Harley Evo Head Porting

Note 2: ALWAYS make sure you put anti-seize on the threads before inserting a spark plug into an aluminum head! The 10R12X comes out of the box with anti-seize already on it, good for the first time you install the plug only. As one of the premier Harley-Davidson machine shops in the U. General Service. Red shows the same bike with a set of our standard SLEDGE ported EFI 1200 heads and a ported version of the factory throttle body & manifold. The "Knight Prowler" Cams are designed by Wood Performance Carburetors, and are custom manufactured by Andrews Products to exact Wood Performance specifications. The heads are set up for 20cc dome pistons. Dyno Tuning with an emphasis on part throttle tuning, fuel mileage and a clean burn. If you want to keep the chamber wall from exceeding the cylinder wall, creating a ledge on the deck of the block, then stay within the scribe line by the appropriate amount. What Is Cylinder Head Porting, And How Does It Increase Horsepower? It's a job for only the most-skilled of mechanics, but head porting can lead to some impressive power gains if performed properly. Branch O'Keefe Heads 203 MPH Sportster. Custom pipes. "Already Stoned" is named after a song by a guitarist by the name of Poppa Chubby. s' Sporty, has evolved from Dynos in the garage and a machine shop in the basement, into a large, bustling business (R&R Cycle) with CNC milling stations cranking out 300+ cylinder heads a month!. Designed in conjunction with the system-matched components of the Screamin' Eagle® Milwaukee-Eight® Stage IV Performance Kit, these CNC-Ported Cylinder Heads have been meticulously machined to optimize air/fuel flow and velocity. Last year of the kicker 4 speed and chain drive. Harley cylinder head porting specialists. Zipper's pioneered CNC-porting in Twin Cam® Harley heads in 1999 with the first TC Performance Kit. T he names Harley Davidson, Evo, Twin Cam,. This is part of our Harley Davidson Performance Seminar coming soon Cylinder head porting basics Harley. 900" and a redesigned intake port for using the inexpensive SE 58mm throttle body. Our cylinder head porting upgrade will bring your CVO to life. He's been working on and improving them since 1979. Kit includes forged 10. Stock S&S 124" T-series engine (other than head porting). Head Hoggers - Harley Davidson Engine Performance Experts. Want to send my evo heads to dragon man for valve job and to be ported what type quality work does he do and will I - Answered by a verified Motorcycle Mechanic. Head work starts at $987. This will help prevent bubbles from getting trapped around the edges of the chamber as you fill it with water. Harley-Davidson Performance Guide. During the manufacturing and machining processes of a cylinder head, there are areas that are left unfinished. Kawasaki Vulcan 1470CC Heads. 5 and 45mm Rebel Race paks. Harley Davidson Sportster: 1200cc Conversion Kit Reviews. Short Block Charlie's specializes in cylinder head and performance services for Harley-Davidson motorcycles. Ported heads can dramatically increase the amount of air flow. Purchase R6 18 today online. OfferUp is the simplest way to buy and sell locally. We've gathered the best Harley Evo Heads discounts & best prices from top websites. Core exchange is available on Twin-Cam heads. These heads have 1. This is part of our Harley Davidson Performance Seminar coming soon Cylinder head porting basics Harley. This head features our upgraded intake and exhaust port design and is CNC ported for optimal efficiency. 25 Forged Pistons. Schroeder Performance specializes in building high performance engines that are reliable enough for daily use. That motor, with those heads went on to run the world's first 5 second eighth mile pass for a Pro Stock Harley. Mill Heads. The kind people at Zylstra Harley Davidson and Buell in St. We are located in Tempe, Arizona, and have a summer facility in Montana. You can see voids in the grease if it is not sealing the plexiglass to the deck. General Service. Showcasing 36 80 available for sale now on the internet. It won the A. Short-Block Charlie describes step by step porting a Scotsman's head Part 04 How to install cylinder head on a Harley v-twin S&S Revtech EVO. TG Custom Cylinder Head Porting - Sweet Valley Road, Hunlock Creek, Pennsylvania 18621 - Rated 5 based on 10 Reviews "Tommy is the best of the best when. The ports are then fully hand finished and have proven to provide a more efficient flow rate. The ultimate video on increasing horse power for your Harley Davidson Porting heads CONTACT: [email protected] This head features our upgraded intake and exhaust port design and is CNC ported for optimal efficiency. 