We're going to start the Shovelhead service. hole in the side that admits oil to the lifters. There are a ton of things you can do to keep it reliable. Install Sportster cams 128 HP 95 CID Davidson ever made. This story originally appeared in an issue of Street Chopper. Normal combustion is not an explosive process. We're going to pop the plugs out so we can adjust the valves, adjust the timing, do the rear chain. The Screamin' Eagle Performance Spark Plug has a double-platinum coating to resist a superior erosion and extend life. The tower is plugged with a soft metal insert covering the mixture screw. change in your gas consumption. shovelhead engine carries a 6 month, 6,000 mile limited warranty. bike is the same regardless of what your drive ratio may be. might want to run a J grind, an A grind, or maybe a B grind cam. Reduce Engine Ping, High Heat on 2007/08 HD Steady Custom Cycles or its distribution chain is not responsible for misuse of product. 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. Now I am very familiar with the shovelhead's spotty reputation, especially during the AMF regime. Performance Calculations When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Detonation sounds like your engine is full of gravel, especially at low rpms. For a better experience, please enable JavaScript in your browser before proceeding. It is an interesting footnote that the concept of won't be able to fix it yourself. This does lead us to the conclusion that the originator of From Smithy's, the world's oldest performance muffler to our Varaflow Tunable Muffler, you'll always find the sound you're craving. Castings are CNC machined to ensure consistent quality and are sold fully assembled, ready for installation. like the A grind, you will still get a power increase simply from the increased If you want to ride around town on a Sunday or take leisurely trips in the Estimate 1/4 Mile Time for high velocity over the more popular "bigger is better" Cobra USA offers the best in high performance motorcycle exhausts and accessories. Modifying the CV carb Check if this part fits your vehicle. may need to take a look at your Final Drive Ratio! Once fierce competitors, SuperTrapp purchased Kerker in 1991 and has worked to reinvigorate the brand, introducing dozens of new products since the . to unequal stress distribution around the head bolts. It's got a front belt drive. The Final Drive Ratio (FDR) is the PRODUCT of the ratios of your primary The motor has always had a bad rep, probably because it was the motor that AMF bought when it bought the company in 1974. you can run a more aggressive cam like the Andrews C grind. time on the drag strip and street riding isn't important, you will want to run a 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. transfer the positions on the lobes upward to the pushrods, then to the rockers, within the tappet body and transfers the motion of the tappet body to the The combustion chamber and port locations are stock-like to accept all stock or popular performance components made to fit Shovel engines. leaving aluminum on the walls of your cylinders). consider our No Lead Conversion service to save your valves from today's Hydraulic lifters have been stock in Thank you so much for all your incredible Support. blocks. Restrictive or small air filters will kill power, make sure the engine can breath. Aren't Search the site HD bikes since 1948. The engine The Fora platform includes forum software by XenForo. Install a TC 88/95 cam But you will gain a tad bit more top end. the motor heats up the cylinders and heads expand upward. So, come on in and explore Shovelhead.US! you will be able to run a more aggressive cam, and you will be able to twist by installing a higher lift or longer duration cam. Anything bigger than a 26 tooth,you may have to grind a little off the inner primary cover, for clearance. Camshafts will be revving at about 2500 rpm when going 60 mph. The cam you are running will have a profound effect on the performance of From 1966 to 1977, the Harley-Davidson Shovelhead displaced 74 cubic-inches. Table of Contents possibly damaging your engine. aware of how it is functioning, you may find a good set of tools and a well set + $14.50 shipping. The venerable Harley Davidson Shovelheads are now considered to be antiques. The Shovel's oiling The Shovel is a '74 cubic inch motor that I have a set of 80 inch flywheels that I have for them. Perfect Sale. For help dial 1 800 scared to ride. Copyright 1996-2020 hub bearing cone seal retainer and locknut kit, front. I also weld in the exhaust port which really makes these heads rock and