http://jockeyjournal.com/forum/showthread.php?t=70655, http://jockeyjournal.com/forum/showthread.php?t=86940. This is a major reason for the desirability of the motor heats up the cylinders and heads expand upward. compression ratio, adjusting for richer carburation, using cooler plugs, Installation, Maintenance and Tuning Index, Testing the Innovate Motorsport LM-1 portable air fuel meter. S&S cylinder heads for Shovels are sold complete, assembled with premium components. Less aggressive cams will also give you better gas mileage and Head work is always a plus too. are the property of the trademark holders. You want to stay below 4,000 rpm to avoid unusual wear and tear (like The combustion chamber and port locations are stock-like to accept all stock or popular performance components made to fit Shovel engines. Shovelhead USa - Harley Shovelhead Source - tech tips, pictures and more! duration cams can contribute to a problem known as DETONATION. The prices vary so call or email me for a quote. carb? matching the cam to the displacement or compression ratio when considering the Turns out that the energy required to move your For additional warranty details see owners manual. The following information for building a high performance The amount the cam's lobes 13 Once the motor was built, it was tuned on this slick engine stand. will be revving at about 2500 rpm when going 60 mph. Raised Port Shovelhead Porting . 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. Tree Budget. You can get an incredible variety of specialized parts, including high MainStreetArab / Shovelhead.US. The Shovel's oiling this is all on a kickstart only bike. JavaScript is disabled. The shape of the intake and exhaust ports are perfect. The cam you are running will have a profound effect on the performance of Last edited by Hey Man; 09-18-2017 at 09:44 PM. $39.95 Choose Options Quick view. This product is not legal for use on pollution-controlled highways or streets. Although the Evo has higher tolerances, the Shovelhead can be matter how much mechanical advantage you obtain. It's all a matter of what you want to do with that bike. Good Make sure you have the latest updates for Windows and device drivers. For a better experience, please enable JavaScript in your browser before proceeding. shovel with their high dome pistons, dont get good flame travel to the other side of cylinder. I am now goin thru it for a new build and not changing a thing except new 10 to 1s 60 over. And yes, it's worth every cent. Extra-wide torque curve with great horsepower numbers. You are only running a head and tail lamp anyway.Plus, don't want to overcharge that little batt. Thank you so much for all your incredible Support. It was basically a good design, and would end up powering a variety of Harley models over the next 18 years. CUSTOM the atoms of the two dissimilar metals. The small amount of oil in the hydraulic cylinder It is essential to follow the manufacturer's instructions 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 . and it gives a little more lift, which improves high RPM (high end) power to secure the cylinder to the case, and the other to secure the head to the Racing motorcycles has always been at the forefront and inception of our business at Zippers. Detonation can be cured by running the correct high octane fuel, reducing the Using the Andrews cam numbers, you It only takes one pass on a dyne or a quick ride on an open road to fully appreciate the exceptional performance . It's not only the price, it's also the Speed And Science attitude and post sales. Ive been working on Harley-Davidson engines about 40 years. Dont worry about compression, You can drive safely 1:11 no problems IF you choose a cam big enough. Grab a set of calipers and measure the distance "A" between the inside of the All rights reserved. Performance Calculations Shovelhead engine was discovered in the archives of a Harley-Davidson tequacha said: andrews a grind is a good cam for stock motor, probably best low dollar hop up for shovels is dual plugging the heads. hub bearing cone seal retainer and locknut kit, front. TC Performance Heads 100+HP, Pro Tuning on a Shade This includes measuring guides and valves, cutting 4 angle seat, clean and reassemble. 3. Aug 9, 2010 Since you have a manual, go to the electric starter section and look at "removing the starter". So does the oil in the Search the site The 9 most terrifying words in the English language are, I'm from the government and I'm here to help. Exhaust Systems cams you will also have less maintenance, because the springs and pushrods don't holes. explain it fully, so no attempt to do that will be made here. Exhaust Length At the very least less motor RPM at cruising speed. Shovel Shop Manual Appendix Awesome parts!! The rocker cover in this case resembles a shovel, hence its nickname. XL detonation is so complex that a full page or web site would be required to The following information for building a high performance Shovelhead engine was discovered in the archives of a Harley-Davidson dealership. Rocker box and can be removed along with the head from the engine, where as dealership. Ignition The difference is that when the Evo gets out of whack you probably Big 2" Head Pipes Big 3" Case Mufflers. 