570 exhaust valve with a 1. 860 valve unless otherwise. Similar to Vicki you will also often here Dan’s voice when contacting the shop by phone. Cylinder Heads installation, modifications and porting: Performance and Technical information on cylinder heads, valves, valve sizes, valve springs, port size, port shapes and compression ratios for Harley-Davidson motorcycles. The hold up was the cylinder heads. jd peek available now. Grand National Championship in it's first year out, and has since won dozens more. matching nos. We've gathered the best Harley Evo Heads discounts & best prices from top websites. 94" intake valve instead of the 1. Engine Repair/Engine. Or scribe the cylinder line from the crankcase with the head placed on the block. John O'Keefe now owns and runs the business and worked alongside Jerry Branch—the legendary horsepower guru and the master of cylinder head airflow, velocity, and volume, for several decades. From stock rebuilds to full beast mode engine builds, we have you covered. Performance, Parts, & Services for Harley-Davidson and other American made v-twin motorcycles. Dual plug heads with dynatek 2ki ignition. Research builds to determine the best combination of Harley engine parts for your upcoming Harley engine build project. Find Video In Stock Now. I almost wrote the other day, but porting the TS111/116 heads is not new. Harley-Davidson Softail Evo 1340. All Harley and metric riders are welcome. Fuel Moto offers comprehensive in-house cylinder head services for late model Harley Twin cam engines. We offer a full range of porting services for Evolution style cylinder heads, whether they be stock castings, S&S, Screamin' Eagle, STD, Rev Tech, Edelbrock, or any other set of heads you might have on your Harley. 99) today when you shop RevZilla for your S&S 510 Cam For Harley Big Twin Evo 1984-1999! Free Shipping, Lowest Price Guaranteed & Top of the Line Expert Service. Dual Plug with Turbo porting. Another one. 36 80 available now. If you want the most out of your Sportster talk to John at Branch O'Keefe. The name of the game in performance is increase air flow through the engine. you will want to position it so it points down to run the line. S&S Harley Replacement Engines Cylinder Head Porting Harley Performance Parts DC V-Twin Performance If you need to know the best cam for a Harley, then you have come to the right place. The Blitz project is based on a 2002 Harley Night Train, with a 180 fat rear and a 150 front mounted on 16" rims. Rev Tech® Cylinder Heads for Evolution® Big Twin and Sportster® Models True 'bolt-on' race-quality high-performance heads for street bikes. I'm certainly no expert on head porting, but from what little I've managed to learn over the years, it sounds like you are on the right. 150 intake and 1. "Already Stoned" is named after a song by a guitarist by the name of Poppa Chubby. Designed in conjunction with the system-matched components of the Screamin’ Eagle® Milwaukee-Eight® Stage IV Performance Kit, these CNC-Ported Cylinder Heads have been meticulously machined to optimize air/fuel flow and velocity. Specs include: 62cc combustion chamber, 1. I have done hundreds of Evolution heads and am currently concentrating on the Twin Cams although I still do Evos. big bore kit, includes cylinders, pistons, rings, wrist pins, gaskets, and free shipping for $710. Diamond Heads t he WORLDS ONLY PATENTED cooling system that sparkles and shines a lifetime. both bikes in exellent condition, original paint, must see. In blue is the result with EFI 1200 heads that received some special welding in the intake port ("SLEDGE PLUS" service) as well as an HPI 55mm throttle body. Ported heads can dramatically increase the amount of air flow. 610"exhaust,. Super E set up. 900" intake and 1. Harley Davidson started equipping models with the CV carburetor in 1989 and has utilized the same carb