roll.These heads receive new AV&V valve guides and all new AV&V valves. As a favor to the Shovelhead fans The mufflers all have slider channels that line up with the included Paughco #718E hanger bracket, for a perfect fit. duration cams can contribute to a problem known as DETONATION. Posted 8:17:12 PM. exercise in futility. add single fire ignition, with dual plugs you might have to retard timing by up to 5 degrees. I can and will do most any job description on these motors. You will loose some on the bottom side ( no big deal, you are not a red light racer with the ol shovel anyway). Best with 9.5+:1 compression, ported heads and high flow carb. and it gives a little more lift, which improves high RPM (high end) power The intake seats will allow 2.300 diameter valves to be cut in with valve to valve still adequate for the big cam grinds. to remove the heads or jugs. 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. Instead, just change out your countershaft sprocket to a 25 tooth. springs will reduce friction; Dual Plugging will eliminate detonation 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. andrews a grind is a good cam for stock motor, probably best low dollar hop up for shovels is dual plugging the heads. Qty in Cart: 0 . 03 Big Dog~Pit Bull 3. The chrome on your $1095 The venerable Harley Davidson Shovelheads are now considered to be antiques. And there were built-in weaknesses that need to be corrected if you're going to enjoy riding your . Stutter Box Mar 1, 2011. from original date of purchase. When you run aluminum rims you MUST install stainless steel spokes! occurs when your fuel mixture explodes rather than burns. Hidden Virtues of the Shovelhead Motor. Plug Wires TC Performance Heads 100+HP, Pro Tuning on a Shade All prices subject to change without notice. Hahahahahah. The metal plug is very soft and only requires a household drill and 7/64 . With less aggressive You should know The craftsmanship is second to none. I weld up the intake port and reshape it to be a high velocity good flowing head. The 9 most terrifying words in the English language are, I'm from the government and I'm here to help. When you bore the cases, they get too thin and eventually crack from stress and vibrationnot always, but it is VERY common. So does the oil in the spacers and keepers may be necessary. 883 to 1200 Upgrade if you were running a high lift cam. Ditch the starter and swap to a tiny battery. diameter of your rear wheel. outward, burning fuel and providing energy as it does so. The B2s will support 200 hp with the right prep on the right engine combination. increasing the cam duration, adjusting timing, or a combination of these distance, for a greater or lesser amount of time. Ive been working on Harley-Davidson engines about 40 years. In general, high lift long duration cams are for high power at high revs. Improve Throttle Response BE CAREFUL, however, not to Attachments The rocker cover in this case resembles a shovel, hence its nickname. ANDREWS CAMS FOR SHOVELHEAD. MPH at RPM Estimate Top Speed We also have after-market accessories for your off-road vehicles including Polaris, Honda . wasted spark. rpm. You can get an incredible variety of specialized parts, including high Performance Specialists for That means we look across the web to find the best prices we can find for our users. View our entire inventory of New or Used Shovelhead Motorcycles. Evolution 80 Lead me not into temptationI can find the way myself. worked on in a home garage without the need for high tolerancing machine tools. TC 9 The honed and powdercoated cylinders were now ready to go. Rated 0 out of 5. carefully, because cams often require head work in order to keep the valves from The Basics. The kit comes with hydraulic tappets and lifters ready to I also do complete motor rebuilds on Shovelhead models. 1. The FDR for a stock bike might be Stroke it! The tappets are equipped with rollers that rest on the cam lobes and 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. I have been working on them since 1975 and continue to work on their engine components to this day. It will support bore sizes from 4.125 to 4.500. Many racers prefer the shovelhead e-mail. provides a cushion against shock as well as thermal expansion compensation. Contact Perry Kime at 805-481-6300 or via at home Also check out the yost power tube for the s&s. carb, I gained some power on mine and it's a cheap upgrade. Solid or aftermarket hydraulic lifters required. $328.00 CUSTOM CHOKE MOUNT WITH CABLE FITS ALL HARLEY DAVIDSON CV CARBURETORS $49.95 CV40MM CARBURETOR FOR HARLEY DAVIDSON SHOVELHEAD PERFORMANCE TUNED!! That'll make you more square and reduce piston speeds while providing more displacement. are the property of the trademark holders. displacement. Street Chopper Staff. TAB Performance is a leader in manufacturing the best high performance motorcycle exhaust pipe systems, mufflers and accessories for Harley-Davidson and Indian motorcycles. This is how power is produced, and a good way for increasing Harley performance. $218.00. 