead and Panheads with worn and distorted "plumber" style manifold components. for EVO, Twin Cam and Sportster Engines!! Click Here for the NEW KNIGHT PROWLER ® 2006 Dyna and 07-2017 Twin Cams Chain Drive - Gear Drive - Belt Drive. Made for riders seeking maximum displacement, compression and flow, it delivers 131. Welcome to "Eyeball Engineering ®" I am a small one man shop specializing in performance head-work for Harley-Davidson ® engines only. Meaning that they both provide high performance down the road. To download a copy of our Retail Price List, CLICK HERE. I started in house dynamometer testing in 1986 and cylinder head. Since the early 1980's, the Edelbrock Total Power Package System has solved the parts matching puzzle for many street performance enthusiasts. Regular Price: $4,295. Including the Fuel Injected Models!. DME camshafts are designed using three decades of Dyno testing, racing, touring, street rodding, and research with cams of all major manufacturers. Your "obsolete" 45" side-valve is capable of surprising speed & power, without loss of original appearance or reliability. In dragracing, our cylinders have been the first in the 10's-9's-8's-7's and 6's. While thinking about increaseing performance through modifying the heads remember that the EVO is one of the best engs HD ever brought out - the only reason they went to the TC88 is they had a engine that was so dependable that they had to change it to keep their dealers in the chips; just like Chevy did with the 283/327 engines. All EFI-equipped models require ECM calibration*. We also offer top-notch customer service from experienced technicians. Intake and Exhaust. 1340cc 80ci to 83 cubic inch Bolt-on big bore kit. It was the beginning of the Porsche/HD love affair. Find many great new & used options and get the best deals for Harley PERFORMANCE EVO HEADS S&S "Super Stock" HIGH PERFORMANCE Heads & Pistons at the best online prices at eBay! Free shipping for many products!. Standard bore (or) 3 5/8" bore. You'll often find an older Harley-Davidson Evo's for sale with the 1340 Evolution engine, but is it still a great option in today's motorcycle world? We'll t. Used, second-hand Harley-Davidson EVO 1340 Engine parts. SKU 20300701. Description. Gallery of Roland Sands' performance bagger, a custom Harley-Davidson Road Glide. HifloFiltro Premium Filters. MILWAUKEE - EIGHT 107CI TO 131CI ENGINES 2017 ON WITH CABLE CLUTCH. 00 Perfect Seal Piston Ring set - Cost $50. These beauties are as rock solid as it gets. HOME » Evolution Big Bore Kits We offer several bolt-on and monster big bore kit solutions for the evolution engine family. Stage 2 Cam it up!: $940. We can provide the following services in addition to full head service: Bore and Hone Cylinders 98 and 107" CP Piston and cylinder kits General machine work and repair EVO and Sportster head porting, Please Call For Quotation. HD Street Performance Other Services including EVO and Sportster Head Porting. Fits 1984-1999 Harley-Davidson Models with Evolution Big-Twin Engine Features: PERFORMANCE REPLACEMENT HEADS. When installed properly, additional airflow and performance can be expected. These heads work well with up to 117 ci engines. Mike works for New Castle Harley-Davidson and tuning was "seat of the pants" to 99 RWHP, 4th gear SAE. Check out the Sportster Shoot out comparison on our Firepower slip ons. Ride in, ride out performance packages for 1984-1998 Evo engines. For me, since "day one" it's been about engine related only, high-performance only, Harley-Davidsons only. Designed for high performance 1200cc Evolution® Sportsters® operating at 6000+ rpm, these heads offer superior flow for max power. Zipper's Performance Gift Certificates make a great gift. We are a Haas/Sunnen/Newen machine shop with the latest and most state-of-the-art. Replaces 84-99 Evolution style engines. If you've experienced the Stage 1 power. Use of the word Harley-Davidson®, various model names and designations, and OEM part numbers are provided soley for reference and application information and there is no affiliation between Harley-Davidson®, Inc. Performer RPM™ heads are for early models with 4 speed transmission and late models with 5 speeds. Harley EVO. and if i do how will it effect low, mid range power. These came off an fxr that had them for 1 season with a total of 3800. Engine Machining. Get a shop manual for your year and model of evolution and read it. Reshape Combustion Chambers. Who knows, by contacting SAC Raging Bull on – 016 981 7199 and making use. These heads work well with up to 117 ci engines. D&D Performance Exhaust is known for it's high performance Harley Davidson exhaust systems. Performance Upgrades 1984 - 1999 EVO. New Raptor Side Exit High Performance System. Welcome to AMS-MotoMachine, the "motorcycle" side of Automotive Machine & Supply, Inc that is dedicated to provide precision work, and quality parts for both American V-Twin and Metric motorcycles. The stock valve seats are 1. Over 75 Years Combined Experience In Harley-Davidson performance engine building, service work, cylinder head work, and machine shop work. Milwaukee 8 WM8-22XE Cam. Stage 2 Cam it up!: $940. DME camshafts are designed using three decades of Dyno testing, racing, touring, street rodding, and research with cams of all major manufacturers. 5:1 compression ratio with stock pistons.