ever since. Below is a guide for our performance head packages to upgrade your Harley-Davidson Evo, Sportster, or twin cam. The upgrade increased the EVO's power from 56 rear wheel HP power to 80hp (dyno runs to support). Racing Valve Job. Save 10% ($20. Akrapovic Evolution. This will help prevent bubbles from getting trapped around the edges of the chamber as you fill it with water. Note 2: ALWAYS make sure you put anti-seize on the threads before inserting a spark plug into an aluminum head! The 10R12X comes out of the box with anti-seize already on it, good for the first time you install the plug only. Recent ignition. JLA FORUMS | Classifieds. Welcome to the official home of PURE Tuning. 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. Head Porting $525. Bob Taft of Rat’s Whole Place was running DME ported heads when his drag bike became the World's First 8-Second Evolution Powered Drag Bike. I almost wrote the other day, but porting the TS111/116 heads is not new. Dyno Tuning with an emphasis on part throttle tuning, fuel mileage and a clean burn. We take the porting and polishing to another level through aggressive intake and exhaust work including our proprietary exhaust port, improved bowl to seat blending including reshaping of the guide bos. valves and spring kit comp. Harley Davidson Sportster: 1200cc Conversion Kit Reviews. HH ported Milwaukee 8 stage 2 head port. you have here is the elbow that the vent tube is connected to comming out of the case. Blaster Cylinder Porting Exhaust part 2. Really fast motor. We inspect the seal of the seats, install new valve seals and the heads are full assembled and ready to install. With unsurpassed precision, quality, and engineering we don't have to. Although Screaming Eagle air cleaner kits, performance exhaust and bolt in cams wake up your motorcycle the power is in the Heads. Porting works hand in hand with valve grinding and seat cutting. harley cylinder head porting. We then install oversized intake and exhaust seats. Do it before you add pipes, a new carb, or anything else. It has been said many times that an internal combustion engine is nothing more than an air pump, and the more air it can. They run best when that ratio is around 90 percent, but factory levels are more like 78 percent. When we finish with 883 OR 1200 heads they have the same sized valves. valves and spring kit comp. For stock Evo castings, we offer two levels of porting plus our new "Free Air Valve Job" to cover a full range of engine. This upgrade enhances the fully CNC ported head from Harley-Davidson. Short Block Charlie's specializes in cylinder head and performance services for Harley-Davidson motorcycles. Zipper's pioneered CNC-porting in Twin Cam® Harley heads in 1999 with the first TC Performance Kit. Carbureted or Fuel Injected along with head porting and the right combination of quality parts, you can increase horse power and torque by 20-35% or more depending on your package choice. CNC ported. We also offer Cometic and CYCO Gaskets, K&N filters, D&D EXHAUST Systems, AMS-HYLIFT Lifters and Adjustable Pushrods, ANDREWS Cams, AV&V VALVES and Guides, S&S cams, gears, and other brand name parts for your Harley-Davidson at discount prices. Dual Plug with Turbo porting. Rod Rebuilding. This head features our upgraded intake and exhaust port design and is CNC ported for optimal efficiency. 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. This process allows the intake and exhaust ports to work with our custom made 2. Heads are ported to achieve maximum flow performance. Recent ignition. Complete port jobs starting at just $299. As one of the premier Harley-Davidson machine shops in the U. Mill Heads. This engine's heads flow more air on a flowbench than many cars' heads, yet stock 1340s make the least power per cylinder displacement of practically any current engine. Harley 1989 EVO motor. Lexus 2016 Is Is200t Rwd 2. Complete Lower End Service. This new bike developed 17 more hp than a stock California-equipped Evolution-powered '97 Low Rider we had tested. MAP Stage 5 Cylinder Head Preparation The MAP Stage 5 service improves upon our stage 3 cylinder head in several ways. Stage I, II & III port work is available from the experts at Star Racing. Thoroughly washed and assembled with premium Viton valve seals then vacuum tested. 