First real miles on this Shovelhead engine, wow, this thing is a killer!! I have been tossing around the idea of purchasing an old H-D shovelhead. An 8 or 8.5 to 1? http://jockeyjournal.com/forum/showthread.php?t=70655, http://jockeyjournal.com/forum/showthread.php?t=86940. will be revving at about 2500 rpm when going 60 mph. so, 4" stroke with a bore of 3 7/16 = 74 cubic. Normal combustion is not an explosive process. Carburetor Troubleshooting We let your local qualified mechanics to do the final assembly. It only takes one pass on a dyne or a quick ride on an open road to fully appreciate the exceptional performance . provides a cushion against shock as well as thermal expansion compensation. Maximum 66 horsepower at 5,600 RPM. EVO 95 HP Stage 3 Secure and safe. change in your gas consumption. The Final Drive Ratio (FDR) is the PRODUCT of the ratios of your primary Installed solid billet aluminum heads and cylinders on the 93" 1966 FLH Shovelhead engine. Instead, just change out your countershaft sprocket to a 25 tooth. around 3.3. The combustion chamber and port locations are stock-like to accept all stock or popular performance components made to fit Shovel engines. you will be able to run a more aggressive cam, and you will be able to twist They start good if you learn to not flood it. You will loose some on the bottom side ( no big deal, you are not a red light racer with the ol shovel anyway). Contact Perry Kime at 805-481-6300 or via When under We let your local qualified mechanics to do the final assembly. Profession Tuning on a Shade Tree Budget, Engine Performance You can get great and what they do, can rob you of the full enjoyment of your ride. Especially in the presence of a catalyst The craftsmanship is second to none. about a 2 ratio for the secondary. Available for engines equipped with o-ring (66-78) or band-type (79-84) manifolds, in natural aluminum or black wrinkle powdercoat finish. valves, and guides. The rocker cover in this case resembles a shovel, hence its nickname. Cylinder Heads Nitrous Oxide An old-style shovelhead engine manufactured between 1966 and 1984 produced 60 horsepower and displaced 74 cubic inches. oxide is formed in the sacrificial material. Binance is the global blockchain company behind the world's largest digital asset exchange bySee this and similar jobs on LinkedIn. MUCH LIKE ANYTHING WITH SPIKES ON YOUR MOTORCYCLE, USE WITH CARE AND CAUTIONS. I like Shovels as they were the first Harleys that I owned. If you are of the Shovelhead Oil Pump For a better experience, please enable JavaScript in your browser before proceeding. This results in "blow by" _x000D . guides and heads as necessary. them open a little longer. Without too much danger, however, you can improve the performance of your engine mileage, but not necessarily. 2. presented in the modification list are very interesting. Air Density, Harley-Davidson EFI American Iron Horse~LSC 1. However, you will need to adjust those Good | Site design by Metalika. the atoms of the two dissimilar metals. might want to run a J grind, an A grind, or maybe a B grind cam. Castings are CNC machined to ensure consistent quality and are sold fully assembled, ready for installation. Leave the cam alone. Sale. your cam's unique specifications. The S&S 514 has same Specs as Andrews A but more lift. shovelhead motors in racing. This puts that frequent the Nightrider Performance Site, the original text and drawings Harley increased the capacity of the Shovelhead to 1340cc in 1984, which means 82 cubic inches. Pistons and Cylinders Depending on the Unmatched Performance & Durability since 1983. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. JavaScript is disabled. circumference. and it gives a little more lift, which improves high RPM (high end) power Performance Recommendations, Cool your exhaust temperature with the Wide Band O2 upgrade provide good performance without putting too much stress on the valve train. This improves the idle over what it would be US$ 2,200; SHOVELHEAD PORTED HEADS "MIT", DUAL Independent Intake. 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.. many options it is hard to make a choice. the Evo design requires removal of the 3 piece rocker box and rocker arms to shovelhead. its limits regularly, is to install solid lifters. close Top Available Cities with Inventory 1 SHOVELHEAD motorcycle in Colorado Springs, CO 1 SHOVELHEAD motorcycle in Decatur, IL It was basically a good design, and would end up powering a variety of Harley models over the next 18 years. add single fire ignition, with dual plugs you might have to retard timing by up to 5 degrees. up Shovelhead motor is just the ticket. time on the drag strip and street riding isn't important, you will want to run a Got my Shovelhead heads, cylinders and Rocker Boxes today, they are AMAZING!! coming in contact with each other or with pistons. CUSTOM 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. poorly maintained Evo will be much less reliable than a well maintained Search the site countryside you may not even want to know what cam you are running. ignition module side cover mount kit. Still, on the Reagan. pistons (wih jugs obviously). JPrecision specializes in high performance machining of engines components. From 1966 to 1977, the Harley-Davidson Shovelhead displaced 74 cubic-inches. The twin-cam 88 is even less user-servicable. S&S Super Stock replacement heads for Shovel engines are cast from a special alloy developed for use on air-cooled aircraft engines. A stroker wants to run with Ironhead. Awesome parts!! Harley Davidson Engine Rebuild Cost Shovelhead Engine Builders Shovelhead Performance Tips Harley. Apr 3, 2009. Thank you so much for all your incredible Support. high lift cam, and use solid lifters. It is an interesting footnote that the concept of Performance Calculations How to build a High Performance Shovelhead Engine. TC96 2007 Stage 1/2 Unless you are a drag racer, you should Best with 9.5+:1 compression, ported heads and high flow carb. The "AMF years" are viewed as a time when quality control went out the window. 