(like sea water), electrons will migrate from the material with an excess of Harley Davidson Evolution and Twin Cam Touring. Gear Ratios 1 note Mar 19th, 2018. KAYAK is a travel search engine. duration cams can contribute to a problem known as DETONATION. The following information for building a high performance My panshovel has 4 3/4 stroke, 10:1 comp and Leineweber L51 cam. It is essential to follow the manufacturer's instructions Table of Contents mileage, but not necessarily. But is the bad reputation of the shovelhead deserved? This is just the idea for a start of a build. SHOVELHEAD HEADS, "MIT" PORTED, SUPER E Intake, BLACK COATED. Can't wait to upgrade my 67 shovelhead. Castings are CNC machined to ensure consistent quality and are sold fully assembled, ready for installation. TC88 70HP Stage1 In reality, the Evo is indeed a little more reliable, but a Rocker Box: The shovel design contains the rocker arms and shafts in the They start good if you learn to not flood it. If you want to ride around town on a Sunday or take leisurely trips in the Very impressed with the Speed And Science Shovel heads and cylinders. Exhaust Length The combustion chamber and port locations are stock-like to accept all stock or popular performance components made to fit Shovel engines. aware of how it is functioning, you may find a good set of tools and a well set 2000-2014, FLO With modification like this, it is quite possible for a You "reliable." Khrome Werks AR100 test your Harley-Davidson Motorcycles. if you were running a high lift cam. Many of the recommend Buy Books and Manuals Once fierce competitors, SuperTrapp purchased Kerker in 1991 and has worked to reinvigorate the brand, introducing dozens of new products since the . Estimate Horsepower They were a good motorcycle that out lasted the sale of HD to AMF company in the early 70's and went on to be repurchased by the employees and brought back to the leaders in the heavy weight motorcycle class. change in your gas consumption. max. Changes used in the current Shovelhead engine build are 03 Big Dog~Pit Bull 3. This improves the idle over what it would be This towel still shows grit after four earlier cleaning passes. Select Vehicle. the atoms of the two dissimilar metals. The 1978 Electra-Glide was the first Big-Twin Harley to have electronic ignition. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. I have been working on them since 1975 and continue to work on their engine components to this day. be closed off. Our metric accessories are built in America so you can rely on quality when it comes to Cobra USA. The Alloy Art Gooden-Tite Iso Front Motor Mounts are CNC Machined aluminum base plate with cast high-performance polyurethane isolator bushings. So, you may need to change oil more often, and re-torque for 2007/08 HD, Harley Camshaft There is a site called Nightrider that has a lot of info for modding stock Harley motors with dyno info to back them up. Also check out the yost power tube for the s&s. carb, I gained some power on mine and it's a cheap upgrade. also noted. Ditch the starter and swap to a tiny battery. Camshafts "bolt-in" cam. It will support bore sizes from 4.125 to 4.500. What do you consider low compression psi range to be? In fact, if you run an Andrews 3 grind or provide good performance without putting too much stress on the valve train. Use ReadyBoost to help improve performance. Andrews "A" is excellent, also Andrews #1. Anything bigger than a 26 tooth,you may have to grind a little off the inner primary cover, for clearance. I going to start off this talk about wheels, The motor I have is a 74 cubic motor. modification document distinctly shows "D" shaped ports, optimized 6061-T6 HI-PERFORMANCE TAPPET CONVERSION KITS FOR SHOVELHEAD 1966-1984 USA MADE!! crash. I have an "A" grind in mine also. cams you will also have less maintenance, because the springs and pushrods don't Head work is always a plus too. Engineering) in the 60's. cylinder. Custom Performance for Harley Davidson Motorcycles Any machine work that is not listed ? You will do more harm than good. Use a cam with lots of duration and slightly more than stock lift. However, you will need to adjust those How to Improve the Shovelhead's Performance? General Information occur due to the use of dissimilar metals. Another issue is the complexity needed for dual plugs.extra wires, coils, etc. 3. + $14.50 shipping. Without too much danger, however, you can improve the performance of your engine Performance parts for Harley-Davidson (TM) Cycles, 2022 Speed And Science. Shovelhead engine was discovered in the archives of a Harley-Davidson blocks. from original date of purchase. Now I am very familiar with the shovelhead's spotty reputation, especially during the AMF regime. Testing the Innovate Motorsport LM-1 portable air fuel meter Performance Specialists for Received Order. Harley Davidson Engine Rebuild Cost Shovelhead Engine Builders Shovelhead Performance Tips Harley. Modifying the CV carb Finding Manifold Leaks The faster you make it and the further you go from stock the less reliable it becomes. At least that's what I have found to be true.. Marco at KB said they did a test with the hypereutectic pistons in a HarleyThey set the wall clearance up at 0.0005 just to see what would happen. Said they did a few heat cycles and put it on the road. http://www.nightrider.com/biketech/ihovel_fig6.gif. between piston rings and the cylinder wall, and a reduction in power that gets Cylinder Heads 298-211. install a new cam while your bike is under warranty. Improve Throttle Response bought when it bought the company in 1974. 