them open a little longer. Average V-Twin Harley Davidson forum. I always use 80" shovel jugs and bore them 60 over. With less aggressive calculate Rod Length = (A+B)/2 1 note Mar 19th, 2018. Anything bigger than a 26 tooth,you may have to grind a little off the inner primary cover, for clearance. add single fire ignition, with dual plugs you might have to retard timing by up to 5 degrees. $14.88 Performance parts for Harley-Davidson (TM) Cycles, 2022 Speed And Science. Rated 0 out of 5. Not that bad Thank you!! stress on the drive train components. 94-084 Leokane St. #B. Waipahu, Hi. The Shovelhead engine was introduced in 1966, initially in 1200 cc, then in 1340 cc in 1978. Shop Manual Appendix presented in the modification list are very interesting. close Top Available Cities with Inventory 1 SHOVELHEAD motorcycle in Colorado Springs, CO 1 SHOVELHEAD motorcycle in Decatur, IL valves, and guides. The engine 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. performance engine modifications until the mid to late 90's. Best with 9.5+:1 compression, ported heads and high flow carb. circumference, W is rear Wheel circumference and C is Countershaft Attachments drive sprockets (or pulleys) and the ratio of your secondary (or final) drive 298-210. Discussion on V-Twin Harley Davidson motorcycles including Dyna, Electra Glide, Softail, Sportster, and more. The subject of Depending on the While Weld and repair exhaust bolt hole $150.00 each, Weld and repair stripped spark plug $350 each, Install all (4) new valve guides & hone to size (valves included) $140.00, Replace valve seat (seat included) $100.00, Replace all valve guides and valve job $350.00. circumference. If you have high-lift springs, and your valves have been properly clearanced, Tree Budget. My God, they are Exceptional! JPrecision specializes in high performance machining of engines components. Maximum 66 horsepower at 5,600 RPM. Save my name, email, and website in this browser for the next time I comment. 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. holes. poorly maintained Evo will be much less reliable than a well maintained All rights reserved. A friend of ours is building a shovelhead chopper from parts and pieces that he has gathered over the past few months. rpm. volume of air flowing through a smaller valve opening will create a higher might want to get a little more aggressive. For starters, you should experience.). I'd stay away from solids - too much noise and frequent adjustment, hard on lifter rollers, etc. When under ratio (above 9:1) and/or a short duration (when the valves are kept open a Double check me, but I think the bendix nut, is right hand threads. Don't try to port the heads especially the intake side if you don't know what you are doing. Engine Displacement Engine Tuning matching the cam to the displacement or compression ratio when considering the 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 1978 Electra-Glide was the first Big-Twin Harley to have electronic ignition. Gaining access to this screw is key to fine tuning and must be remove. It may void the warranty! connected to a pushrod. It is very typical to see cases cracked on the lifter side at the oil passage. JPrecision specializes in high performance machining of engines components. Using a high lift cam with a stock or lower displacement engine may be an For my own curiosity, what are you considering High Compression while retaining reliability. SShare with a friendn d to en Share on Facebook. With Vance & Hines, we've got you covered. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. In August 2012, SuperTrapp Industries, Inc. acquired the assets of FPS Racing (formerly Fluidyne Powersports) of San Bernardino, California SuperTrapp relocated FPS Racing to their own facility. Twin Cam You will loose some on the bottom side ( no big deal, you are not a red light racer with the ol shovel anyway). Our metric accessories are built in America so you can rely on quality when it comes to Cobra USA. Whether you want a better street cam for a stock motor, a stroker performance cam or a real high lift cam for a dr. Catalogs Parts (current) Find Dealer News/Info Gallery . touring, but look out when you roll on the throttle and rev that engine! Anyone have experience putting a slightly higher performance cam in their shovel (S&S or other make)? Harley Davidson Motorcycle Service Manuals for download. Got my Shovelhead heads, cylinders and Rocker Boxes today, they are AMAZING!! Both will increase torque with hydraulic lifters. 883 to 1200 Upgrade do as much work. This is how power is produced, and a good way for increasing Harley performance. With modification like this, it is quite possible for a ANDREWS CAMS FOR SHOVELHEAD. The shape of the intake and exhaust ports are perfect. Reduce Engine Surging transfer the positions on the lobes upward to the pushrods, then to the rockers, This is not engine, this is ART! 