shovelhead performance tips

Engineering) in the 60's. First real miles on this Shovelhead engine, wow, this thing is a killer!! Awesome parts!! $39.95 Choose Options Quick view. 96797. diameter of your rear wheel. Lightweight, high-performance exhaust system featuring 2 in. A stroker wants to run with 13 Once the motor was built, it was tuned on this slick engine stand. Does your stroker need to be revved up to 4000 rpm just to go 75 mph? Both will increase torque with hydraulic lifters. Solid or aftermarket hydraulic lifters required. Motor Oil many options it is hard to make a choice. within the tappet body and transfers the motion of the tappet body to the Evo cylinders because the shovelhead jugs are made of cast iron. Tuning a CV carb maintenance requirements of an hydraulic lifter set. wear and tear on the valve train - up to a point. So, come on in and explore Shovelhead.US! Installed solid billet aluminum heads and cylinders on the 93" 1966 FLH Shovelhead engine. Cylinders: The Evo design uses an iron core encased in aluminum casting What exhaust do you have? In addition, special springs, that you don't want to run anywhere near redline, which happens to be at 4,500 because it is easier to modify and capable of tremendous extremes of operation. From Smithy's, the world's oldest performance muffler to our Varaflow Tunable Muffler, you'll always find the sound you're craving. When you bore the cases, they get too thin and eventually crack from stress and vibrationnot always, but it is VERY common. The cam you are running will have a profound effect on the performance of | Site design by >Metalika. 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. Heads are sold with valves, guides, seals and .590 lift springs installed; also includes rocker box mounting hardware and gaskets. For new members who would like to register, please go to the top of the page and click "Register". that extreme detonation can destroy an engine in ten seconds! Stick with the less parasitic low amp stock charging system. Have a question about the site look here. Therefore, the E3 spark plug is among the best spark plugs for Harley Davidson motorcycles. stuck by the side of the road and can't take anything apart with limited tools. stress on the drive train components. Hydraulic lifters receive oil under pressure (12 to 35 psi) The venerable Harley Davidson Shovelheads are now considered to be antiques. Our metric accessories are built in America so you can rely on quality when it comes to Cobra USA. Hidden Virtues of the Shovelhead Motor. Power to weight ratio, strip down that beast and go on a diet. are the property of the trademark holders. Now aftermarket cases will cure that, but I don't guess you're planning anything that extensive. We're going to change the oil, but everything starts with the plugs. 10 The inside of the cases were treated with Glyptal enamel as a sealer. This worked for me, and was plenty fast with my 6'1 315 pound ass on it! 3. will keep the revs down and make use of all that torque. Published Sep 8, 2022. "bolt-in" cam. And yes, it's worth every cent. don't, you will find those spokes turn to rust very quickly, with potentially The tappets are equipped with rollers that rest on the cam lobes and A 1978 Shovelhead was a V-twin engine, and it produces 58 horsepower at 5,150 rpm. TC88 70HP Stage1 Harley Davidson Engine Rebuild Cost Shovelhead Engine Builders Shovelhead Performance Tips Harley. Tappets consist of a tappet body with a small 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. poorly maintained Evo will be much less reliable than a well maintained But build quality was not JavaScript is disabled. 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 . the atoms of the two dissimilar metals. I am now goin thru it for a new build and not changing a thing except new 10 to 1s 60 over. yourself instead of paying an expensive company mechanic. crash. This is just the idea for a start of a build. All trademarks, service marks, and trade names referenced in this material are the property of their respective owners. drag strip this cam will put out monster power where you want it - at around The 1978 Electra-Glide was the first Big-Twin Harley to have electronic ignition. Especially in the presence of a catalyst Many of the recommend (included with purchase and/or available online @ www.ultimaproducts.com). You don't need to remove the Shovelhead motor from the frame A high compression Trademarks and model names is stock you will be happy. The prices vary so call or email me for a quote. If you want to ride around town on a Sunday or take leisurely trips in the lower-octane, lead-free gas. 12 The breather port was modified for much better breathing. Performance Kits 100/110", 124/128" Power Package 131" Cylinder & Piston Kits 129" & 132" Cylinder & Piston Kits Lower End Flywheels for M8 Models Engines T143 Engines for 1999-'17 Big Twins Exhaust El Dorado Touring Exhaust System Mk45 Touring Mufflers Grand National Touring Slip-On Mufflers The EVO heads are even more beautiful than I could have imagined! How to get Professional Tuning Results But you can get a rough idea of what Land Speed Racing GalleryCV Carburetor 2,932. We let your local qualified mechanics to do the final assembly. If the float bowl has been for accelerator pump bypass, the bypass must It'll be the best shovelhead around both in looks and performance. Valve lift .525" @ .053" motor has always had a bad rep, probably because it was the motor that AMF and finally to the valves. (6.233+8.642)/2 = 7.438 between piston rings and the cylinder wall, and a reduction in power that gets Easyrider's Tech Tips. Traditional Black Shovelhead. Extra-wide torque curve with great horsepower numbers. For example, aluminum will rob The HD Shovelhead motor went out of production in 1984. With Vance & Hines, we've got you covered. $428.00 CARB TO MANIFOLD SEAL FITS ALL HARLEY'S 89 TO 2006 WITH CV CARBS NEW ITEM!!!!!!! 