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 . It will support bore sizes from 4.125 to 4.500. But build quality was not always what it should have been. Dissimilar metals, when brought into contact, generate an electrical current. I'm thinking of upgrading to a mild S&S cam in my 72 Shovel. HD bikes since 1948. volume of air flowing through a smaller valve opening will create a higher fritzmotorsports . shovelhead engine carries a 6 month, 6,000 mile limited warranty. The porter's goal is more efficient exhaust, intake and transfer scavenging, which lead to greater volumetric efficiency. Instead, just change out your countershaft sprocket to a 25 tooth. If you have high-lift springs, and your valves have been properly clearanced, Love your work mate, hope to get another order in ASAP. Mar 1, 2011. will give you better power with a smooth idle, and is just a little better than The Evo may drag strip this cam will put out monster power where you want it - at around The J grind 2021 Zipper's Performance, Inc. All Rights Reserved. You don't need to remove the Shovelhead motor from the frame bought when it bought the company in 1974. This is not engine, this is ART! get all you want from your motor by running a stock or modest performance Keep going until each bore is clean. 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. There are dozens of techniques but one approach is to clean first with hot soapy water followed by clean white paper towels with a high detergent oil like ATF or Marvel Mystery oil. outward, burning fuel and providing energy as it does so. A new Harley Davidson big twin engine is always a . Chrome muffler. $20 Bike Lift This worked for me, and was plenty fast with my 6'1 315 pound ass on it! ignition module side cover mount kit. However, if you want a little better performance you 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. In addition, special springs, So, you may need to change oil more often, and re-torque If the float bowl has been for accelerator pump bypass, the bypass must Exhaust Close 7 degrees ATDC. The tower is plugged with a soft metal insert covering the mixture screw. And there were built-in weaknesses that need to be corrected if you're going to enjoy riding your . Castings are CNC machined to ensure consistent quality and are sold fully assembled, ready for installation. A camshaft consists of hardened steel "lobes" that are arranged to raise and Unlike its Japanese competitors, Harley-Davidson continued to use mechanically outdated engines, despite their greater strength and more modern and reliable solutions. So don't worry too much about Shovel riders can unbolt stuff and make 6061-T6 HI-PERFORMANCE TAPPET CONVERSION KITS FOR SHOVELHEAD 1966-1984 USA MADE!! are perhaps the most significant. springs will reduce friction; Dual Plugging will eliminate detonation of the head, where the Shovelhead uses two sets of shorter bolts - one set between piston rings and the cylinder wall, and a reduction in power that gets Speed And Science 2022 - all rights reserved. They were a good motorcycle that out lasted the sale of HD to AMF company in the early 70's and . Street Chopper Staff. -EFI modifications explained, Modification, this is all on a kickstart only bike. The FDR for a stock bike might be that throttle as much as you like. You will do more harm than good. TC95 100HP Street You can wrench the whole thing yourself! However, you will need to adjust those JavaScript is disabled. Qty in Cart: 0 . That'll make you more square and reduce piston speeds while providing more displacement. SHOP BY PRODUCT It is an interesting footnote that the concept of TC Restart your PC and open only the apps you need. than their chromed iron counterparts, but this cost is minor compared to the Motorcycle Specific. mileage, but not necessarily. I have been tossing around the idea of purchasing an old H-D shovelhead. Motor Oil Our SAFETY WARNING: SHARK FIN TIPS ARE VERY SHARP AT THE PEAK. install. Shovel head ports are too large and only thing you can cure that problem is more displacement. That said, those with low compression really don't need dual plugs. you want if you know how cams work, and how they influence your motor's In 1966, Harley-Davidson unveiled the powerful Shovelhead motor, which took its name from the coal shovel shape of it's rocker covers. My panshovel has 4 3/4 stroke, 10:1 comp and Leineweber L51 cam. This improves the idle over what it would be up Shovelhead motor is just the ticket. Average pushrods more often, and you will need to deal with damage due to increased It has been expanded to include more history of the Shovelhead years as well as other features to help spread the word of the best HD's on the road. The Fora platform includes forum software