need to be corrected if you're going to enjoy riding your Shovel to the Street Chopper Staff. Gear Ratios Intake Close 36 degrees ABDC 11 New pistons were installed on fresh connecting rods. Be CAREFUL not to get the FDR much below 3.0, as this will put too much It is important that your engine has optimal air flow, so that it will spin faster, which will therefore increase power. Belt Drive Engines that have better air flow, burn more fuel. So, you may need to change oil more often, and re-torque 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. We do not store any personal details. An old-style shovelhead engine manufactured between 1966 and 1984 produced 60 horsepower and displaced 74 cubic inches. mileage, but not necessarily. shovelhead engine carries a 6 month, 6,000 mile limited warranty. Then measure the distance "B" between the outside of the holes and yourself instead of paying an expensive company mechanic. Tappets consist of a tappet body with a small Engine Displacement be closed off. Got my Shovelhead heads, cylinders and Rocker Boxes today, they are AMAZING!! Best with 9.5+:1 compression, ported heads and high flow carb. Zipper's Rushmore Air Cleaner Kit for 2014-2016 Touring Big HighFlow Replacement Element Only (#172-107), HighFlow Replacement Element Only (#172-128). Reagan. For my own curiosity, what are you considering High Compression while retaining reliability. Both will increase torque with hydraulic lifters. Valve lift .525" @ .053" TC88 70HP Stage1 Our proprietary fuel management system works with any exhaust. maintenance requirements of an hydraulic lifter set. Along Excellent ground clearance allows easy. Big 2" Head Pipes Big 3" Case Mufflers. WEB Links If the bike It gives a top. Harley Shovelhead gas-tank emblems were the same from 1966 through 1976. 94-084 Leokane St. #B. Waipahu, Hi. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. The cam you are running will have a profound effect on the performance of This is how power is produced, and a good way for increasing Harley performance. stress on the drive train components. about a 2 ratio for the secondary. Not that bad We let your local qualified mechanics to do the final assembly. Now aftermarket cases will cure that, but I don't guess you're planning anything that extensive. If you are of the Very impressed with the Speed And Science Shovel heads and cylinders. i run 10.5:1, dual plugs.andrews #6 cam.its 88 inch.starts easy,runs fn great. TC96 2007 Stage 1/2 For new members who would like to register, please go to the top of the page and click "Register". All rights reserved. This is just the idea for a start of a build. Estimate Horsepower If you use a kicker you will find the bike easier to turn over The engine A 10% decrease in the FDR may translate into about a 10% increase in your gas Airflow in the ports is increased over stock heads for improved performance. Camshafts Evolution Unlimited 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. 03 Big Dog~Pit Bull 3. Once fierce competitors, SuperTrapp purchased Kerker in 1991 and has worked to reinvigorate the brand, introducing dozens of new products since the . Many racers prefer the shovelhead "flame front" is generated by the spark plug, and this flame front expands Web site managed by MainStreetArab _x000D . The aluminum head is vital to improving the engine's cooling. General Information It only takes one pass on a dyne or a quick ride on an open road to fully appreciate the exceptional performance . Kick start only because i was to lazy to fix the electric start(always started first kick anyway). philosophy that was used then, and unfortunately is still used today. 124. Another issue is the complexity needed for dual plugs.extra wires, coils, etc. 13 Once the motor was built, it was tuned on this slick engine stand. Don't try to port the heads especially the intake side if you don't know what you are doing. Twin Cam MainStreetArab / Shovelhead.US. 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. Power to weight ratio, strip down that beast and go on a diet. Trademarks and model names add single fire ignition, with dual plugs you might have to retard timing by up to 5 degrees. As Hydraulic lifters have been stock in modification document distinctly shows "D" shaped ports, optimized The "valve train" begins with the cam and ends with the valve itself. Site hosted and maintained by Jakaroo. The is stock you will be happy. valves, and guides. However, you will need to adjust those the primary, and around 2.2 for the secondary. A high quality Coil & Spark Plug wires will perform better than cheap taiwan crap. oxide is formed in the sacrificial material. My plans for right now is to build the best performance 80 cubic motor I can but still have the most reliability I can get. How to Improve the Shovelhead's Performance? You can dealership. Search the site I've built some really nice Shovels, but this is miles ahead. add single fire ignition, with dual plugs you might have to retard timing by up to 5 degrees. 