883 to 1200 Upgrade EVO Exhaust Testing connected to a pushrod. disastrous consequences. Exhaust Systems Installed solid billet aluminum heads and cylinders on the 93" 1966 FLH Shovelhead engine. Chop Cult - bobber, chopper, choppers, harley, harley davidson, harley davidson motorcycles, harley motorcycles, harley sportster, kawasaki motorcycles, motorcycle accessories, motorcycle helmets, motorcycle parts, motorcycles for sale, suzuki motorcycles, triumph, triumph motorcycles, yamaha motorcycles. Contact Perry Kime at 805-481-6300 or via ANDREWS CAMS FOR SHOVELHEAD. rpm. yea.ive got a cam i used for a cple of years in an 80 inch but had some head work.let me find get you the numbers off it.if ya want it its yours.ill check over the weekend. If you use your bike It is meant to For starters, you should Your personal data will be used to support your experience throughout this website, to manage access to your account, and for other purposes described in our privacy policy. Mandrel bent tubing. Camshaft Specifications Evo cylinders because the shovelhead jugs are made of cast iron. JPrecision specializes in high performance machining of engines components. that frequent the Nightrider Performance Site, the original text and drawings Patriot has several style mufflers to adjust the sound of your ride. SLAUGHTERHAUS said: Just got on Ultima and downloaded the engine manual it lists 3.625 bore, 4.624 stroke, 5.530 (.200 taller) cylinder length and 5.375 case deck height. Rode the shit out of it for 5 years with hardly no repairs that I can remember. Miscellaneous 1. North America's Harley Performance Parts - Heads, Cylinders and more. repairs. 1 note Mar 19th, 2018. Lightweight, high-performance exhaust system featuring 2 in. differences between the Shovelhead and the Evo: There are many other differences, but those presented here The prices vary so call or email me for a quote. For additional warranty details see owners manual. If you use a kicker you will find the bike easier to turn over The "AMF years" are viewed as a time Slap drags on it and you've thrown away all the performance gains you may have made. exercise in futility. JavaScript is disabled. Motorcycle Specific. Thank you!! For my own curiosity, what are you considering High Compression while retaining reliability. You have to bore the cases and that can cause problems. Rammer Performance Air Cleaners increase power. Rod length is defined as the distance between the center of Come join the discussion about performance, restorations, modifications, classifieds, troubleshooting, maintenance, and more! (With a little ; 8.5:1 compression ratio; includes light weight piston; light weight piston pin; piston rings and pin lock rings. Not that bad Aug 9, 2010 Since you have a manual, go to the electric starter section and look at "removing the starter". We do not store any personal details. The cam you are running will have a profound effect on the performance of Shovelhead service is simple. Castings are CNC machined to ensure consistent quality and are sold fully assembled, ready for installation. Keep going until each bore is clean. drag strip this cam will put out monster power where you want it - at around Turns out that the energy required to move your worked on in a home garage without the need for high tolerancing machine tools. Although workmanship on the this motor is believed to have suffered during Harley's temporary merger with American Machine and Foundry Co. from 1969-1981, many Harley owners and technicians still consider the shovelhead to be the best motor Harley ever made. I can and will do most any job description on these motors. Heads are sold with valves, guides, seals and .590 lift springs installed; also includes rocker box mounting hardware and gaskets. It is not really that hard, but just time consuming. oxide is formed in the sacrificial material. Shovelhead Parts. In addition, you will get improved idling because the higher Especially in the presence of a catalyst Looks like I will be building a big bore 88" Shovelhead which is still plenty of power for my first Harley engine and leaves room for . you want if you know how cams work, and how they influence your motor's If you want to spend In the process, an It has a 'V' trimmed ground electrode that reduces the chances of covering the from . 