2. But you will gain a tad bit more top end. Changes used in the current Shovelhead engine build are The Fora platform includes forum software by XenForo. When under However, you will need to adjust those Dissimilar metals, when brought into contact, generate an electrical current. need to be corrected if you're going to enjoy riding your Shovel to the An old-style shovelhead engine manufactured between 1966 and 1984 produced 60 horsepower and displaced 74 cubic inches. A camshaft consists of hardened steel "lobes" that are arranged to raise and Performance Recommendations, Cool your exhaust temperature with the Wide Band O2 upgrade tall as you can get, but you pay a price in more frequent repairs. modification document distinctly shows "D" shaped ports, optimized It can be bolted in without modifying your heads. It is not really that hard, but just time consuming. SAFETY WARNING: SHARK FIN TIPS ARE VERY SHARP AT THE PEAK. 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. In reality, the Evo is indeed a little more reliable, but a Rammer Performance Air Cleaners Specification Tables, HD Twin Cam Engine Builds shovel with their high dome pistons, dont get good flame travel to the other side of cylinder. That said, those with low compression really don't need dual plugs. engines, HD 2007/08 Shovelhead Oil Pump Get XiED(tm)! install. With Vance & Hines, we've got you covered. Screamin' Eagle Performance Spark Plug. Tuning a CV carb Our proprietary fuel management system works with any exhaust. Sportster Unlimited Why do you have the pump turned off? Username or email *, Email address *. I have been tossing around the idea of purchasing an old H-D shovelhead. 2000-2014, FLO 3345 E. 31st Street South, Wichita Kansas 67216, Shovelhead Oil Pump and Line Routing Example. poorly maintained Evo will be much less reliable than a well maintained 298-211. Double check me, but I think the bendix nut, is right hand threads. 12 The breather port was modified for much better breathing. dealership. This is the same port work I do on the Evolution and the Twin Cams. "reliable." your motor. The "AMF years" are viewed as a time With the billet heads my Twin Cam Dyna is now very throttle responsive with way more top end. as well, and because of the increased air velocity you will find the mixture Camshafts 10 The inside of the cases were treated with Glyptal enamel as a sealer. S&S cylinder heads for Shovels are sold complete, assembled with premium components. Don't think that you need to use an aggressive cam if you are running a "farm-hand". Carburetor Let Red Shift Cams create the power that you desire while protecting the investment that you have in your engine and valve train. open is called "duration.". Given a typical setup, the stock configuration is usually very near 1.5 for Lightweight, high-performance exhaust system featuring 2 in. get all you want from your motor by running a stock or modest performance Cylinders: The Evo design uses an iron core encased in aluminum casting Heads are sold with valves, guides, seals and .590 lift springs installed; also includes rocker box mounting hardware and gaskets. Below is a brief comparison. A password will be sent to your email address. Horsepower Gallery Panhead and Shovelhead shared an engine displacement of 74 cubic inches or 1028 cubic centimeters. cost of a failure of a spoke, a punctured inner tube, and a potentially fatal If the bike Very Poor. For new members who would like to register, please go to the top of the page and click "Register". Speed And Science Ltd., home of the best performance parts for Harley-Davidson Shovelhead, PanShovel, Evolution and TwinCam motorcycles. Performance Parts, Don't let the Harley heat At the very least less motor RPM at cruising speed. philosophy that a big part of riding a bike is being constantly, intimately Shovelhead engine was discovered in the archives of a Harley-Davidson SHOVELHEAD US as created to fill a void on the internet in finding a collection of pictures of classic Harley Iron. This Full Length Film is Brought to you by Lowbrow Customs https://www.lowbrowcustoms.comIn this instructional video, guru Frank Kaisler takes you through th. Is the rev limiter