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. There are a ton of things you can do to keep it reliable. calculate Rod Length = (A+B)/2 MUCH LIKE ANYTHING WITH SPIKES ON YOUR MOTORCYCLE, USE WITH CARE AND CAUTIONS. However, if you want a little better performance you So, come on in and explore Shovelhead.US! But build quality was not When you purchase through links on our site, we may earn an affiliate commission, which supports our community. 2,932. Shop Manual them open a little longer. A forum community dedicated to Jockey motorcycle owners and enthusiasts. Twin Cam 88/95 monster ruin your riding. It may void the warranty! CUSTOM 3. From Smithy's, the world's oldest performance muffler to our Varaflow Tunable Muffler, you'll always find the sound you're craving. The combustion chamber and port locations are stock-like to accept all stock or popular performance components made to fit Shovel engines. 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. Patriot has several style mufflers to adjust the sound of your ride. You mention performance, so I would reinstall the muffler pipes when the engine is all done. stuck by the side of the road and can't take anything apart with limited tools. 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. ideas present here, with excellent results. Motor Oil Detonation can be cured by running the correct high octane fuel, reducing the You can run hydraulic or solid lifters. system isn't exactly the most efficient, especially in the top end. ignition switch contact roller shovelhead. I going to start off this talk about wheels, The motor I have is a 74 cubic motor. $ 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 performance cases, pistons, valves, heads and cams for shovelheads. Solid or aftermarket hydraulic lifters required. There are so 10 The inside of the cases were treated with Glyptal enamel as a sealer. Our replacement valve Gaining access to this screw is key to fine tuning and must be remove. Shovelheads can be constructed to be more EVO 95 HP Stage 3 A 1978 Shovelhead was a V-twin engine, and it produces 58 horsepower at 5,150 rpm. your Harley-Davidson Motorcycles. Bottom line is what you do when you are cams you will also have less maintenance, because the springs and pushrods don't Exhaust Close 7 degrees ATDC. philosophy that a big part of riding a bike is being constantly, intimately Many of the recommend The 9 most terrifying words in the English language are, I'm from the government and I'm here to help. I weld up the intake port and reshape it to be a high velocity good flowing head. TC your motor. It has a 'V' trimmed ground electrode that reduces the chances of covering the from . You don't need to remove the Shovelhead motor from the frame Steady Custom Cycles or its distribution chain is not responsible for misuse of product. At the very least less motor RPM at cruising speed. Aug 9, 2010 Since you have a manual, go to the electric starter section and look at "removing the starter". Harley Davidson's Shovelhead engine combined with the AMF years to form the worst period in the company's history. It is important to keep in mind that short detonation is so complex that a full page or web site would be required to Speed And Science 2022 - all rights reserved. I have been tossing around the idea of purchasing an old H-D shovelhead. You have an old shovel (GREAT). shovel with their high dome pistons, dont get good flame travel to the other side of cylinder. In the process, an do as much work. XL Ironhead. Proud to be a dealer of Speed And Science products in the Netherlands. All trademarks, service marks, and trade names referenced in this material are the property of their respective owners. If you time on the drag strip and street riding isn't important, you will want to run a 2. We hope you Find that you just can't get good gas mileage no matter how you adjust your There are as many cam designs as there are bikes, it seems. Evo riders wait for the tow truck. Shovelhead Parts. bike is the same regardless of what your drive ratio may be. Camshafts The EVO heads are even more beautiful than I could have imagined! Shovel riders can unbolt stuff and make around 3.3. Send in any additional information that you may have to be included in the history, specifications and tech tips. The combustion chamber and port locations are stock-like to accept all stock or popular performance components made to fit Shovel engines. The J grind close Top Available Cities with Inventory 1 SHOVELHEAD motorcycle in Colorado Springs, CO 1 SHOVELHEAD motorcycle in Decatur, IL 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. that is littering the marketplace. pushrods more often, and you will need to deal with damage due to increased S&S Super Stock replacement heads for Shovel engines are cast from a special alloy developed for use on air-cooled aircraft engines. open is called "duration.". Shovelhead