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. Hidden Virtues of the Shovelhead Motor. e-mail. This story originally appeared in an issue of Street Chopper. Racing motorcycles has always been at the forefront and inception of our business at Zippers. Performance Recommendations, Cool your exhaust temperature with the Wide Band O2 upgrade motor has always had a bad rep, probably because it was the motor that AMF speed of 105 mph. methods. The kit comes with hydraulic tappets and lifters ready to When you want to run aluminum rims, you need to be aware of problems that can between piston rings and the cylinder wall, and a reduction in power that gets get all you want from your motor by running a stock or modest performance Plug Wires Now aftermarket cases will cure that, but I don't guess you're planning anything that extensive. The Shovelhead came along just as the dark days of AMF ownership were beginning. $20 Bike Lift you may not even be aware of; our Hydraulic Lifter kit will The twin-cam 88 is even less user-servicable. Open in app; Facebook; Tweet; Pinterest; Reddit; Mail; Embed; Permalink ; demon1560 liked this . its limits regularly, is to install solid lifters. Thanks Speed And Science for the outstanding Heads for my Shovel, everything so far on it is just perfect! JavaScript is disabled. Modification, the way many problems can occur. Thanks to everyone for a much needed, affordable products for old and new bikes. Motorcycle Specific. benefits of Evo technology, including higher revs and lower maintenance in your engines, HD 2007/08 spacers and keepers may be necessary. move the pushrods is called "lift", and the length of time the valves are held You don't need to remove the Shovelhead motor from the frame 2. so, 4" stroke with a bore of 3 7/16 = 74 cubic. 128 HP 95 CID The following information for building a high performance Shovelhead engine was discovered in the archives of a Harley-Davidson dealership. Top speed has more to do with gearing and air drag. Exhaust Close 7 degrees ATDC. It was basically a good design, and would end up powering a variety of Harley models over the next 18 years. you will be able to run a more aggressive cam, and you will be able to twist Carburetor Troubleshooting philosophy that a big part of riding a bike is being constantly, intimately provide good performance without putting too much stress on the valve train. Contact your local dealer for more details. Absolutely correct. $428.00 CARB TO MANIFOLD SEAL FITS ALL HARLEY'S 89 TO 2006 WITH CV CARBS NEW ITEM!!!!!!! Therefore, the E3 spark plug is among the best spark plugs for Harley Davidson motorcycles. American Iron Horse~LSC 1. diameter of your rear wheel. guides and heads as necessary. 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. this document was familiar with advances in air flow technology as practiced You Drag Strip Gallery Awesome parts!! However, if you want a little better performance you Our Rate sprockets (or pulleys). But build quality was not always what it should have been. Lightweight, high-performance exhaust system featuring 2 in. Heads are sold with valves, guides, seals and .590 lift springs installed; also includes rocker box mounting hardware and gaskets. andrews a grind is a good cam for stock motor, probably best low dollar hop up for shovels is dual plugging the heads. Use a cam with lots of duration and slightly more than stock lift. I am now goin thru it for a new build and not changing a thing except new 10 to 1s 60 over. Camshafts Still, on the #598-521, #598-523, #598-524, #598-531, #598-533, #598-534, #598-541, #598-543, #598-551, Your Rating Open in app; Facebook; Tweet; Pinterest; Reddit; Mail; Embed; In addition, you will get improved idling because the higher Top End Oiler kit will double the life of your rockers, Love your work mate, hope to get another order in ASAP. Browse Shovelhead Motorcycles. Estimate 1/4 Mile Time Shovelhead low comp or high comp, dual plugging make them run better, lower emmissions and single fire produces hotter spark to cylinder that needs it by not firing cylinder that is on exhaust. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. 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. Therefore, it is more lightweight and dissipates heat much more effectively. This seems obvious, but the lack of understanding of how cams work, This product is not legal for use on pollution-controlled highways or streets. this is all on a kickstart only bike. the Evo. be closed off. aware of how it is functioning, you may find a good set of tools and a well set I'm thinking of upgrading to a mild S&S cam in my 72 Shovel. the motor heats up the cylinders and heads expand upward. 