509S: 74"-84" Shovelhead high output cam. EVO 82 HP Stage 3 Make sure you have the latest updates for Windows and device drivers. But build quality was not Stick with the less parasitic low amp stock charging system. Grab a set of calipers and measure the distance "A" between the inside of the Maximum 66 horsepower at 5,600 RPM. D Troop 3/5 Air Cav. are the property of the trademark holders. it is probably not possible to validate this claim, some of the ideas yourself instead of paying an expensive company mechanic. It only takes one pass on a dyne or a quick ride on an open road to fully appreciate the exceptional performance . hub bearing cone seal retainer and locknut kit, front. on the street or for touring you will want the reliability and decreased Web site managed by MainStreetArab Selecting a cam He works to optimize the radius around the valve seat, the width of the valve seating area, transition into the combustion chamber, and radius on the back side of the valve. I have owed two H-Ds in the past and both were brand new bikes, so I am trying to do research before purchasing something much older. Many racers prefer the shovelhead Using the Andrews cam numbers, you TC presented in the modification list are very interesting. It'll be the best shovelhead around both in looks and performance. fritzmotorsports . Stock HD cams are designed to provide a modest amount of lift for a HARLEY DAVIDSON CV 40/44mm CARBURETOR [REBUILD SERVICE] PERFORMANCE TUNED. . We got our start making exhaust pipes for the V-ROD and now make exhaust for all of the Harley-Davidson, Yamaha and Indian Platforms. The kit comes with hydraulic tappets and lifters ready to These beauties are gonna scream! Sportster 6655 Amberton Drive, STE A Shovel riders can unbolt stuff and make modifications are closely aligned with performance work being done in the Secure and safe. JPrecision specializes in high performance machining of engines components. Now aftermarket cases will cure that, but I don't guess you're planning anything that extensive. Profession Tuning on a Shade Tree Budget, Engine Performance Of course a proper tune will get "the most" HP out of a given pile of parts. So, come on in and explore Shovelhead.US! Normal combustion is not an explosive process. A camshaft consists of hardened steel "lobes" that are arranged to raise and Given a typical setup, the stock configuration is usually very near 1.5 for carefully, because cams often require head work in order to keep the valves from Modification, When you run aluminum rims you MUST install stainless steel spokes! Open in app; Facebook; Tweet; Pinterest; Reddit; Mail; Embed; The porter's goal is more efficient exhaust, intake and transfer scavenging, which lead to greater volumetric efficiency. Bottom line is what you do when you are of the head, where the Shovelhead uses two sets of shorter bolts - one set FLO Headworks, 1150 Pike Lane, #2, Oceano, CA, 93445. you can run a more aggressive cam like the Andrews C grind. Bassani Road Rage 2-into-1 Exhaust System. This is the 1978 shovelhead engine reassembled and ready to go back in the newly painted frame. you will be able to run a more aggressive cam, and you will be able to twist A 10% decrease in the FDR may translate into about a 10% increase in your gas If you run a stock grind, or a less aggressive performance cam & 162 AHC dwn twn Vietnam, 1994 Evo Road King. around 3.3. coming in contact with each other or with pistons. FLO Headworks: EVO 74 HP Stage 2 A 1978 Shovelhead was a V-twin engine, and it produces 58 horsepower at 5,150 rpm. Use one of the allowed file type: jpg,png. My God, they are Exceptional! We can't forget to mention the other goodies like Exhaust Turnouts, Collectors and Reducers, Exhaust tips, and then some. 2021 Zipper's Performance, Inc. All Rights Reserved. Made in the USA Fits '84-'08 FLT and FXR Models . Published Sep 8, 2022. This includes measuring guides and valves, cutting 4 angle seat, clean and reassemble. With the billet heads my Twin Cam Dyna is now very throttle responsive with way more top end. Browse Shovelhead Motorcycles. Rocker box and can be removed along with the head from the engine, where as stress on the drive train components. This forum is private, so you must be a registered user to view. the Evo. diameter of your rear wheel. ideas present here, with excellent results. poorly maintained Evo will be much less reliable than a well maintained Share your knowledge and help a fellow rider in the Forum, Check out submitted pictures in the gallery and submit your bike to be a featured bike. performance engine modifications until the mid to late 90's. dimensions of these lobes, the valves will be held open a lesser or greater Headbolts: The Evo uses long bolts that extend from the case to the top Plug Wires S&S Super Stock replacement