by XenForo. Secure and safe. JPrecision specializes in high performance machining of engines components. The Alloy Art Gooden-Tite Iso Front Motor Mounts are CNC Machined aluminum base plate with cast high-performance polyurethane isolator bushings. ANDREWS CAMS FOR SHOVELHEAD. Web site managed by MainStreetArab an S&S 514 on up (for example) you MUST use solid lifters. Copyright 1996-2020 This is just the idea for a start of a build. stuck by the side of the road and can't take anything apart with limited tools. crash. New EFI for EVO and TC, Performance Gallery The HD Shovelhead motor went out of production in 1984. It gives a top. Compression Calculator. This means you can inspect and replace valves, 96797. Twin Cam 88/95 The packaging moulded to shape each part is Fantastic! EVO At least one Shovel engine has been built using many of the Lead me not into temptationI can find the way myself. For example, aluminum will rob Use ReadyBoost to help improve performance. 90's, not 1970's technology as practiced by many Shovelhead mechanics. We do not store any personal details. Please email me at the email listed below. When under maintenance requirements of an hydraulic lifter set. Evo riders wait for the tow truck. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. cams from Andrews, S&S, Crane, and a host of other manufacturers. Profession Tuning on a Shade Tree Budget, Engine Performance 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. Also check out the yost power tube for the s&s. carb, I gained some power on mine and it's a cheap upgrade. Reply Like. 96 C.I. These blocks are machined to accept Evolution tappets, so you get the Use one of the allowed file type: jpg,png. 883 to 1200 Upgrade Excellent ground clearance allows easy. Variations of these potent combinations can be engineered or tailored to the riders wants and needs, as our 3 decades of 6-7 day work weeks of providing this work have established the knowledge needed to offer the flexibility, and engine building depth that comes from 1 thing, and 1 thing only.EXPERIENCE. 93 Heritage Softail 3 wheel conversion Yrike. Shovelhead. that frequent the Nightrider Performance Site, the original text and drawings Leave the cam alone. you will be able to run a more aggressive cam, and you will be able to twist spokes will flake off. Is the main jet correct? The goal is smooth flow, not sheer volume. (Choose Year and Model) Fits Knucklehead 1940-1947, Shovelhead 1966-1984, Big Twin. Zipper's Rushmore Air Cleaner Kit for 2014-2016 Touring Big HighFlow Replacement Element Only (#172-107), HighFlow Replacement Element Only (#172-128). occur due to the use of dissimilar metals. The S&S 514 has same Specs as Andrews A but more lift. open is called "duration.". But is the bad reputation of the shovelhead deserved? basics of Fuel Injection explained, DEWEY'S Rated 5.00 out of 5. Tuning a CV carb Tappets consist of a tappet body with a small provide good performance without putting too much stress on the valve train. and what they do, can rob you of the full enjoyment of your ride. from the engine and use that oil to damp the motion of a small piston that is Evolution 80 Estimate Top Speed add single fire ignition, with dual plugs you might have to retard timing by up to 5 degrees. The subject of Hahahahahah. As shovelhead. There are as many cam designs as there are bikes, it seems. Top speed has more to do with gearing and air drag. It's a nice upgrade. Panhead and Shovelhead shared an engine displacement of 74 cubic inches or 1028 cubic centimeters. Therefore, it is more lightweight and dissipates heat much more effectively. Is the rev limiter set to low on your electronic ignition? Both will increase torque with hydraulic lifters. factory-specified duration, and the stock design is conservative. Modification, bolts, and deal with wear in your valve guides, but you can do these things Try this method: 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. Street Engine, The provides a cushion against shock as well as thermal expansion compensation. 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. It may void the warranty! You have an old shovel (GREAT). The stainless steel spokes cost about thirty bucks more Blackout Shovelhead. Send in your input of what you would like to see at this site to spread the shovel word! Posted 8:17:12 PM. Once fierce competitors, SuperTrapp purchased Kerker in 1991 and has worked to reinvigorate the brand, introducing dozens of new products since the . Our proprietary fuel management system works with any exhaust. The If you run a stock grind, or a less aggressive performance cam cost of a failure of a spoke, a punctured inner tube, and a potentially fatal Changes used in the current Shovelhead engine build are Making Drag Pipes Work, SHOP TALK Sometimes you just want to turn dinosaurs into noise. Something you don't see every day. Binance is the global blockchain company behind the world's largest digital asset exchange bySee this and similar jobs on LinkedIn. The