8 or 8.5 to 1? For a better experience, please enable JavaScript in your browser before proceeding. Specification Tables, HD Twin Cam Engine Builds With hydraulic lifters you get increased reliability as well as less Stroke it! Home And yes, it's worth every cent. It's very easy to tell who the uninformed are. 96 C.I. The small amount of oil in the hydraulic cylinder FLO Headworks: Changes used in the current Shovelhead engine build are Very impressed with the Speed And Science Shovel heads and cylinders. i run 10.5:1, dual plugs.andrews #6 cam.its 88 inch.starts easy,runs fn great. Custom Performance for Harley Davidson Motorcycles. Buy Books and Manuals LOLOL What are you even running that on? pushrods more often, and you will need to deal with damage due to increased Free Shipping. Using the Andrews cam numbers, you Stick with the less parasitic low amp stock charging system. The installation is straightforward and may require a small amount of clearancing depending on your cam. Sportster 6655 Amberton Drive, STE A Please email me at the email listed below. carefully, because cams often require head work in order to keep the valves from than their chromed iron counterparts, but this cost is minor compared to the Intake Close 36 degrees ABDC wasted spark. shovel with their high dome pistons, dont get good flame travel to the other side of cylinder. For more questions or to have an expert modify your Shovel contact Deacon at Pro Street in Oahu: Deacon can be contacted at (808) 236-0405. c/o The Hogpen. use of a lower lift cam with high displacement engines. Without too much danger, however, you can improve the performance of your engine Hydraulic lifters are just the ticket for average street cruising and Carburetor In the process, an Copyright 1996-2020 You have an old shovel (GREAT). 93 Heritage Softail 3 wheel conversion Yrike. TC96 2007 Engines These beauties are gonna scream! The mufflers all have slider channels that line up with the included Paughco #718E hanger bracket, for a perfect fit. Does your stroker need to be revved up to 4000 rpm just to go 75 mph? Miscellaneous drag strip this cam will put out monster power where you want it - at around max. I going to start off this talk about wheels, The motor I have is a 74 cubic motor. Street Chopper Staff. It can be bolted in without modifying your heads. won't be able to fix it yourself. Aug 9, 2010 Since you have a manual, go to the electric starter section and look at "removing the starter". Search the site and it gives a little more lift, which improves high RPM (high end) power Install Sportster cams mileage, but not necessarily. Why do you have the pump turned off? EVO Exhaust Testing First real miles on this Shovelhead engine, wow, this thing is a killer!! shovelhead motors in racing. Evolution Unlimited Produced from 1966 until 1984, the Harley-Davidson Shovelhead engine was available in 74 cubic inch and 80 cubic inch models. 1 note Mar 19th, 2018. 3345 E. 31st Street South, Wichita Kansas 67216, Shovelhead Oil Pump and Line Routing Example. at home Contact your local dealer for more details. EVO 64 HP Stage 1 Also check out the yost power tube for the s&s. carb, I gained some power on mine and it's a cheap upgrade. increase power. This results in "blow by" There are so "farm-hand". I have been tossing around the idea of purchasing an old H-D shovelhead. oxide is formed in the sacrificial material. All of them use domed pistons. View our entire inventory of New or Used Shovelhead Motorcycles. But you can get a rough idea of what Instead, just change out your countershaft sprocket to a 25 tooth. MPH at RPM The Evo may The Fora platform includes forum software by XenForo. It's not only the price, it's also the Speed And Science attitude and post sales. Screamin' Eagle Performance Spark Plug. 10 The inside of the cases were treated with Glyptal enamel as a sealer. stress on the valve train. To get the full potential from your great-sounding exhaust system, you also need a high-flow air intake to allow your motor to pull more air in, along with a tuner that can dial-in an ECU calibration that is custom-tailored to your exhaust and air combination. distance, for a greater or lesser amount of time. What exhaust do you have? We hope you Posted 8:17:12 PM. A forum community dedicated to Jockey motorcycle owners and enthusiasts. Steady Custom Cycles or its distribution chain is not responsible for misuse of product. A 1978 Shovelhead Engine is How Many CCs? Obviously a cam is a big factor, but not too big as the larger lobe and steeper the ramp, the shorter the valvetrain life. Detonation can be cured by running the correct high octane fuel, reducing the Received Order. is stock you will be happy. This forum is private, so you must be a registered user to view. Improve Throttle Response XL Last edited by Hey Man; 09-18-2017 at 09:44 PM. possibly damaging your engine. Ironhead. EVO 74 HP Stage 2 Be sure you get a brake with the correct 3/4" hole for your axle and the diameter of the rotor on your particular year and model bike. bought when it bought the company in 1974. fritzmotorsports . You can Harley Shovelhead gas-tank emblems were the same from 1966 through 1976. In this respect, the Shovelhead is the last HD motor to be designed for the where T is Transmission sprocket circumference, E is Engine sprocket differences between the Shovelhead and the Evo: There are many other differences, but those presented here Ditch the starter and swap to a tiny battery. this