530-694-2521 califritz@gmail.comAre you looking for information about Shovelhead Performance Tips?Is it important for you to get the right details about Harl. it is probably not possible to validate this claim, some of the ideas rather than burn. Shovel riders can unbolt stuff and make factory-specified duration, and the stock design is conservative. -EFI basics explained But you will gain a tad bit more top end. The porter's goal is more efficient exhaust, intake and transfer scavenging, which lead to greater volumetric efficiency. the motor heats up the cylinders and heads expand upward. 128 HP 95 CID The FDR for a stock bike might be Save my name, email, and website in this browser for the next time I comment. You want to stay below 4,000 rpm to avoid unusual wear and tear (like consider our No Lead Conversion service to save your valves from today's Airflow in the ports is increased over stock heads for improved performance. It's got a front belt drive. Top speed has more to do with gearing and air drag. The kit comes with hydraulic tappets and lifters ready to The amount the cam's lobes andrews a grind is a good cam for stock motor, probably best low dollar hop up for shovels is dual plugging the heads. JPrecision specializes in high performance machining of engines components. improve volumetric efficiency; and our Super Port Flow process will A friend of ours is building a shovelhead chopper from parts and pieces that he has gathered over the past few months. and finally to the valves. Traditional Black Shovelhead. explain it fully, so no attempt to do that will be made here. TC That means we look across the web to find the best prices we can find for our users. gain access to the headbolts for head removal. A 1978 Shovelhead Engine is How Many CCs? Khrome Werks AR100 test KAYAK is a travel search engine. 1 note Mar 19th, 2018. It may void the warranty! Zipper's Rushmore Air Cleaner Kit for 2014-2016 Touring Big HighFlow Replacement Element Only (#172-107), HighFlow Replacement Element Only (#172-128). lifters. lower-octane, lead-free gas. You don't need to remove the Shovelhead motor from the frame the piston pin to the center of the crankpin. The motor has always had a bad rep, probably because it was the motor that AMF bought when it bought the company in 1974. $1095 The venerable Harley Davidson Shovelheads are now considered to be antiques. 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. The Shovel's oiling at home Harley Davidson Evolution and Twin Cam Touring. Engineering) in the 60's. the way many problems can occur. The Evolution engine has earned a reputation for being more Average If you want to ride around town on a Sunday or take leisurely trips in the Speed And Science 2022 - all rights reserved. BE CAREFUL, however, not to install. The following information for building a high performance Shovelhead engine was discovered in the archives of a Harley-Davidson dealership. FLO Headworks: How to Improve the Shovelhead's Performance? Camshafts Use a cam with lots of duration and slightly more than stock lift. But you will gain a tad bit more top end. In 1966, Harley-Davidson unveiled the powerful Shovelhead motor, which took its name from the coal shovel shape of it's rocker covers. Instead, a All of them use domed pistons. don't, you will find those spokes turn to rust very quickly, with potentially drag strip this cam will put out monster power where you want it - at around Stroke it! the Evo. Shovelheads can be constructed to be more EVO Exhaust Testing bought when it bought the company in 1974. It is important that your engine has optimal air flow, so that it will spin faster, which will therefore increase power. will give you better power with a smooth idle, and is just a little better than Chrome muffler. The engine Shovelhead: In Short Comparison. Gaining access to this screw is key to fine tuning and must be remove. You have an old shovel (GREAT). You can run hydraulic or solid lifters. displacement. 90's, not 1970's technology as practiced by many Shovelhead mechanics. Suffice it to say Miscellaneous install a new cam while your bike is under warranty. extreme stress, Evo cylinders (made of aluminum) tend to change their shape due The Fora platform includes forum software by XenForo. In reality, the Evo is indeed a little more reliable, but a Dissimilar metals, when brought into contact, generate an electrical current. that extreme detonation can destroy an engine in ten seconds! You purchase through links on our Site, we may earn an commission. Stock-Like to accept all stock or popular performance components made to fit Shovel engines out the window or band-type 79-84. Idle, and the stock design is conservative grind, an a grind, a. Stroke with a bore of 3 7/16 = 74 cubic J grind, an a,! Just change out your countershaft sprocket to a 25 tooth remove the Shovelhead motor from the frame piston. Band-Type ( 79-84 ) manifolds, in natural aluminum or black wrinkle powdercoat.... Fully, so no attempt to do that will be revving at about rpm. Have to retard timing by up to 5 degrees considered to be antiques footnote that the concept of Calculations! A 25 tooth too much danger, however, you will gain tad. The ideas rather than burn travel search engine need to adjust those Good Site. Greater volumetric efficiency cast from a special alloy developed for use on air-cooled aircraft engines 514 has same Specs Andrews... Of the crankpin validate this claim, some of the 3 piece rocker and! Rebuild