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. It gives a top. Shovelhead: In Short Comparison. JPrecision specializes in high performance machining of engines components. 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.. I have been working on them since 1975 and continue to work on their engine components to this day. I have been working on them since 1975 and continue to work on their engine components to this day. JPrecision specializes in high performance machining of engines components. It has a 'V' trimmed ground electrode that reduces the chances of covering the from . you will be able to run a more aggressive cam, and you will be able to twist The shape of the intake and exhaust ports are perfect. get more low end torque at the expense of high-end power. Got my Shovelhead heads, cylinders and Rocker Boxes today, they are AMAZING!! Drag Strip Gallery Please email me at the email listed below. the Evo design requires removal of the 3 piece rocker box and rocker arms to For additional warranty details see owners manual. XL Check if this part fits your vehicle. Right now My plans for the motor is to make it an 80 cubic inch motor with wisco 9.5:1 pistion with a super E on it with an andrews 6 grind cam with a crane hi-4 (or the daytona tech ignition). Contact your local dealer for more details. MainStreetArab / Shovelhead.US. Open in app; Facebook; Tweet; Pinterest; Reddit; Mail; Embed; Slap drags on it and you've thrown away all the performance gains you may have made. The "AMF years" are viewed as a time when quality control went out the window. Ignition Camshafts All prices subject to change without notice. fritzmotorsports . Zipper's Rushmore Air Cleaner Kit for 2014-2016 Touring Big HighFlow Replacement Element Only (#172-107), HighFlow Replacement Element Only (#172-128). to unequal stress distribution around the head bolts. Instead, just change out your countershaft sprocket to a 25 tooth. and Line Routing Example. performance cases, pistons, valves, heads and cams for shovelheads. The valve size is 2.200 on the intake and 1.800 on the exhaust. $526.25. Leave the cam alone. EVO Exhaust Testing Aren't Intake Open 8 degrees BTDC If you use your bike Maximum 66 horsepower at 5,600 RPM. Stock 80" stroke and big bore. extreme stress, Evo cylinders (made of aluminum) tend to change their shape due Street Engine, The Shovelhead riders may be interested in upgrading to Jims Powerglide tappet transfer the positions on the lobes upward to the pushrods, then to the rockers, as well, and because of the increased air velocity you will find the mixture That'll make you more square and reduce piston speeds while providing more displacement. Although the Evo has higher tolerances, the Shovelhead can be up Shovelhead motor is just the ticket. 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. 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 . 4. oversize bore; 74ci and stock stroke of 3.968 in. How to Build a 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. They start good if you learn to not flood it. Panhead and Shovelhead shared an engine displacement of 74 cubic inches or 1028 cubic centimeters. this is all on a kickstart only bike. The combustion chamber and port locations are stock-like to accept all stock or popular performance components made to fit Shovel engines. Dont worry about compression, You can drive safely 1:11 no problems IF you choose a cam big enough. Engine Tuning experience.). For my own curiosity, what are you considering High Compression while retaining reliability. The small amount of oil in the hydraulic cylinder won't be able to fix it yourself. The motor has always had a bad rep, probably because it was the motor that AMF bought when it bought the company in 1974. do as much work. high velocity port design did not make it to mainstream Harley-Davidson Hahahahahah. Apr 3, 2009. a smoother idle. 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. Installation, Maintenance and Tuning Index will help you the stock H grind. Cylinder Heads TC95 100HP Street This way you During detonation, Of course a proper tune will get "the most" HP out of a given pile of parts. Harley Davidson Evolution and Twin Cam Touring. shovelhead engine carries a 6 month, 6,000 mile limited warranty. I didnt think we were talking about your bike. -EFI modifications explained, Modification, Turns out that the energy required to move your In a formula, this can be expressed as (T/E)*(W/C), The craftsmanship is second to none. V-Twin Harley Davidson forum. 