75mm - Size +. XR6-T big barra oil pump,billet gearset,steel reinforced backing plate $599. 89) today when you shop RevZilla for your S&S Super Stock Cylinder Heads For Harley Twin Cam 2006-2017! Free Shipping, Lowest Price Guaranteed & Top of the Line Expert Service. Hi ratbike The only thing i have to add to the good info. Get the free app. S&S Harley Replacement Engines Cylinder Head Porting Harley Performance Parts DC V-Twin Performance If you need to know the best cam for a Harley, then you have come to the right place. You bought new Revolution Performance Big Bore Cylinders and you sent your cases, crank, and heads for modification, but not the rest of the engine. Goodson carries a wide range of professional grade porting and polishing tools and supplies. The ports are then fully hand finished and have proven to provide a more efficient flow rate. Life Is Too Short To be Slow Quality is priceless Call Us Today!. Engine Repair/Engine. If the engine can't support the head's potential, it is just that -- potential, and not practical reality. Thunderstorm heads have smaller fins than the 04-Up Sportster head & cylinder fins, and they may look funny sitting over the top of your late model cylinders. Jerry was a consultant to the official Harley-Davidson XR race teams among others and involved in the development of the Evolution motor. 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. Head work starts at $987. Designed in conjunction with the system-matched components of the Screamin’ Eagle® Milwaukee-Eight® Stage IV Performance Kit, these CNC-Ported Cylinder Heads have been meticulously machined to optimize air/fuel flow and velocity. 610"exhaust,. Ported and decked heads. Charles, Illinois, United States made available to us these photographs of this 1983 Sportster XR1000 Street Racer. matching nos. and you can increase velocity easily if you know what areas to work. 5 to 1 pistons,ported heads, S&S Ev3 cam, Dyna single fire ignition, and Supertrapp 2 into 1 pipe. We offer CNC Porting and Complete CNC Head Packages including oversize valves and performance valve springs designed to work with our big bore kits or for standard bore applications. 800 inlet port to enhance flow. It has been said many times that an internal combustion engine is nothing more than an air pump, and the more air it can. These upgraded components will maximize the amount of fuel that your V-Twin can burn, which in turn, increases its ability to create more power. The most comprehensive and complete Harley-Davidson Motorcycle machine shop in New York State, and the entire Northeast! With clients on 4 continents, and 30 years of being in business, we have become the tried, true, and trusted source for your Harley-Davidson engine performance building / rebuilding and cylinder head work. I am a small one man shop specializing in performance head-work for Harley-Davidson ® engines only. you will want to position it so it points down to run the line. These things have combined to make Lee one of the premier Harley cylinder head porters in the world. HARLEY-DAVIDSON. 005 Kibblewhite Ampro-45 Intake Valve Guide Harley Evolution Big Twins. Big Bore Kits for Harley I have a 1994 Dyna Wide Glide I’m customizing this winter. With an Harley Evo that produces around 100HP, Baker 5 speed, and Bandit Machine Works 2" belt drive that gives it that aggressive look that will turn heads. first and last of shovel & evo softail wide glides 4 speed kickers. 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. 7 to 1 compression plus my heads have been milled 050. John O'Keefe now owns and runs the business and worked alongside Jerry Branch—the legendary horsepower guru and the master of cylinder head airflow, velocity, and volume, for several decades. All machine work is done IN HOUSE at Star Racing in Americus, Georgia. In blue is the result with EFI 1200 heads that received some special welding in the intake port ("SLEDGE PLUS" service) as well as an HPI 55mm throttle body. Featuring Block Ford 289 available for purchasing right now. 700 exhaust valves, with corrected geometry built in. Company Profile. The page buttons at left will guide you through all the parts and or services we currently offer. When a port is machined for a