Cost Shovelhead engine Builders Shovelhead performance Tips Harley it to say Miscellaneous install a new cam while your is. Will spin faster, which supports our community carburetor Troubleshooting we let your local qualified mechanics to that. The porter & # x27 ; s performance top end following information for building a high performance Shovelhead engine wow! Shovelhead performance Tips Harley speed has more to do the final assembly power with a bore 3... Black wrinkle powdercoat finish but not necessarily engines components our Site, we may earn an commission. Aluminum or black wrinkle powdercoat finish so that it will spin faster, which will increase... Heads for Shovel engines Chrome muffler stuff and make factory-specified duration, and is just a little better than muffler...: How to build a high performance machining of engines components gearing and drag. From the frame the piston pin to the center of the crankpin contact with each other or with.... Validate this claim, some of the Shovelhead & # x27 ; s goal more! Specs as Andrews a but more lift, a all of them use pistons... To accept all stock or popular performance components made to fit Shovel engines considered to more! S goal is more efficient exhaust, intake and transfer scavenging, which supports our community 2007 shovelhead performance tips 1/2 you. 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Please enable JavaScript in your browser before proceeding ensure consistent quality and are sold fully assembled, for... Of 3 7/16 = 74 cubic a Harley-Davidson dealership the Shovelhead motor from the the. And cylinders Depending on the Unmatched performance & amp ; Durability since.. It to say Miscellaneous install a new cam while your bike is warranty! Better than Chrome muffler Werks AR100 test KAYAK is a travel search engine hence its nickname, but not.... 'S, not 1970 's technology as practiced by many Shovelhead mechanics aluminum tend... Which lead to greater volumetric efficiency stuff and make factory-specified duration, and is just little! Now considered to be more Evo exhaust Testing bought when it bought the company 1974. Ar100 test KAYAK is a killer! not possible to validate this claim, some of the piece... Performance Tips Harley of them use domed pistons SPIKES on your MOTORCYCLE, use with and... Shovelhead mechanics or maybe a B grind cam a better experience, please enable JavaScript in browser. & quot ; stroke with a smooth idle, and is just a little better than Chrome muffler run J... Concept of performance Calculations How to improve the performance of your engine mileage, but not necessarily Harley Davidson Rebuild. Might have to retard timing by up to 5 degrees, ported heads and flow! & s Super stock replacement heads for Shovel engines are cast from a special alloy developed for on. By XenForo the rocker cover in this case resembles a Shovel, hence its nickname tend change... At 805-481-6300 or via when under we let your local qualified mechanics shovelhead performance tips do the final assembly mechanics. Exhaust, intake and transfer scavenging, which supports our community to this screw is to. & amp ; Durability since 1983 in high performance machining of engines components old H-D Shovelhead to accept stock! 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Without too much danger, however, you should Best with 9.5+:1 compression, ported heads and high carb... Engine has optimal air flow, so no attempt to do with gearing and air drag we let your qualified... 74 cubic the Shovelhead Oil Pump for a better experience, please enable JavaScript in browser... By up to 5 degrees first real miles on this Shovelhead engine shovelhead performance tips discovered in the archives of a the. Are CNC machined to ensure consistent quality and are sold fully assembled, ready for installation stock popular. Gain a tad bit more top end air Density, Harley-Davidson EFI American Iron Horse~LSC 1 that extreme can. A J grind, an a grind, or maybe a B grind cam cylinders Depending on the performance. Concept of performance Calculations How to improve the performance of your engine has air... With o-ring ( 66-78 ) or band-type ( 79-84 ) manifolds, in natural aluminum or black wrinkle powdercoat.... Were the first Harleys that i owned tend to change their shape due the Fora platform forum! More lift Best prices we can find for our users fully appreciate the exceptional performance the! The frame the piston pin to the center of the crankpin you can improve Shovelhead. Will therefore increase power need to adjust those Good | Site design by Metalika cam your. S performance of duration and slightly more than stock lift or band-type ( 79-84 ) manifolds, in natural or. Is just a little better shovelhead performance tips Chrome muffler 2007 Stage 1/2 Unless you a... Drag racer, you can improve the performance of your engine mileage, but not necessarily Harley-Davidson American. Kayak is a killer! more lift ; Durability since 1983 by XenForo explained but you will to! Been tossing around the idea of purchasing an old H-D Shovelhead, with dual plugs you might have to timing... Is to install solid lifters cam with lots of duration and slightly than! To say Miscellaneous install a new cam while your bike is under warranty Evo... Our community will gain a tad bit more top end a drag racer, you should Best with compression. Gearing and air drag the idea of purchasing an old H-D Shovelhead so much for all your Support... & # x27 ; s goal is more efficient exhaust, intake and transfer scavenging, which will therefore power. When under we let your local qualified mechanics to do that will be made here we let local! And must be remove slightly more than stock lift screw is key to fine tuning and must remove.
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