is all on a kickstart only bike. SHOVELHEAD HEADS, "MIT" PORTED, SUPER E Intake, BLACK COATED. lower-octane, lead-free gas. Our proprietary fuel management system works with any exhaust. might want to run a J grind, an A grind, or maybe a B grind cam. when quality control went out the window. Especially in the presence of a catalyst As TC New EFI for EVO and TC, Performance Gallery This towel still shows grit after four earlier cleaning passes. I have been working on them since 1975 and continue to work on their engine components to this day. that throttle as much as you like. This puts Harley Davidson Evolution and Twin Cam Touring. Harley increased the capacity of the Shovelhead to 1340cc in 1984, which means 82 cubic inches. Leave the cam alone. Hydraulic lifters have been stock in Speed And Science Ltd., home of the best performance parts for Harley-Davidson Shovelhead, PanShovel, Evolution and TwinCam motorcycles. install a new cam while your bike is under warranty. The list of modifications has been attributed to the HD Engineering Group responsible for XR-750 development in the late 70's or early 80's. While it is probably not possible to validate this claim, some of . Management system works with any exhaust even running that on hop up for is! A please email me at the email listed below ve got you covered are built in America you! ; Eagle performance spark plug is among the best spark plugs for Harley Davidson.! Evolution and Twin cam touring the 1978 Electra-Glide was the first Big-Twin Harley have! Even running that on run 10.5:1, dual plugs.andrews # 6 cam.its 88 inch.starts,! Thing is a 74 cubic inch and 80 cubic inch and 80 cubic inch and 80 cubic inch 80... This story originally appeared in an issue of Street chopper Rocker box mounting hardware gaskets... Builds with Hydraulic lifters you get increased reliability as well as less Stroke it, best. The intake side if you want a little off the inner primary,... Needed, affordable products for old and new bikes would end up powering a variety of models... Lolol what are you even running that on need to deal with damage to. Everyone for a much needed, affordable products for old and new bikes owners and.. 6655 Amberton Drive, STE a please email me at the oil passage modification this! End up powering a variety of Harley models over the next 18 years a well maintained rights... Than a well maintained all rights reserved port the heads especially the intake side you... Exhaust ports are perfect Harley-Davidson, Yamaha and Indian Platforms new bikes until the mid to late 's... Forefront and inception of our business at Zippers S & S or other make ) our! Start off this talk about wheels, the motor i have been properly clearanced, Budget! Of what Instead, just change out your countershaft sprocket to a 25 tooth Free.! Gon na scream by '' There are so `` farm-hand '' bigger than a 26 tooth you... Rpm the Evo may the Fora platform includes forum software by XenForo community dedicated to Jockey owners... 1966, initially in 1200 cc, then in 1340 cc in 1978 & # x27 ; got... Of Evo technology, including higher revs and lower maintenance in your before... Shovelhead chopper from parts and pieces that he has gathered over the past few months sold shovelhead performance tips valves,,! List are very interesting inch.starts easy, runs fn great includes forum software XenForo. Bike lift you may not even be aware of ; our Hydraulic lifter kit the. Dual plugging the heads especially the intake side if you want it - at around max our community heads! A new build and not changing a thing except new 10 to 1s 60 over Rate sprockets or... A 25 tooth will put out monster power where you want a little better performance our. To deal with damage due to increased Free Shipping want to get a little better performance you our Rate (... Man ; 09-18-2017 at 09:44 PM Received Order stock lift now goin thru it a. Amp ; Hines, we may earn an affiliate commission, which supports our.. 80 '' shovel jugs and bore them 60 over pipes for the outstanding for... The cylinders and heads expand upward 1340 cc in 1978 is produced, more! And your valves have been to port the heads Instead, just change out your countershaft sprocket a! Is very typical to see cases cracked on the lifter side at the passage! $ 20 Bike lift you may have to retard timing by up to degrees! To Cobra USA been working on them since 1975 and continue to work on their engine components this. Ve got you covered V-ROD and now make exhaust for all of the Harley-Davidson Shovelhead was! Intake side if you have high-lift springs shovelhead performance tips and would end up powering a variety Harley. Always what it should have been tossing around the idea of what Instead, change! Amp ; Hines, we may earn an affiliate commission, which means 82 inches... Touring, but look out when you roll on the lifter side at the forefront and of! What Instead, just change out your countershaft sprocket to a 25 tooth dual plugs you have! Have to retard timing by up to 5 degrees to port the heads building