seat, often a lip is left below the seat. discussion board for cvo harley owners flhrsei flhrsei2 fxstdsei fltrsei fltrsei2 fxr2 fxr3 fxr4 fxdwg2 fxdwg3 fxtdse2 flhtcse flhtcse2 flstfse vrscse flstfse2 vrscse2 flhtcuse vrxse flhtcuse2 flhrse3 fxstsse fxdse flhtcuse3 flhrse4 fxstsse2 fxdse2 fltrse3 flhtcuse4 fxstsse3 fxdfse flhtcuse5 fxdfse2 flstse flhxse fltruse flhxse2 flstse2. If you have stripped threads, an early Shovelhead you want converted to long reach or are looking to have your Sportster, Shovelhead or Evolution dual plugged, we have the capabilities. Since 1989, STD cylinder heads have proven to be the absolute strongest and most versatile castings available by a long shot! MEGAFLO prepared STD's have been available since their introduction and have been used in finished form for a wide variety of applications, from stock replacement Panhead to 155 cubic inch all out racing!. The innovative, quality-driven approach is carried on today by Branch-O’Keefe. Showcasing Jd Peek available for sale now on the internet. Here we have a set of never before run edelbrock heads. Zipper's pioneered CNC-porting in Twin Cam® Harley heads in 1999 with the first TC Performance Kit. For example, if the camshaft is advanced, the intake valve closes sooner. Updated June '07 — and were converted from 10" to 28". Cylinder Head Port Shapes. With our state of the art Haas ES5-4t 5-axis CNC machining center and digitizing equipment, Mike's Racing Heads can duplicate Your current porting program or design and produce a new porting program for your shop. With 19 years of experience we have expanded our line of CNC ported and combustion chamber designs to cover most popular Screaming Eagle and aftermarket engine configurations for Harley engines. 480 " exhausts. My builder thinks God made the Evo headswhich leads to his "cleaning up" my heads and not going with a more focused port/polish. Search different Harley Davidson engine builds and see their results. The name of the game in performance is increase air flow through the engine. Brodix Bb-3 Xtra Series 24 Degree Cylinder Heads 2030001-2038115. author well versed in head porting procedures and techniques. Our years of drag racing experience. We inspect the seal of the seats, install new valve seals and the heads are full assembled and ready to install. This is the world famous SCOTTSMAN cylinder heads. Harley-Davidson XR750. You bought new Revolution Performance Big Bore Cylinders and you sent your cases, crank, and heads for modification, but not the rest of the engine. My builder thinks God made the Evo headswhich leads to his "cleaning up" my heads and not going with a more focused port/polish. Cylinder Heads modifications and Porting: Performance and Technical information on cylinder heads, valves, valve sizes, valve springs, port size, port shapes and compression ratios for Harley-Davidson motorcycles. We are a Haas/Sunnen/Newen machine shop with the latest and most state-of-the-art equipment available. Accutronix Forward Controls Black Evo For Harley-davidson Night Train 1999. It is targeted at saving you and I both time and repeated explanations. 40 Off Yamaha Gytr® 14-17 Yz450f Ported Cylinder Head Assembly 1sl-e11b0-v0-00. 25 Forged Pistons. Afr 457cc Bbc 18° 100 Fully Cnc Ported Magnum Aluminum Cylinder Heads 3708 Pair. Accutronix Forward Controls Black Evo For Harley-davidson Softail 1984-99. New, rebuilt, and used Harley Evo engines for sale by individuals, parts suppliers, and dealers. 2 to 1 domed pistons, Mikuni carburetor, Comp Cams V thunder cam, ported heads, python exhaust, new clutch, dyno tuned. These sealed magnet rotors eliminate the common problem of clutch magnets coming loose. As one of the premier Harley-Davidson machine shops in the U. Complete port jobs starting at just $299. 850" intake/1. Heads are currently available for a variety of Pan head, Pan/Shovel head and Shovel head configurations. Don't let those elegant colours deceive you. This engine's heads flow more air on a flowbench than many cars' heads, yet stock 1340s make the least power per cylinder displacement of practically any current engine. 860 valve unless otherwise. It all depends on what you're building. 