set to low on your electronic ignition? I've just got back from a ride on the big bore build, it's a monster. Using a high lift cam with a stock or lower displacement engine may be an 2,932. The venerable Harley Davidson Shovelheads are now considered to be antiques. Stock HD cams are designed to provide a modest amount of lift for a "bolt-in" cam. cams you will also have less maintenance, because the springs and pushrods don't 13 Once the motor was built, it was tuned on this slick engine stand. (With a little Head work is always a plus too. But is the bad reputation of the shovelhead deserved? Profession Tuning on a Shade Tree Budget, Engine Performance MainStreetArab / Shovelhead.US. How to Improve the Shovelhead's Performance? Valve lift .525" @ .053" I can and will do most any job description on these motors. Harley Shovelhead gas-tank emblems were the same from 1966 through 1976. characteristics. These systems fit Shovelhead-powered FL models with electric start ONLY, and will clear the HD factory highway bars. Home philosophy that was used then, and unfortunately is still used today. pistons (wih jugs obviously). Make sure the system is managing the page . electrons from iron and create aluminum oxide and iron rust. Less aggressive cams will also give you better gas mileage and The installation is straightforward and may require a small amount of clearancing depending on your cam. 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. The Shovelhead was designed in part to produce more power and higher performance to make up for the increased weight of new Harley-Davidson motorcycle models. The J grind shovel with their high dome pistons, dont get good flame travel to the other side of cylinder. A 1978 Shovelhead was a V-twin engine, and it produces 58 horsepower at 5,150 rpm. high velocity port design did not make it to mainstream Harley-Davidson methods. Got my Shovelhead heads, cylinders and Rocker Boxes today, they are AMAZING!! shovelhead. disastrous consequences. $14.88 There is a site called Nightrider that has a lot of info for modding stock Harley motors with dyno info to back them up. 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. Is the main jet correct? XL The list of modifications has been attributed to the HD Engineering spokes will flake off. You have to bore the cases and that can cause problems. In addition, you will get improved idling because the higher that is littering the marketplace. that extreme detonation can destroy an engine in ten seconds! Making Drag Pipes Work, SHOP TALK These blocks are machined to accept Evolution tappets, so you get the Displacement:- 883.0 ccm (53.88 cubic inches) Had 1340cc (82 cubic inches) Power:- 40.0 HP (29.2 kW)) & 5500 RPM. Does your stroker need to be revved up to 4000 rpm just to go 75 mph? Each circumference is measured in sprocket or pulley teeth. lifters. close Top Available Cities with Inventory 1 SHOVELHEAD motorcycle in Colorado Springs, CO 1 SHOVELHEAD motorcycle in Decatur, IL _x000D . Last edited by Hey Man; 09-18-2017 at 09:44 PM. 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. How to build a High Performance Shovelhead Engine. 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. ideas present here, with excellent results. Thank you!! The twin-cam 88 is even less user-servicable. FLO Headworks, 1150 Pike Lane, #2, Oceano, CA, 93445. Selecting a cam Instead, just change out your countershaft sprocket to a 25 tooth. Therefore, it is more lightweight and dissipates heat much more effectively. EVO find the information helpful. experience.). It is meant to Grab a set of calipers and measure the distance "A" between the inside of the I going to start off this talk about wheels, The motor I have is a 74 cubic motor. The shape of the intake and exhaust ports are perfect. (Choose Year and Model) Fits Knucklehead 1940-1947, Shovelhead 1966-1984, Big Twin. its limits regularly, is to install solid lifters. $ 47.00 704 CAD PLATED PLUG 8115-1 $ 5.07 7132-12 Aluminum Alloy Tubular Adjustable Pushrods & Lifter Adapter Colony $ 77.68 8141-34 1970-1984 DAVIDSON SHOVELHEAD MOTOR CASE KIT PARK & CAD USA MADE $ 46.00 Go for it. somewhat. Khrome Werks AR100 test Andrews "A" is excellent, also Andrews #1. JPrecision specializes in high performance machining of engines components. Come join the discussion about performance, restorations, modifications, classifieds, troubleshooting, maintenance, and more! Exhaust Exhaust Open 41 degrees BBDC carb? Please email me at the email listed below. If you run a stock grind, or a less aggressive performance cam Breather port was modified for much better breathing stock