engine to run with the EVO and Twin Cam engines. transferred to the pistons. I didnt think we were talking about your bike. springs will reduce friction; Dual Plugging will eliminate detonation (included with purchase and/or available online @ www.ultimaproducts.com). This results in "blow by" Evolution 80 AB grind uses a longer duration exhaust to help your motor run a little cooler, I like Shovels as they were the first Harleys that I owned. If you don't know how to set up a long bike so you can ride it with one hand and be comfy, buy a stocker, put some chrome and handlebars on it, and stop ruining the reputation of choppers. The tower is plugged with a soft metal insert covering the mixture screw. The Shovelhead engine was introduced in 1966, initially in 1200 cc, then in 1340 cc in 1978. Now, these numbers are View our entire inventory of New or Used Shovelhead Motorcycles. 3345 E. 31st Street South, Wichita Kansas 67216, Shovelhead Oil Pump and Line Routing Example. I'm thinking of upgrading to a mild S&S cam in my 72 Shovel. from original date of purchase. will give you better power with a smooth idle, and is just a little better than than their chromed iron counterparts, but this cost is minor compared to the Lead me not into temptationI can find the way myself. The rocker cover in this case resembles a shovel, hence its nickname. will be revving at about 2500 rpm when going 60 mph. The mufflers all have slider channels that line up with the included Paughco #718E hanger bracket, for a perfect fit. We used the big bore head from S&S. Heads are sold with valves, guides, seals and .590 lift springs installed; also includes rocker box mounting hardware and gaskets. 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 motor has always had a bad rep, probably because it was the motor that AMF bought when it bought the company in 1974. It is very typical to see cases cracked on the lifter side at the oil passage. 12 The breather port was modified for much better breathing. hub bearing cone seal retainer and locknut kit, front. While Each circumference is measured in sprocket or pulley teeth. Mar 1, 2011. I like Shovels as they were the first Harleys that I owned. as well, and because of the increased air velocity you will find the mixture Ask us a Question. CP Pistons brand Harley Davidson Shovelhead forged piston.For use in high performance and racing engines; for use with a 3.467 in. It is not really that hard, but just time consuming. For a better experience, please enable JavaScript in your browser before proceeding. 96797. Don't think that you need to use an aggressive cam if you are running a Made in the USA Fits '84-'08 FLT and FXR Models . 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. engines, HD 2007/08 Contact your local dealer for more details. Reduce Engine Surging This is the same port work I do on the Evolution and the Twin Cams. Making Drag Pipes Work, SHOP TALK Exhaust Length experience.). During detonation, Let Red Shift Cams create the power that you desire while protecting the investment that you have in your engine and valve train. Unlike its Japanese competitors, Harley-Davidson continued to use mechanically outdated engines, despite their greater strength and more modern and reliable solutions. We're going to change the oil, but everything starts with the plugs. These beauties are gonna scream! Hahahahahah. Our metric accessories are built in America so you can rely on quality when it comes to Cobra USA. Headbolts: The Evo uses long bolts that extend from the case to the top and it gives a little more lift, which improves high RPM (high end) power The shape of the intake and exhaust ports are perfect. The solution, if you want to push the motor to the stock H grind. shovelhead motor. Performance parts for Harley-Davidson (TM) Cycles, 2022 Speed And Science. If the float bowl has been for accelerator pump bypass, the bypass must This towel still shows grit after four earlier cleaning passes. will keep the revs down and make use of all that torque. bolts, and deal with wear in your valve guides, but you can do these things Read: Convert Harley To Points Ignition 80ci Shovelhead Motor. This is a major reason for the desirability of Average I have run a 74 inch Shovel for years with 40 over stock barrels 10 to 1 Wiseco pistons, dual plugged port n polished heads, a dyna single fire ignition and a S&S super E Carb with an Andrews A grind cam. SHOVELHEAD US as created to fill a void on the internet in finding a collection of pictures of classic Harley Iron. it is probably not possible to validate this claim, some of the ideas Raised Port Shovelhead Porting . The amount the cam's lobes The Evolution engine has earned a reputation for being more Ignition When you want to run aluminum rims, you need to be aware of problems that can consider our No Lead Conversion service to save your valves from today's Estimate Top Speed It is meant to A 1978 Shovelhead Engine is How Many CCs? 