5 to 1 pistons, Suburban Speed ported cylinder heads, stage 2 performance cams, adjustable pushrods, 42mm flat slide carb, performance intake manifold and high flow air filter. The innovative, quality-driven approach is carried on today by Branch-O’Keefe. Harley Davidson discussion forum and news for owners and enthusiasts of Harley-Davidson motorcycles. Kit includes forged 10. The CVO’s come from Harley Davidson with less than one horsepower per cubic inch. The Harley Stage 4 upgrade consists of ported heads and a high performance carburetor or throttle body. With 19 years of experience we have expanded our line of CNC ported and combustion chamber designs to cover most popular Screaming Eagle and aftermarket engine configurations for Harley engines. Press the plexiglass onto the chamber deck with the hole at the edge of the chamber. During the manufacturing and machining processes of a cylinder head, there are areas that are left unfinished. Porting, polishing, trimming valve guides ALL a serious balance. If you want the most out of your Sportster talk to John at Branch O'Keefe. Head Porting. Cylinder head porting is the key to gaining more horsepower for your engine. Standard bore (or) 3 5/8" bore. Harley Davidson Ported Twin Cam heads 1999- to 2019. HH ported Milwaukee 8 stage 2 head port. EVO Big Twin, 1984 - 1999 FITS. Kawasaki Vulcan 1470CC Heads. Flywheel Balancing. Short-Block Charlie describes step by step porting a Scotsman's head Part 04 How to install cylinder head on a Harley v-twin S&S Revtech EVO. Racing Valve Job. Alternator Rotors. 140 CI Complete Engine #298-243 Complete 140 CI Engine, Natural. XR6-T big barra oil pump,billet gearset,steel reinforced backing plate $599. Oil return updated to Harley bulletin. Shovels & Pans are by no means excluded, but they usually require repairs that make pricing impossible without having them in hand. Upgrade Your Heads with CNC Porting. Harley-Davidson XR750. all genuine harley chrome accessories. This will help prevent bubbles from getting trapped around the edges of the chamber as you fill it with water. Red shows the same bike with a set of our standard SLEDGE ported EFI 1200 heads and a ported version of the factory throttle body & manifold. 23 degree SB CHEV heads in stock. HARLEY EVO PORTED CYLINDER HEADS 82cc FXR SOFTAIL TOURING DYNA * PERFORMANCE. Dyno Tuning with an emphasis on part throttle tuning, fuel mileage and a clean burn. Jims 959 Tool Case Bearing Conv Tc. and you can increase velocity easily if you know what areas to work. This kit will increase power by 50%. The following information is provided just to help give a basic understanding to consumers and enthusiasts, plus hopefully stimulate future studies. This is a great example of what our 107 Big Bore Kit can do for you! This is installed in a 2009 Street Glide. Purpose This is the perfect package for the performance enthusiast on a budget that is just looking to improve the torque output, smoothness, and longevity of the motor. 5 thru 45mm Carbs for Harley-Davidson - 43. Clicking on the links below will open a detailed description of the Twin cam heads in a new window on eBay. Just be careful as the clerance on the nipple end has a very close clerance to the case which can easily be damaged when turning it to point in the right direction. 615" stainless steel high flow 7mm stem valves, bronze manganese guides, and our super trick PAC Alloy endurance. For each engine type we can offer three different levels of service; CNC porting only (for engine shops), or CNC porting plus all other machining (guides, seats etc) ready for you to fit your own parts, or fully assembled with all work done ready for you to bolt on. Dan joined his father, Wes Baisley, as a founding partner of Baisley Hi-Performance in 1973. The heads are set up for 20cc dome pistons. Get the best deals on Other Motorcycle Engines & Parts when you shop the largest New Genuine Harley Davidson oil filter wrench softail dyna touring sportster USA. KEYTRUDA is a prescription medicine used to treat a kind of cancer called head and neck squamous cell cancer (HNSCC). Cylinder head work was Dynobob's first love. Lexus 2016. The new motor's torque figures were even more outstanding; it had over 70 lb-ft at 1,500 rpm and 79. If you're trying to improve the performance of an older engine these heads will provide a great place to start. This kit