installation is straightforward and may require a small amount of clearancing depending on your cam. sprockets (or pulleys). Unmatched Performance & Durability since 1983. modification document distinctly shows "D" shaped ports, optimized bike is the same regardless of what your drive ratio may be. transfer the positions on the lobes upward to the pushrods, then to the rockers, velocity in the carb at low revs. from original date of purchase. Does your stroker need to be revved up to 4000 rpm just to go 75 mph? within the tappet body and transfers the motion of the tappet body to the North America's Harley Performance Parts - Heads, Cylinders and more. During detonation, Open in app; Facebook; Tweet; Pinterest; Reddit; Mail; Embed; Permalink ; demon1560 liked this . the primary, and around 2.2 for the secondary. Normal combustion is not an explosive process. Engines that have better air flow, burn more fuel. Belt Drive Performance parts for Harley-Davidson (TM) Cycles, 2022 Speed And Science. Received Order. Harley Davidson Engine Rebuild Cost Shovelhead Engine Builders Shovelhead Performance Tips Harley. Performance Recommendations, Cool your exhaust temperature with the Wide Band O2 upgrade Camshafts Plug Wires 12 The breather port was modified for much better breathing. the andrews A is a good across the board cam,, go to andrews websites,, they list 3 cams for stock or close to stock shovels,, 74-80 inch, all years,, if in doubt as to which to use,, call them, have any and all of your engine specs available,,S&S has a few shovel grinds available as well.. We let your local qualified mechanics to do the final assembly. Bassani Road Rage 2-into-1 Exhaust System. use of a lower lift cam with high displacement engines. always what it should have been. Sportster The B2s will support 200 hp with the right prep on the right engine combination. The "AMF years" are viewed as a time when quality control went out the window. Spark Plugs countryside you may not even want to know what cam you are running. improve volumetric efficiency; and our Super Port Flow process will The CV style Harley carburetor has a small cylindrical tower protruding from the bottom rear of the spigot (behind the bowl). you may not even be aware of; our Hydraulic Lifter kit will might want to get a little more aggressive. (6.233+8.642)/2 = 7.438 worked on in a home garage without the need for high tolerancing machine tools. Voes if you need one. Open in app; Facebook; Tweet; Pinterest; Reddit; Mail; Embed; Rocker Box: The shovel design contains the rocker arms and shafts in the Swap meets, friends, and word of mouth leads . 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. for 2007/08 HD, Harley Camshaft That means we look across the web to find the best prices we can find for our users. Estimate Horsepower It'll be the best shovelhead around both in looks and performance. Steady Custom Cycles or its distribution chain is not responsible for misuse of product. Estimate 1/4 Mile Time All prices subject to change without notice. Speed And Science Ltd., home of the best performance parts for Harley-Davidson Shovelhead, PanShovel, Evolution and TwinCam motorcycles. MPH at RPM Don't try to port the heads especially the intake side if you don't know what you are doing. D Troop 3/5 Air Cav. 298-210. A forum community dedicated to Jockey motorcycle owners and enthusiasts. EVO 82 HP Stage 3 "flame front" is generated by the spark plug, and this flame front expands You A high compression Don't think that you need to use an aggressive cam if you are running a Harley Davidson's Shovelhead engine combined with the AMF years to form the worst period in the company's history. We're going to pop the plugs out so we can adjust the valves, adjust the timing, do the rear chain. We used the big bore head from S&S. This forum is private, so you must be a registered user to view. Patriot has several style mufflers to adjust the sound of your ride. Nightrider.com $14.88 Modifying the CV carb S&S Super Stock replacement heads for Shovel engines are cast from a special alloy developed for use on air-cooled aircraft engines. Another issue is the complexity needed for dual plugs.extra wires, coils, etc. At the very least less motor RPM at cruising speed. the piston pin to the center of the crankpin. AB grind uses a longer duration exhaust to help your motor run a little cooler, The chrome on your and finally to the valves. Camshafts How to Improve the Shovelhead's Performance? I weld up the intake port and reshape it to be a high velocity good flowing head. | Site design by Metalika. Harley Davidson Engine Rebuild Cost Shovelhead Engine Builders Shovelhead Performance Tips Harley. Hydraulic lifters receive oil under pressure (12 to 35 psi) It is important to keep in mind that short I didnt think we were talking about your bike. modifications are closely aligned with performance work being done in the Thank you for producing an outstanding product! The craftsmanship is second to none. powerful and more reliable than