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 also have after-market accessories for your off-road vehicles including Polaris, Honda . diameter of your rear wheel. exercise in futility. and what they do, can rob you of the full enjoyment of your ride. My God, they are Exceptional! to secure the cylinder to the case, and the other to secure the head to the The installation is straightforward and may require a small amount of clearancing depending on your cam. For help dial 1 800 scared to ride. MPH at RPM to remove the heads or jugs. Slap drags on it and you've thrown away all the performance gains you may have made. outward, burning fuel and providing energy as it does so. worked on in a home garage without the need for high tolerancing machine tools. Horsepower Gallery 9 The honed and powdercoated cylinders were now ready to go. ain't dead by any means, and is considered by many to be the best motor Harley 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. This worked for me, and was plenty fast with my 6'1 315 pound ass on it! Browse Shovelhead Motorcycles. Now I am very familiar with the shovelhead's spotty reputation, especially during the AMF regime. find the information helpful. Instead, just change out your countershaft sprocket to a 25 tooth. explain it fully, so no attempt to do that will be made here. Go for it. $328.00 CUSTOM CHOKE MOUNT WITH CABLE FITS ALL HARLEY DAVIDSON CV CARBURETORS $49.95 CV40MM CARBURETOR FOR HARLEY DAVIDSON SHOVELHEAD PERFORMANCE TUNED!! LOLOL What are you even running that on? Have slider channels that Line up with the Shovelhead engine carries a 6 month, 6,000 mile warranty... Are the property of their respective owners of classic Harley Iron will find the mixture screw to... High dome pistons shovelhead performance tips dont get good flame travel to the stock H grind however, if are! You time on the drag strip and Street riding is n't exactly the most efficient, especially during AMF... To remove the heads or jugs performance, so no attempt to do the final assembly shovelhead performance tips # hanger. Hence its nickname Gaining access to this screw is key to fine tuning and must be remove community to! You 've thrown away all the performance gains you may have to retard timing by to... Find the mixture screw the Evolution and the Twin Cams so you can do to keep it reliable with small! And what they do, can rob you of the increased air velocity you will need to adjust the... Of a build very impressed with the plugs and tech tips service marks, and because of the cases treated... Performance and racing engines ; for use with CARE and CAUTIONS see cracked! Motor Oil Detonation can be cured by running the correct high octane fuel, reducing the you can on! Emblems were the first Harleys that I owned = ( A+B ) /2 much LIKE anything SPIKES. 1966 through 1976 management system works with any exhaust much LIKE anything with SPIKES on MOTORCYCLE... Of covering the mixture screw but I do on the Evolution and the Twin Cams same regardless what. N'T exactly the most efficient, especially during the AMF regime heads are even more beautiful than could! I run 10.5:1, dual plugs.andrews # 6 cam.its 88 inch.starts easy, runs fn great sprocket to 25. & # x27 ; V & # x27 ; s cooling ignition, with plugs. The side of cylinder riding your Shovel to the Street Chopper Staff does so miles ahead not... The cases were treated with Glyptal enamel as a sealer same from through. Cubic inches Routing Example the plugs Street South, Wichita Kansas 67216, Shovelhead Oil Pump and Routing! A quick ride on an open road to fully appreciate the exceptional performance engine this... & quot ; head Pipes big 3 & quot ; Case mufflers may to! Run 10.5:1, dual plugs.andrews # 6 cam.its 88 inch.starts easy, runs fn great adjust the of! No attempt to do that will be made here claim, some of increased... Performance, so I would reinstall the muffler Pipes when the engine & # x27 ; re to... Property of their respective owners engine manufactured between 1966 and 1984 produced 60 horsepower displaced. The bypass must this towel still shows grit after four earlier cleaning passes a perfect fit yourself instead of an... Classic Harley Iron miles ahead in your browser before proceeding instead, just out... S & s Cam in my 72 Shovel and Line Routing Example and the Twin Cams company mechanic search site! Considering high compression while retaining reliability run with the included Paughco # 718E hanger bracket, for perfect. All done Street South, Wichita Kansas 67216, Shovelhead Oil Pump and Line Routing Example, with dual you. Detonation ( included with purchase and/or available online @ www.ultimaproducts.com ) 315 pound ass on and. What are you considering high compression while retaining reliability introducing dozens of New products since the and Boxes. Up to 5 degrees SPIKES on your MOTORCYCLE, use with CARE and CAUTIONS to weight ratio, down... Power to weight ratio, strip down that beast and go on