will increase power by 50%. Patrick Racing offers a wide range of performance products and services for the Harley Davidsons, Metric Cruisers and Custom Builds. Title stays with me. Evo Big Twin Pro Street Series pistons. Porting on your 1984-1999 EVO heads (factory or S&S, Ultima, etc. Our years of drag racing experience. High-velocity airflow through the ports in the heads leads to better acceleration, improved midrange, and great throttle response. Below is a guide for our performance head packages to upgrade your Harley-Davidson Evo, Sportster, or twin cam. Harley-Davidson XR750. You want to tilt the head so that the hole is at the highest point. harley cylinder head porting. Dyno Tuning with an emphasis on part throttle tuning, fuel mileage and a clean burn. When it comes to the Sportster heads there are many options. I weld up the intake port and reshape it to be a high velocity good flowing head. When the engine was first produced, the Shovelhead had a shallower combustion chamber, larger valve drop for both intake and exhaust, better porting, and stronger valves and pistons. Dan Vance Racing has been providing performance options for Harley Davidson motorcycles for over 30 years. The upgrade increased the EVO's power from 56 rear wheel HP power to 80hp (dyno runs to support). Head work starts at $987. Using the latest CAD technology, we design and develop high flowing intake and exhaust ports for various Harley-Davidson™ cylinder heads. jd peek available now. The page buttons at left will guide you through all the parts and or services we currently offer. - Answered by a verified Motorcycle Mechanic. Really fast motor. Shovels & Pans are by no means excluded, but they usually require repairs that make pricing impossible without having them in hand. All flow numbers for FLO Headworks Ported heads come from their Web Site. The ultimate video on increasing horse power for your Harley Davidson Porting heads CONTACT: [email protected] Harley Evolution Big Twins and Sportsters have very different cam arrangements from each other, but they do have a few things in common. Head Hoggers – Harley Davidson Engine Performance Experts. discussion board for cvo harley owners flhrsei flhrsei2 fxstdsei fltrsei fltrsei2 fxr2 fxr3 fxr4 fxdwg2 fxdwg3 fxtdse2 flhtcse flhtcse2 flstfse vrscse flstfse2 vrscse2 flhtcuse vrxse flhtcuse2 flhrse3 fxstsse fxdse flhtcuse3 flhrse4 fxstsse2 fxdse2 fltrse3 flhtcuse4 fxstsse3 fxdfse flhtcuse5 fxdfse2 flstse flhxse fltruse flhxse2 flstse2. Flywheel Balancing. Zipper's pioneered CNC-porting in Twin Cam® Harley heads in 1999 with the first TC Performance Kit. Harley S And S Cycle Ss Evo Cylinder Heads Fxrs Fxr Fltc Touring Flstf 90-1000. Welcome to Harley Chat Group. Twin Cam Head Work. One of those shared traits is the fact that the main drive gear, that meshes with the pinion gear, is a pressed-on gear, and if a person knows what he's doing, that gear can be pressed off and back on again. S&S EVO ported and flowed heads. Bore/Hone Cylinders W/ Torque Plates. Cylinder head repair, porting, valve jobs, boring new pistons, honing with torque plates. Evolution (EVO) Engine Modifications. Both the heads and cylinders of the Evolution engine are made from aluminum to reduce weight compared to a cast iron design. of seat pressure, stainless steel valves,chrome moly retainers, and seals. We take the porting and polishing to another level through aggressive intake and exhaust work including our proprietary exhaust port, improved bowl to seat blending including reshaping of the guide bos. I also weld in the exhaust port which really makes these heads rock and roll. The increased "squish" area of this design sets up a controlled turbulence in the combustion chamber. "Already Stoned" is named after a song by a guitarist by the name of Poppa Chubby. Clicking on the links below will open a detailed description of the Twin cam heads in a new window on eBay. The Shovelhead engine is a motorcycle engine that was produced by Harley-Davidson from 1966 to 1984, built as a successor to the previous Panhead engine. Take a look at the photos below. Night Rider list also shows the necessity of matching the componentsnotice the stock heads are listed with 80 inchers when the compression is stock--up to the low 9's. Evo Price List.