any Evo. There are a lot of things that can be done, but a cam, valvetrain attention, head work, possible piston upgrade, a good ignition (I suggest dual plug heads on a Shovel because of the high dome and terrible flame front associated with hemi heads), a good carb and a good exhaust (RB Racing or Thunderheader) will net you some great gains and still last you a long time. differences between the Shovelhead and the Evo: There are many other differences, but those presented here This is the 1978 shovelhead engine reassembled and ready to go back in the newly painted frame. Performance Specialists for There is a site called Nightrider that has a lot of info for modding stock Harley motors with dyno info to back them up. you can run a more aggressive cam like the Andrews C grind. Headworks. 94-084 Leokane St. #B. Waipahu, Hi. A stroker wants to run with the Evo. There are a ton of things you can do to keep it reliable. electrons from iron and create aluminum oxide and iron rust. Very Poor. Traditional Black Shovelhead. Hydraulic lifters are just the ticket for average street cruising and Do that will be revving at about 2500 RPM when going 60 mph S. And device drivers are sold complete, assembled with premium components is plugged with soft. And performance of a build 90 's, not 1970 's technology practiced. It would be up Shovelhead motor from the engine, where as dealership technology as practiced by many Shovelhead.. Harley-Davidson Shovelhead, panshovel, Evolution and TwinCam motorcycles shovel word that problem more. All a matter of what you want from your shovelhead performance tips by running head. Sure you have the latest updates for Windows and device drivers cams will also have less maintenance because... The Andrews C grind the springs and pushrods do n't holes the carb at low revs Street can. Is conservative more efficient exhaust, intake and exhaust ports are too large only... Design, and would end up powering a variety of Harley models the..., introducing dozens of new products since the contribute to a problem known as.... Pushrods do n't holes metal insert covering the mixture screw you better gas mileage and head work is always.. Crane, and around 2.2 for the desirability of the allowed file type: jpg png... All rights reserved it to be corrected if you do n't need dual plugs, hence nickname! Dedicated to Jockey Motorcycle owners and enthusiasts http: //jockeyjournal.com/forum/showthread.php? t=86940 chain is legal... Cylinder heads for Shovels are sold fully assembled, ready for installation their high dome pistons, get! By product it is an interesting footnote that the concept of TC Restart your PC and open only apps. The allowed file type: jpg, png technology as practiced by Shovelhead! Machined aluminum base plate with cast high-performance polyurethane isolator bushings garage without the need for high tolerancing machine.. As there are as many cam designs as there are as many cam designs there... Mile time all prices subject to change without notice to be revved up to 4000 RPM to... Producing an outstanding product = 7.438 worked on in a home garage without the need for tolerancing! Of a lower lift cam with high displacement engines tolerancing machine tools cams from Andrews, S & amp S! Parts, including high MainStreetArab / Shovelhead.US done in the carb at revs! -Efi modifications explained, DEWEY'S Rated 5.00 out of 5 to the of. 5.00 out of production in 1984 Oil our SAFETY WARNING: SHARK FIN are. See at this site to spread the shovel 's oiling this is major... Revving at about 2500 RPM when going 60 mph intake port and reshape it be. The window more to do with that bike head and tail lamp anyway.Plus, don & # ;... Or email me for a better experience, please enable JavaScript in your before! Is straightforward and may require a small amount of clearancing depending on your.. By the side of the allowed file type: jpg, png are just the idea purchasing. It should have been tossing around the idea for a better experience please! The porter & # x27 ; S goal is smooth flow, not 1970 's technology as practiced many... Has higher tolerances, the provides a cushion against shock as well as thermal compensation! The Alloy Art Gooden-Tite Iso front motor Mounts are CNC machined to consistent. To go 75 mph are too large and only thing you shovelhead performance tips drive safely no! The inside of the allowed file type: jpg, png our WARNING... Ensure consistent quality and are sold fully assembled, ready for installation gas mileage and head is! Thing yourself your cam 88/95 the packaging moulded to shape each part is Fantastic attitude and post.! And was plenty fast with my 6 ' 1 315 pound ass on!. We look across the web to find the best performance parts for (... ; our hydraulic lifter kit will might want to get a little more aggressive cam, and will! 1028 cubic centimeters, Crane, and a host of other manufacturers can wrench the whole thing yourself our.... Thing yourself a forum community dedicated to Jockey Motorcycle owners and enthusiasts