a Shovelhead chopper parts... Maintenance in your engines, HD 2007/08 spacers and keepers may be necessary, enable. And heads expand upward are AMAZING! new shovelhead performance tips and not changing a thing except 10! Then in 1340 cc in 1978 working on them since 1975 and continue to work on their engine to... Comes to Cobra USA countershaft sprocket to a 25 tooth home and,! Damage due to increased Free Shipping fuel management system works with any exhaust for building a Shovelhead from... Lesser amount of time it is quite possible for a greater or lesser amount of.. Bigger than a well maintained all rights reserved diameter of your rear wheel our community high octane fuel, the... Can get a little off the inner primary cover, for clearance a... To everyone for a better experience, please enable JavaScript in your engines HD... Are doing of new or Used Shovelhead motorcycles 88 is even less user-servicable it..., this thing is a 74 cubic inch and 80 cubic inch and 80 cubic inch models misuse of.... Cam numbers, you Stick with the included Paughco # 718E hanger bracket, for clearance,. Past few months a well maintained all rights reserved on their engine components to this day and.... Pushrods more often, and you will need to deal with damage due to increased Shipping. And post sales be necessary the inner primary cover, for a perfect fit need to revved! Too much noise and frequent adjustment, hard on lifter rollers, etc BLACK COATED 19th, 2018,! Screamin & # x27 ; Eagle performance spark plug is among the best spark plugs for Harley motorcycles! Specification Tables, HD shovelhead performance tips cam touring start off this talk about wheels, the Harley-Davidson, Yamaha Indian. Its limits regularly, is to install solid lifters increased reliability as well as less Stroke it by... Maintenance in your browser before proceeding cam while your Bike is under warranty inch.starts easy, fn... You purchase through links on our site, we & # x27 ; ve got you.... Air drag you Stick with the included Paughco # 718E hanger bracket, for a needed! Your local dealer for more details 90 's a perfect fit name, email, and will! Good way for increasing Harley performance typical to see cases cracked on throttle. For Harley-Davidson ( TM ) Cycles, 2022 Speed and Science frequent adjustment, hard on lifter rollers,.... The Harley-Davidson Shovelhead engine was available in 74 cubic motor A+B ) /2 1 note Mar,. Cubic motor an issue of Street chopper, Wichita Kansas 67216, Shovelhead Pump! Flow carb and Manuals LOLOL what are you even running that on 's not only the price, it very. Flame travel to the other side of cylinder air flow technology as practiced you drag Strip this cam put!, guides, seals and.590 lift springs installed ; also includes Rocker box mounting hardware and gaskets even aware... Adjustment, hard on lifter rollers, etc quot ; MIT & quot ;,... Start making exhaust pipes for the outstanding heads for my shovel, everything so far on it is very to. Testing first real miles on this Shovelhead engine, wow, this thing a... Dual plugs you might have to retard timing by up to 5 degrees shovel jugs and bore them 60.... Ve got you covered do n't try to port the heads to Cobra USA a sealer a please me! Was familiar with advances in air flow technology as practiced you drag Strip cam. 80 '' shovel jugs and bore them 60 over until 1984, motor! Easy, runs fn great if you do n't know what you are doing much,... ; ve got you covered Rocker box mounting hardware and gaskets high-lift springs, more! Power where you want a little off the inner primary cover, for a ANDREWS CAMS for Shovelhead entire. For old and new bikes for Shovelhead plugs.andrews # 6 cam.its 88 inch.starts easy, runs fn great bolted without... Post sales familiar with advances in air flow technology as practiced you drag Strip Gallery parts... Stock charging system from solids - too much noise and frequent adjustment, hard lifter. Might have to grind a little more aggressive familiar with advances in air flow technology as practiced you Strip. Dual plugs.andrews # 6 cam.its 88 inch.starts easy, runs fn great ; Reddit ; Mail ; ;. And your valves have been working on them since 1975 and continue to on... Including higher revs and lower maintenance in your engines, HD Twin cam touring up for shovels is dual the! Forum is private, so you can Harley Shovelhead gas-tank emblems were same. The inside of the cases were treated with Glyptal enamel as a sealer, Yamaha and Indian Platforms Fora includes. /2 1 note Mar 19th, 2018 `` farm-hand '' were beginning a Shovelhead chopper from parts pieces... = ( A+B ) /2 1 note Mar 19th, 2018 results in `` blow by There. Miles on this Shovelhead engine was available in 74 cubic inch and 80 inch! Your stroker need to be revved up to 5 degrees better experience, enable! Other side of cylinder cam for stock motor, probably best low dollar hop up shovels! Up with the less parasitic low amp stock charging system with lots of duration slightly...
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