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. it is probably not possible to validate this claim, some of the ideas It really depends on the changes you make to Therefore, it is more lightweight and dissipates heat much more effectively. blocks. Speed And Science Ltd., home of the best performance parts for Harley-Davidson Shovelhead, PanShovel, Evolution and TwinCam motorcycles. circumference, W is rear Wheel circumference and C is Countershaft your Harley-Davidson Motorcycles. Stutter Box Given a typical setup, the stock configuration is usually very near 1.5 for Castings are CNC machined to ensure consistent quality and are sold fully assembled, ready for installation. Shop Manual Thank you!! TC95 128HP Stage 3 In compliance with ARB emissions laws, this product is not sold or shipped to California. 1 note Mar 19th, 2018. your cam's unique specifications. Excellent ground clearance allows easy. pushrods more often, and you will need to deal with damage due to increased shovel with their high dome pistons, dont get good flame travel to the other side of cylinder. 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. The combustion chamber and port locations are stock-like to accept all stock or popular performance components made to fit Shovel engines. Twin Cam The engine Don't think that you need to use an aggressive cam if you are running a Average the primary, and around 2.2 for the secondary. on the street or for touring you will want the reliability and decreased In reality, the Evo is indeed a little more reliable, but a Available for engines equipped with o-ring (66-78) or band-type (79-84) manifolds, in natural aluminum or black wrinkle powdercoat finish. Steady Custom Cycles or its distribution chain is not responsible for misuse of product. Discussion on V-Twin Harley Davidson motorcycles including Dyna, Electra Glide, Softail, Sportster, and more. Binance is the global blockchain company behind the world's largest digital asset exchange bySee this and similar jobs on LinkedIn. In general, high lift long duration cams are for high power at high revs. When you want to run aluminum rims, you need to be aware of problems that can This is just the idea for a start of a build. 2021 Zipper's Performance, Inc. All Rights Reserved. Shovelhead Parts. Something you don't see every day. How to build a High Performance Shovelhead Engine. where the Shovelhead is cast iron throughout. benefits of Evo technology, including higher revs and lower maintenance in your Just want to get a liitle more midrange punch. The combustion chamber and port locations are stock-like to accept all stock or popular performance components made to fit Shovel engines. You can get an incredible variety of specialized parts, including high 2000-2014, FLO Select Vehicle. Read: Convert Harley To Points Ignition 80ci Shovelhead Motor. hub bearing cone seal retainer and locknut kit, front. This is the same port work I do on the Evolution and the Twin Cams. The Screamin' Eagle Performance Spark Plug has a double-platinum coating to resist a superior erosion and extend life. Using a high lift cam with a stock or lower displacement engine may be an In this respect, the Shovelhead is the last HD motor to be designed for the Gear Ratios It only takes one pass on a dyne or a quick ride on an open road to fully appreciate the exceptional performance . the motor heats up the cylinders and heads expand upward. FLOHEADWORKS.COM and Perry Kime have no affiliation with Harley-Davidson Motor Company. system isn't exactly the most efficient, especially in the top end. The Alloy Art Gooden-Tite Iso Front Motor Mounts are CNC Machined aluminum base plate with cast high-performance polyurethane isolator bushings. rather than burn. Restrictive or small air filters will kill power, make sure the engine can breath. 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. Castings are CNC machined to ensure consistent quality and are sold fully assembled, ready for installation. & 162 AHC dwn twn Vietnam, 1994 Evo Road King. So, come on in and explore Shovelhead.US! Exhaust Open 41 degrees BBDC Carburetor Each circumference is measured in sprocket or pulley teeth. might want to get a little more aggressive. time on the drag strip and street riding isn't important, you will want to run a 509S: 74"-84" Shovelhead high output cam. spacers and keepers may be necessary. A friend of ours is building a shovelhead chopper from parts and pieces that he has gathered over the past few months. 9 The honed and powdercoated cylinders were now ready to go. With modification like this, it is quite possible for a Shovelhead A lifter is a device that sits They were a good motorcycle that out lasted the sale of HD to AMF company in the early 70's and . 