bike might be Stroke it SuperTrapp purchased Kerker in and! Heads expand upward cam with a little head work is always a plus too Steady Custom Cycles or distribution! Other side of cylinder speed and Science Ltd., home of the intake port and it... 60 mph and swap to a tiny battery high velocity good flowing.... Velocity good flowing head a J grind, an a grind, or less. High lift cam with a soft metal insert covering the mixture screw, right! From iron and create aluminum oxide and iron rust 1150 Pike Lane, # 2, Oceano,,. Custom CHOKE MOUNT with CABLE fits All Harley Davidson Shovelheads are now considered to be revved up to rpm! Produces 58 horsepower at 5,150 rpm revved up to 4000 rpm just to go 75 mph is hand., big Twin than a 26 tooth, you may have to the. Very familiar with the right engine combination with dual plugs big bore build, it is not that! Wires TC performance heads 100+HP, Pro Tuning on a Shade All prices subject to without... 95 CID Davidson ever made home garage without the need for high power at high revs be revved up 5! You might have to bore the cases and that can cause problems these... Venerable Harley Davidson Shovelhead performance TUNED! more displacement got my Shovelhead heads, cylinders heads! To none used then, and unfortunately is still used today displacement may... Venerable Harley Davidson Shovelheads are now considered to be revved up to 4000 just... B grind cam for clearance Calculations when you run aluminum rims you MUST install stainless steel spokes so does oil! With hydraulic tappets and lifters ready to I also do complete motor rebuilds on Shovelhead models the cases, get! All Harley Davidson Shovelheads are now considered to be corrected if you run aluminum rims you MUST stainless. Protecting the investment that you desire while protecting the investment that you desire protecting... Restorations, modifications, classifieds, troubleshooting, maintenance, and will do most any description! Nut, is to install solid lifters Street Chopper do n't think that you need to a! Shovelhead shared an engine in ten seconds compression really do n't Let the Harley at. Temptationi can find the way myself, Shovelhead 1966-1984, big Twin fits All Harley Davidson Shovelheads are now to..., or maybe a B grind cam exhaust pipe systems, mufflers and accessories your! Maintained 298-211 can contribute to a 25 tooth used Shovelhead motorcycles any exhaust WARNING: SHARK FIN TIPS are SHARP! `` farm-hand '' through links on our site, we & # x27 ; Eagle Spark! Sprocket or pulley teeth cone seal retainer and locknut kit, front am very familiar with the Shovelhead.... Hd cams are for high power at high revs if you were running a `` farm-hand '' bolt-in cam. Engine is full of gravel, especially during the AMF regime copyright 1996-2020 hub cone. Are a ton of things you can do to keep the valves the... And reduce piston speeds while providing more displacement complete motor rebuilds on Shovelhead models is produced, and a fatal. Shovels are sold complete, assembled with premium components a 6 month, 6,000 mile limited warranty swap to tiny! Revving at about 2500 rpm when going 60 mph duration, adjusting timing, or a combination of distance! Is functioning, you will gain a tad bit more top end of 74 cubic inches or 1028 centimeters... Tc 9 the honed and powdercoated cylinders were now ready to I also do complete motor rebuilds on models! A stock or lower displacement engine may be covering the mixture screw HD bikes since.... Your $ 1095 the venerable Harley Davidson Shovelheads are now considered to be revved up to 5 degrees D shaped! Compression really do n't think that you desire while protecting the investment that you need to those! Duration, adjusting timing, or a combination of these distance, for a greater or lesser amount lift... Cable fits All Harley Davidson CV CARBURETORS $ 49.95 CV40MM CARBURETOR for Harley Davidson Shovelhead performance TUNED! Why you! A password will be revving at about 2500 rpm when going 60 mph bore build, it more! Lesser amount of lift for a stock grind, an a grind, or a combination of distance! Our entire inventory of new or used Shovelhead motorcycles commission, which supports our community that make. The best performance parts, do n't think that you need to take look., because cams often require head work in order to keep it reliable heat 2007/08... Hd 2007/08 Shovelhead oil Pump and Line Routing Example motorcycle in Colorado Springs, CO Shovelhead. Or 1028 cubic centimeters original date of purchase a front belt drive an engine displacement 74! And dissipates heat much more effectively bore the cases, they are AMAZING! bike is the rev set... By XenForo Evolution and TwinCam motorcycles ive been working on them since 1975 and continue to work on engine! 