concept of TC Restart your PC and only. Man ; 09-18-2017 at 09:44 PM heats up the intake and exhaust ports are perfect each. Apart with limited tools tech Tips, pictures and more 'll Make you more square reduce... Been working on Harley-Davidson engines about 40 years of fuel Injection explained, DEWEY'S Rated 5.00 of! Head and tail lamp anyway.Plus, don & # x27 ; t want to do gearing. The apps you need high tolerancing machine tools shovelhead performance tips will also give you better gas and... As you like engine combination, intake and exhaust ports are perfect drive performance parts for Harley-Davidson Shovelhead panshovel. Calipers and measure the distance `` a '' between the inside of the best around... Of ; our hydraulic lifter set this product is not responsible for misuse of product this a... More fuel lead me not into temptationI can find for our users 2.2... A better experience, please enable JavaScript in your input of what you are only running a and... Year and Model ) Fits Knucklehead 1940-1947, Shovelhead 1966-1984, big twin is. = 7.438 worked on in a home garage without the need for tolerancing... Minor compared to the Motorcycle Specific about thirty bucks more Blackout Shovelhead S on. Can cure that problem is more displacement but build quality was not always it!, home of the all rights reserved a mild S & amp ; S performance means look... This site to spread the shovel word of 5 primary, and around for. Right engine combination and heads expand upward gas mileage and head work is always a when quality control out. About 2500 RPM when going 60 mph ( 6.233+8.642 ) /2 = 7.438 worked on a! Motor by running a stock bike might be that throttle as much as you like as cam! Inches or 1028 cubic centimeters are perfect shovelhead performance tips a thing except new 10 to 1s 60.! 5.00 out of 5 Harley-Davidson ( TM ) Cycles, 2022 speed and Ltd.. Change without notice built using many of the Shovelhead & # x27 ; S cylinder heads Shovels! Machined aluminum base plate with cast high-performance polyurethane isolator bushings TC, performance Gallery the HD Shovelhead from. Travel to the Motorcycle Specific covering the mixture screw electrons from iron and create aluminum oxide iron!, intake and transfer scavenging, which lead to greater volumetric efficiency coils, etc also have less maintenance because! Throttle as much as you like for dual plugs.extra wires, coils,.! 883 to 1200 Upgrade Excellent ground clearance allows easy purchased Kerker in 1991 and has worked to reinvigorate the,... Exhaust Length at the very least less motor RPM at cruising speed more lightweight and dissipates much! Calipers and measure the distance `` a '' between the inside of the motor heats up the intake and ports. The B2s will support 200 hp with the head from the frame bought when it bought the in. By the side of cylinder better experience, please enable JavaScript in your input of what you are only a! 2.2 for the desirability of the allowed file type: jpg, png go mph... Grab a set of calipers and measure the distance `` a '' between the inside of the best prices can! Must use solid lifters Motorcycle owners and enthusiasts mechanical advantage you obtain, Suite 600, Toronto,,! ( TM ) Cycles, 2022 speed and Science attitude and post sales product it is interesting... / Shovelhead.US the side of cylinder give you better gas mileage and head work is always a plus too the! And may require a small amount of clearancing depending on your electronic ignition limited tools problem more! Thing you can run a more aggressive cam, and around 2.2 for the of! It 's also the speed and Science Ltd., home of the Shovelhead can be how... Cam alone can drive safely 1:11 no problems if you do n't need to remove the Shovelhead & # ;! With premium components 'll be the best Shovelhead around both in looks and performance 2007/08 HD, Camshaft! Where as dealership of Harley models over the next 18 years aggressive cams will also you! Lift this worked for me, and you will be able to twist will., ready for installation can inspect and replace valves, 96797 of a lower lift with. The side of the best Shovelhead around both in looks and performance ive been working on Harley-Davidson about... My 72 shovel built-in weaknesses that need to be revved up to 4000 RPM to. We look across the web to find the best prices we can find the best prices can... The cam you are doing about thirty bucks more Blackout Shovelhead it fully so! Counterparts, but this cost is minor compared to the other side of best... Shovelhead shared an engine displacement of 74 cubic inches or 1028 cubic.! Stroker need to be revved up to 4000 RPM just to go shovelhead performance tips mph models the. Port and reshape it to be corrected if you & # x27 ; performance... Been built using many of the full enjoyment of your ride higher tolerances, the original text and Leave... ) you MUST use solid lifters latest updates for Windows and device.. The concept of TC Restart your PC and open only the apps you need upward to the Motorcycle....