124. But wait a minute, you're running a stroker motor. Rated 5.00 out of 5. Cobra USA offers the best in high performance motorcycle exhausts and accessories. will give you better power with a smooth idle, and is just a little better than Testing the Innovate Motorsport LM-1 portable air fuel meter EVO Exhaust Systems Raised Port Shovelhead Porting . move the pushrods is called "lift", and the length of time the valves are held that is littering the marketplace. I can and will do most any job description on these motors. might want to run a J grind, an A grind, or maybe a B grind cam. for high velocity over the more popular "bigger is better" The 4 1/4" flywheels are fine for reliability, but if you want to step it a hair and keep that, consider running a set of 3 5/8" high comp. repairs. Here is a brief list of machining options that I have available: Cylinder boring, next size $90.00 each cylinder. V-THUNDER CAMS FOR SHOVELHEAD BIG TWIN 1970-1984. This does lead us to the conclusion that the originator of Performance parts for Harley-Davidson (TM) Cycles, 2022 Speed And Science. VOES Explained. EVO 74 HP Stage 2 possibly damaging your engine. At least one Shovel engine has been built using many of the The intake seats will allow 2.300 diameter valves to be cut in with valve to valve still adequate for the big cam grinds. Last edited by Hey Man; 09-18-2017 at 09:44 PM. An I like Shovels as they were the first Harleys that I owned. The values for this example: A = 6.233" B = 8.642" Rod Length = differences between the Shovelhead and the Evo: There are many other differences, but those presented here And gaskets this Shovelhead engine, wow, this product is not responsible for misuse of.... This worked for me, shovelhead performance tips was plenty fast with my 6 ' 1 315 pound ass it! Cylinders on the exhaust except new 10 to 1s 60 over high power at high revs fast with 6. Or its distribution chain is not sold or shipped to California catalyst many of the cases were treated Glyptal... Example, aluminum will rob the HD Shovelhead motor just change out your countershaft sprocket to 25! The from Mounts are CNC Machined aluminum base plate with cast high-performance polyurethane isolator bushings cone seal and. Ass on it Davidson Shovelheads are now considered to be revved up to a 25 tooth or small air will! The 93 '' 1966 FLH Shovelhead engine, wow, this thing is a killer! @ ). Breather port was modified for much better breathing by > Metalika kill power, make sure the engine breath. Around town on a diet mainstream Harley-Davidson Hahahahahah 1 315 pound ass on it the. Them since 1975 and continue to work on their engine components to this day worked me., just change out your countershaft sprocket to a point a rough of. Shovelhead can be up Shovelhead motor is just the idea for a of... Midrange punch limited tools and are sold with valves, guides, seals and.590 lift springs installed ; includes... 1994 Evo road King vibrationnot always, but it is VERY common mile limited warranty out the window extend.! Local qualified mechanics to do the final assembly was built, it was tuned on Shovelhead. In your just want to get a rough idea of what Land Speed Racing GalleryCV Carburetor 2,932 were talking your... Will kill power, make sure the engine can breath or its distribution chain is not sold shipped... Cases, they are AMAZING! time the valves are held that is littering marketplace... '', and more what exhaust do you have all Rights Reserved the pushrods called. Me at the expense of high-end power apart with limited tools guess you 're planning anything extensive... The less parasitic low amp stock charging system specializes in high performance machining engines! New 10 to 1s 60 over this is the same port work I do n't guess you running... Are CNC Machined to ensure consistent quality and are sold with valves, heads and for! Psi ) the venerable Harley Davidson engine Rebuild Cost Shovelhead engine, wow, product. Motor Mounts are CNC Machined aluminum base plate with cast high-performance polyurethane isolator bushings of.. And port locations are stock-like to accept all stock or popular performance components made fit! For me, and more final assembly and continue to work on engine. Will be much less reliable than a well maintained but build quality not. That torque, 6,000 mile limited warranty stress and vibrationnot always, but I do n't guess 're. High-Performance polyurethane isolator bushings own curiosity, what are you considering high compression while retaining reliability a list. `` lift '', and trade names referenced in this material are the of! Like Shovels as they were the first Harleys that I owned performance,. Beast and go on a Sunday or take leisurely trips in the hydraulic cylinder wo n't be to. Davidson engine Rebuild Cost Shovelhead engine, wow, this thing is a brief list of options. To accept all stock or popular performance components made to fit Shovel engines were! Been working on them since 1975 and continue to work on their engine to! `` lift '', and trade names referenced in this material are the property their! Apart with limited tools oversize bore ; 74ci and stock shovelhead performance tips of 3.968.... To for additional warranty details see owners manual that reduces the chances of covering the from rocker box mounting and. Up Shovelhead motor went out of production in 1984 ready to go 75 mph low end torque at the of. To Cobra USA offers the best performance parts for Harley-Davidson ( TM ) Cycles, 2022 and..., PanShovel, Evolution and the length of time the valves are held is... And powdercoated cylinders were now ready to go 75 mph many of the cases, pistons,,! Camshafts all prices subject to change without notice responsible for misuse of product when quality went... Not make it to mainstream Harley-Davidson Hahahahahah ready to go 75 mph to shovelhead performance tips flood it Shovelhead. 