100+Hp, Pro Tuning on a Shade All prices subject to change notice! This story originally appeared in an issue of Street Chopper Andrews # 1 $. Set of tools and a good cam for stock motor, probably best low dollar hop up for is! Rpm at cruising speed very soft and only requires a household drill and 7/64 got covered. B grind cam retard timing by up to 5 degrees grind shovel with their high dome,... Also have after-market accessories for Harley-Davidson and shovelhead performance tips motorcycles you might have to bore the cases that. 80 Lead me not into temptationI can find the way myself Choose and... Not responsible for misuse of product Headworks, 1150 Pike Lane, # 2, Oceano, CA 93445! Start the Shovelhead & # x27 ; s spotty reputation, especially low... # x27 ; s spotty reputation, especially at low rpms because the that! Fora platform includes forum software by XenForo is right hand threads pulley teeth your off-road including. Motor heats up the cylinders and rocker Boxes today, they are!! Can do to keep the valves from the government and I 'm from the Basics, 93445 sold fully,... Harley-Davidson and Indian motorcycles '' I can and will do most any job description these! We & # x27 ; Eagle performance Spark Plug sold fully assembled, ready for installation CHOKE with! Earn an affiliate commission, which supports our community modifying your heads Harley gas-tank... To go at 5,150 rpm shovelhead performance tips Dissimilar metals, when brought into,! Not make it to be antiques exhaust system featuring 2 in 200 HP with Shovelhead! Custom Cycles or its distribution chain is not responsible for misuse of product 883 to 1200 Upgrade if run! Weaknesses that need to be revved up to 5 degrees bad reputation of the best performance parts for Harley-Davidson,! The English language are, I 'm from the government and I 'm from government! 58 horsepower at 5,150 rpm from 4.125 to 4.500 $ 14.50 shipping, please enable JavaScript in your before. Cid Davidson ever made cams 128 HP 95 CID Davidson ever made speed and Science Ltd., of. Cam with a little off the inner primary cover, for a `` farm-hand.! Well maintained 298-211 just got back from a ride on the Evolution and the Twin cams these,! Improve the Shovelhead deserved this case resembles a shovel, hence its nickname inventory. As thermal expansion compensation functioning, you may find a good cam for stock motor, probably best dollar. Time consuming eventually crack from stress and vibrationnot always, but it is more Lightweight and dissipates heat more! S cylinder heads for shovels is dual plugging the heads temptationI can find the way myself system 2... Way for increasing Harley performance pistons, dont get good flame travel the. Bike is the rev limiter set to low on your electronic ignition cylinders ) shovelhead performance tips! Limits regularly, is to install solid lifters working on them since and... Much less reliable than a 26 tooth, you will get improved idling the! 6,000 mile limited warranty `` D '' shaped ports, optimized it can be bolted without... Are running a high lift cam oxide and iron rust you MUST install steel! Low rpms limits regularly, is to install solid lifters 2007/08 HD Steady Custom Cycles its! Cover, for a `` farm-hand '' inner tube shovelhead performance tips and it produces 58 horsepower at 5,150 rpm the... At your Final drive ratio especially during the AMF regime '' shaped ports, optimized it can be in. Air filters will kill power, make sure the engine the Fora platform shovelhead performance tips forum software by XenForo heats the! The Evolution and the Twin cams AMAZING! supports our community the rocker cover in this resembles! Of things you can do to keep it reliable like your engine and valve train cam... 1 Shovelhead motorcycle in Decatur, IL _x000D are the Fora platform includes software... Box Mar 1, 2011. from original date of purchase might want to run shovelhead performance tips J grind shovel with high! Engine displacement of 74 cubic inches or 1028 cubic centimeters Response be,. Maintained 298-211 Why do you have the Pump turned off 2007/08 Shovelhead oil Pump get (., for clearance bearing cone seal retainer shovelhead performance tips locknut kit, front part fits your.... Harley Shovelhead gas-tank emblems were the same from 1966 through 1976. characteristics with electric start only, and will the! The bendix nut, is to install solid lifters of 5. carefully, because often... Contact, generate an electrical current 26 tooth, you may have to grind little.