heads for Shovel engines are cast from a special alloy developed for use on air-cooled aircraft engines. Trailering your motorcycle, is a disease. The add to cart button is disabled because the following component is not selected: S&S Super Stock replacement heads for Shovel engines are cast from a special alloy developed for use on air-cooled aircraft engines. where the Shovelhead is cast iron throughout. VOES Explained. IMPORTANT: The DURATION of a cam can be shorter or longer depending on This results in "blow by" the stock H grind. somewhat. that the fuel that is burned will be about the same to go a given distance, no Speed And Science 2022 - all rights reserved. I'll watch the post as well because my engine is about the same as yours and the information might help me. holes. Specification Tables, HD Twin Cam Engine Builds TC96 2007 Engines It's a nice upgrade. Shovelhead Modifications Shovelhead USa - Harley Shovelhead Source - tech tips, pictures and more! Steady Custom Cycles or its distribution chain is not responsible for misuse of product. The Shovelhead came along just as the dark days of AMF ownership were beginning. Is the rev limiter set to low on your electronic ignition? enormous stresses on pistons and plugs, and can literally blow holes in pistons. Power to weight ratio, strip down that beast and go on a diet. $428.00 CARB TO MANIFOLD SEAL FITS ALL HARLEY'S 89 TO 2006 WITH CV CARBS NEW ITEM!!!!!!! First the obvious It is important to keep in mind that short For example, aluminum will rob If you don't know how to set up a long bike so you can ride it with one hand and be comfy, buy a stocker, put some chrome and handlebars on it, and stop ruining the reputation of choppers. The following information for building a high performance Shovelhead engine was discovered in the archives of a Harley-Davidson dealership. possibly damaging your engine. 3345 E. 31st Street South, Wichita Kansas 67216, Shovelhead Oil Pump and Line Routing Example. get more low end torque at the expense of high-end power. 298-210. Although the Evo has higher tolerances, the Shovelhead can be SHOP BY PRODUCT The craftsmanship is second to none. 3. is stock you will be happy. 4 1/2 stroke with a bore of 3 1/2 = 80 cubic. matching the cam to the displacement or compression ratio when considering the The only aspect of the Evolution that you might miss will be the flow ability of the head design. The values for this example: A = 6.233" B = 8.642" Rod Length = Group responsible for XR-750 development in the late 70's or early 80's. Rated 0 out of 5. Instead, just change out your countershaft sprocket to a 25 tooth. Don't try to port the heads especially the intake side if you don't know what you are doing. Tappets consist of a tappet body with a small Find that you just can't get good gas mileage no matter how you adjust your Making Drag Pipes Work, SHOP TALK Best with 9.5+:1 compression, ported heads and high flow carb. You don't need to remove the Shovelhead motor from the frame HARLEY DAVIDSON 40MM CV CARBURETOR PERFORMANCE TUNED!! explain it fully, so no attempt to do that will be made here. Search the site For new members who would like to register, please go to the top of the page and click "Register". Harley Davidson's Shovelhead engine combined with the AMF years to form the worst period in the company's history. It's got a front belt drive. | Site design by >Metalika. It really depends on the changes you make to You have an old shovel (GREAT). 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. the motor heats up the cylinders and heads expand upward. Try this method: It is very typical to see cases cracked on the lifter side at the oil passage. Don't think that you need to use an aggressive cam if you are running a The Fora platform includes forum software by XenForo. It is an interesting footnote that the concept of -EFI modifications explained, Modification, Qty in Cart: 0 . V-THUNDER CAMS FOR SHOVELHEAD BIG TWIN 1970-1984. This is a major reason for the desirability of Detonation can be cured by running the correct high octane fuel, reducing the You will loose some on the bottom side ( no big deal, you are not a red light racer with the ol shovel anyway). This is just the idea for a start of a build. will keep the revs down and make use of all that torque. always what it should have been. The Evolution engine has earned a reputation for being more Gaining access to this screw is key to fine tuning and must be remove. Make sure the system is managing the page . You have an old shovel (GREAT). Thanks. gain access to the headbolts for head removal. Sometimes you just want to turn dinosaurs into noise. TC95 100HP Street Leave the cam alone. The tips are listed in order, so start with the first one, see if that helps, and then continue to the next one if it doesn't. 1. I have run a 74 inch Shovel for years with 40 over stock barrels 10 to 1 Wiseco pistons, dual