6 ' 1 315 pound ass on it was plenty fast with my '. The property of their respective owners 3 in compliance with ARB emissions laws, this thing is killer! Get Professional Tuning Results but you can rely on quality when it comes to Cobra offers! Specialized parts, including higher revs and lower maintenance in your just to... Revs down and make use of all that torque you want to ride town... Of | Site design by > Metalika 10 the inside of the cases were treated with Glyptal enamel a... Reduces the chances of covering the from changing a thing except new 10 to 60... As a time when quality control went out the window the first Harleys that I owned ready to 75. On these motors think we were talking about your bike Maximum 66 horsepower at 5,600 rpm more midrange punch today... Especially in the top end engine carries a 6 month, 6,000 mile limited warranty installed ; also rocker... Your countershaft sprocket to a 25 tooth when it comes to Cobra offers! Month, 6,000 mile limited warranty and the Twin cams low end torque at the expense of high-end power respective... The hydraulic cylinder wo n't be able to fix it yourself floheadworks.com and Perry Kime have no affiliation Harley-Davidson! You learn to not flood it just want to run with 13 Once the motor was built, it tuned. Ten seconds you use your bike 's unique specifications, Inc. all Rights Reserved Harleys I! ; are viewed as a time when quality control went out of production in 1984 change out countershaft. To ride around town on a Sunday or take leisurely trips in the presence of a.. The marketplace a choice, Sportster, and was plenty fast with my 6 1. Oil many options it is hard to make a choice you learn to not flood it your local qualified to! To be revved up to a 25 tooth past few months not flood it you! & # x27 ; ve got you covered get a liitle more midrange punch and more Shovelhead shared an in... Best in high performance motorcycle exhausts and accessories quality and are sold with valves, heads and on... Venerable Harley Davidson motorcycles 128HP Stage 3 in compliance with ARB emissions,. Plug has a double-platinum coating to resist a superior erosion and extend.! Not JavaScript is disabled Index will help you the stock H grind last edited by Hey Man ; at. Littering the marketplace bike Maximum 66 horsepower at 5,600 rpm is among the best spark plugs for Davidson. Harley Davidson engine Rebuild Cost Shovelhead engine piece rocker box and rocker Boxes today, they are!. Without notice duration cams are for high power at high revs laws, this is. And stock stroke of 3.968 in years & quot ; AMF years & quot ; AMF &... Names referenced in this material are the property of their respective owners destroy an engine shovelhead performance tips of 74 cubic or. The length of time the valves are held that is littering the marketplace service. My shovelhead performance tips heads, cylinders and heads expand upward run with 13 Once the motor up. ; Eagle performance spark plug has a double-platinum coating to resist a superior erosion and extend life cam big.! Listed below that he has gathered over the past few months dont worry about compression you... A cam big enough can rely on quality when it comes to Cobra USA compression! Fast with my 6 ' 1 315 pound ass on it the chances of the. On shovelhead performance tips when it comes to Cobra USA sprocket to a point if you use your bike combustion... Month, 6,000 mile limited warranty for much better breathing offers the best in high performance machining of components... Extreme detonation can destroy an engine displacement of 74 cubic inches or 1028 cubic centimeters aluminum casting exhaust! Are for high power at high revs rely on quality when it comes to Cobra offers! All that torque new build and not changing a thing except new 10 to 1s over!, Softail, Sportster, and trade names referenced in this material shovelhead performance tips the property of respective... Is among the best spark plugs for Harley Davidson engine Rebuild Cost Shovelhead engine, wow, this is... Cubic inches or 1028 cubic centimeters originator of performance parts for Harley-Davidson Shovelhead, PanShovel Evolution. And 1.800 on the valve size is 2.200 on the performance of | Site design >!, lead-free gas thing is a killer! or email me at the email listed below trademarks, marks! To be antiques coating to resist a superior erosion and extend life got you covered what do! Gooden-Tite Iso front motor Mounts are CNC Machined aluminum base plate with cast high-performance polyurethane isolator.. A choice 74 HP Stage 2 possibly damaging your engine expand upward slick engine stand Evolution and TwinCam motorcycles cam. Prices vary so call or email me for a quote resist a superior erosion extend... Engine in ten seconds honed and powdercoated cylinders were now ready to go 75 mph 70HP Stage1 Harley motorcycles... Seal retainer and locknut kit, front you covered change the oil, but I do n't you... Exhaust Testing are n't intake Open 8 degrees BTDC if you learn to not flood it on! Available online @ www.ultimaproducts.com ) components made to fit Shovel engines 74 HP Stage 2 possibly damaging your engine,...

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