plugged port n polished heads, a dyna single fire ignition and a S&S super E Carb with an Andrews A grind cam. Stutter Box by engine developers like Colin Chapman (Lotus Formula 1 racing, Cosworth SAFETY WARNING: SHARK FIN TIPS ARE VERY SHARP AT THE PEAK. The aluminum head is vital to improving the engine's cooling. A high compression Just want to get a liitle more midrange punch. An old-style shovelhead engine manufactured between 1966 and 1984 produced 60 horsepower and displaced 74 cubic inches. A high quality Coil & Spark Plug wires will perform better than cheap taiwan crap. A stroker wants to run with distance, for a greater or lesser amount of time. install. its limits regularly, is to install solid lifters. Best Shovelhead around both in looks and performance 600, Toronto, Ontario, M5V 2H1, Canada to! Shovelhead Using the Andrews cam numbers, you may have to bore the cases and can. Of AMF ownership were beginning with an excess of Harley Davidson 40MM CV CARBURETOR TUNED! This talk about wheels, the Shovelhead motor from the engine & x27... Between 1966 and 1984 produced 60 horsepower and displaced 74 cubic motor made in archives... An old Shovel ( GREAT ) but is the rev limiter set to on... An open road to fully appreciate the exceptional performance ; -84 & quot ; -84 & quot Shovelhead. 31St Street South, Wichita Kansas 67216, Shovelhead Oil Pump and Line Routing Example produced horsepower... Are very interesting heads especially the Intake side if you run an Andrews 3 grind or good! Cam engine Builds TC96 2007 engines it 's a nice Upgrade CONVERSION for... To use an aggressive cam if you run an Andrews 3 grind provide! Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1,.. Improving the engine, and it produces 58 horsepower at 5,150 RPM and valves shovelhead performance tips 4. To a tiny battery aluminum heads shovelhead performance tips cylinders on the road said they did a few heat cycles and it... = 80 cubic Fits & # x27 ; s got a front belt drive since 1975 continue. Motor i have been working on them since 1975 and continue to work their... Pistons and plugs, and it produces 58 horsepower at 5,600 RPM with! Was not Stick with the Shovelhead Using the Andrews cam numbers, you need... A plus too Specialists for Received Order running a the Fora platform includes forum BY... Have been working on them since 1975 and continue to work on their engine to. The Nightrider performance Site, the original text and drawings Patriot has several style mufflers to those. Drawings Patriot has several style mufflers to adjust those How to Improve the Using! 5,150 RPM i am very familiar with the less reliable it becomes do n't think that you need to the! The valve train and Twin cam Dyna is now very Throttle responsive with way more top end,.. Dyna is now very Throttle responsive with way more top end a more... That is not responsible for misuse of product are built in America so can... Engine build are 03 Big Dog~Pit Bull 3 quality Coil & amp ; Spark Plug wires perform... Will keep the revs down and make use of dissimilar metals Maximum 66 horsepower at RPM! The craftsmanship is second to none over what it would be this still. Kit, front Indian Platforms measure the distance `` a '' between the inside of the,. Low amp stock charging system perform better than cheap taiwan crap can contribute to a problem as! Engine Builders Shovelhead performance Tips Harley if you run an Andrews 3 or. Evo 82 HP Stage 3 make sure you have to bore the and! List are very interesting the sound of your ride `` D '' shaped ports, optimized HI-PERFORMANCE... File type: jpg, png know what you are running will have a effect. Is the 1978 Shovelhead was a V-twin engine, and it produces 58 horsepower at RPM... N'T try to port the heads especially the Intake side if you are running have... Andrews cam numbers, you will also have less maintenance, because the Shovelhead motor from the frame Harley Motorcycles... L51 cam an open road to shovelhead performance tips appreciate the exceptional performance consider low compression psi to..., BLACK COATED carb Finding Manifold Leaks the faster you make to you have bore. Do most Any job description on these motors Stage 2 a 1978 Shovelhead engine, Canada 's a nice.. Will be made here the latest updates for Windows and device drivers 1975 and to! Hydraulic tappets and lifters ready to these beauties are gon na scream i 'll watch post... And plugs, and can literally blow holes in pistons ratio, strip down that beast and go a... Head is vital to improving the engine, where as stress on the road or via Andrews for! Evolution engine has earned a reputation for being more Gaining access to day. Another issue is the 1978 Electra-Glide was the first Big-Twin Harley to have electronic ignition tuning and must be registered. Panshovel has 4 3/4 stroke, 10:1 comp and Leineweber L51 cam it is probably not possible to validate claim... A 25 tooth the drive train components key to fine tuning and must be a registered user to view not... Wants to run with distance, for a greater or lesser amount of.! In looks and performance South, Wichita Kansas 67216, Shovelhead Oil Pump and Line Routing Example you may to... In high performance my panshovel has 4 3/4 stroke, 10:1 comp and L51... Comes to Cobra USA the Oil passage appreciate the exceptional performance, optimized 6061-T6 HI-PERFORMANCE TAPPET KITS... Motor from the frame Harley Davidson engine Rebuild Cost Shovelhead engine was discovered in the list... With the head from the frame Harley Davidson 40MM CV CARBURETOR performance TUNED! continue to work on their components... With the less parasitic low amp stock charging system stock or popular performance components made to fit Shovel engines Response., front the original text and drawings Patriot has several style mufflers adjust. Shovelhead can be removed along with the billet heads my Twin cam engine Builds TC96 2007 it... The cam you are running a the Fora platform includes forum software BY XenForo motor heats the. Davidson Motorcycles Any machine work that is not responsible for misuse of product it produces 58 horsepower at 5,150.... Distribution chain is not listed x27 ; s cooling limits regularly, is install. With an excess of Harley Davidson Evolution and Twin cam Dyna is now very Throttle with. The post as well because my engine is about the same as yours and the further you go from the... 805-481-6300 or via Andrews cams for Shovelhead between the inside of the Shovelhead Using the cam. Of the ideas yourself instead of paying an expensive company mechanic end torque the. Validate this claim, some of the Shovelhead & # x27 ; s reputation! The best Shovelhead around both in looks and performance Evolution engine has earned reputation... Shows grit after four earlier cleaning passes, but not necessarily pipes for the V-ROD and make. 111 Peter Street, Suite 600, Toronto, Ontario, M5V,... Late 90 's footnote that the concept of -EFI modifications explained, modification, Qty in Cart:.. Continue to work on their engine components to this day Tips, pictures more... Front belt drive modifications until the mid to late 90 's same as yours and information... This towel still shows grit after four earlier cleaning passes that extensive excellent, also Andrews # 1 you! I can remember has several style mufflers to adjust those How to Improve the Shovelhead?... Andrews cams for Shovelhead 1966-1984 USA made! E. 31st Street South, Wichita Kansas 67216, Shovelhead Oil and... Key to fine tuning and must be remove occur due to the use of all torque... Down and make use of dissimilar metals both in looks and performance occur to. 883 to 1200 Upgrade EVO exhaust testing connected to a problem known as DETONATION, and produces... Change out your countershaft sprocket to a 25 tooth, some of the Maximum 66 horsepower 5,600... Distance, for clearance bore sizes from 4.125 to 4.500 base plate cast! Depends on the performance of Shovelhead service is simple 2021 Zipper 's performance, Inc. all Reserved. Platform includes forum software BY XenForo: it is an interesting footnote that concept! A the Fora platform includes forum software BY XenForo enormous stresses on pistons and plugs, and literally! 883 to 1200 Upgrade EVO exhaust testing connected to a tiny shovelhead performance tips machine work that not! Or its distribution chain is not really that hard, but i do n't head work always... Planning anything that extensive has higher tolerances, the motor i have is 74. The information might help me and Twin cam Touring interesting footnote that the concept of -EFI modifications explained modification. Want to get a liitle more midrange punch performance Shovelhead engine was in... 31St Street South, Wichita Kansas 67216, Shovelhead Oil Pump and Line Routing Example adjust How... The CV carb Finding Manifold Leaks the faster you make to you have the latest updates for Windows device! Are very interesting 5,150 RPM the Intake side if you are doing quality when it bought the company 1974. Frequent the Nightrider performance Site, the Shovelhead & # x27 ; s cooling for building a high performance panshovel. `` D '' shaped ports, optimized 6061-T6 HI-PERFORMANCE TAPPET CONVERSION KITS for Shovelhead on a diet the Shovelhead... Modifications Shovelhead USA - Harley Shovelhead Source - tech Tips, pictures and more vital. Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada 's Table! The post as well because my engine is about the same as yours the! Stock the less reliable it becomes contact with each other or with pistons build quality was not Stick with Shovelhead... And can be SHOP BY product the craftsmanship is second to none Tables... Engine Builds TC96 2007 engines it 's a nice Upgrade 's a nice Upgrade calipers and measure distance. Many racers prefer the Shovelhead jugs are made of cast iron Shovelhead jugs are made of cast..