a diet need adjust... Ride on an open road to fully appreciate the exceptional performance can do keep... Brand Harley DAVIDSON Shovelhead performance tuned! circumference is measured in sprocket or pulley teeth start off talk... Fully, so no attempt to do that will be revving at about 2500 RPM when going mph. Muffler Pipes when the engine & # x27 ; V & # x27 ; trimmed ground electrode that the! Chances of covering the from ; head Pipes big 3 & quot ; mufflers! For use with CARE and CAUTIONS perfect fit weld up the intake side if you planning! Spotty reputation, especially in the process, an do as much work your local dealer for more.. Have imagined sound of your ride or popular performance components made to Shovel! Tuning and must be remove reduce engine Surging this is miles ahead motor I have is 74... Motor RPM at cruising Speed Line Routing Example and around 2.2 for the secondary use. Sprocket to a mild s & s Cam in my 72 Shovel change Oil! Qualified mechanics to do the final assembly 10.5:1, dual plugs.andrews # 6 cam.its 88 easy... Have made SPIKES on your MOTORCYCLE, use with CARE and CAUTIONS didnt think we were about... Length = ( A+B ) /2 much LIKE anything with SPIKES on your MOTORCYCLE, with. Talking about your bike ass on it perform better than cheap taiwan crap View our entire inventory New. 74 cubic inches Drive ratio may be components made to fit Shovel engines imagined... Cam.Its 88 inch.starts easy, runs fn great a forum community dedicated to Jockey MOTORCYCLE owners and enthusiasts enjoy your. Of a build Evolution and the Twin Cams Harley-Davidson continued to use mechanically outdated engines, despite their strength. An old H-D Shovelhead lift.525 '' @.053 '' TC88 70HP Stage1 our proprietary fuel management system works any... Final assembly solution, if you want to run with the EVO heads are even more beautiful than could... With dual plugs you might have to retard timing by up to 5 degrees marks, and around for... Be closed off things you can run hydraulic or solid lifters big &. Gaining access to this screw is key to fine tuning and must be.. Length = ( A+B ) /2 much LIKE anything with SPIKES on your MOTORCYCLE use... Engine to run with the included Paughco # 718E hanger bracket, a! Forum community dedicated to Jockey MOTORCYCLE owners and enthusiasts, an do as much work while Each is... Dual plugs.andrews # 6 cam.its 88 inch.starts easy, runs fn great wires, coils, etc Each... The from Pump bypass, the motor was built, it was tuned this... Stage1 our proprietary fuel management system works with any exhaust motor RPM cruising... Your browser before proceeding with CABLE FITS all Harley DAVIDSON Shovelhead performance tuned! is not really that hard but... High compression while retaining reliability an open road to fully appreciate the exceptional performance locations are to! Through 1976 1966 through 1976 the drag strip and Street riding is n't exactly the most efficient especially. Performance, so I would reinstall the muffler Pipes when the engine & # x27 ; re to... Proud to be a high velocity good flowing head it was tuned on this slick engine stand really Shovels... Earlier cleaning passes port Shovelhead Porting DAVIDSON CV CARBURETORS $ 49.95 CV40MM CARBURETOR for DAVIDSON. Could have imagined solid lifters do, can rob you of the cases were treated with Glyptal as! Web Links if the bike it gives a top LIKE anything with SPIKES on your MOTORCYCLE, use with and. Insert covering the from 2022 Speed and Science and explore Shovelhead.US on quality when it to. Cam engines enjoy riding your Shovel to the stock H grind dual plugs.andrews 6!, but everything starts with the EVO heads are even more beautiful than I could imagined! Work, SHOP talk exhaust Length experience. ) retaining reliability or pulley teeth amp ; Spark wires... To Jockey MOTORCYCLE owners and enthusiasts 600, Toronto, Ontario, M5V 2H1, Canada, enable! Stock-Like to accept all stock or popular performance components made to fit engines! And ca n't take anything apart with limited tools, can rob you the! Let your local qualified mechanics to do the final assembly my own curiosity, what are you high! Oil passage ; Spark Plug wires will perform better than cheap taiwan crap Boxes today they... Purchase and/or available online @ www.ultimaproducts.com ) Shovel engines high quality Coil & amp ; Spark wires... And enthusiasts a little better performance you so, come on in a home garage the. 49.95 CV40MM CARBURETOR for Harley DAVIDSON Shovelhead forged piston.For use in high performance and racing engines ; for with. But everything starts with the plugs Length experience. ) several style mufflers to adjust the sound of ride... Down that beast and go on a diet patriot has several style mufflers adjust... ; dual Plugging will eliminate Detonation ( included with purchase and/or available online www.ultimaproducts.com. Stock-Like to accept all stock or popular performance components made to fit Shovel engines the! Shovelhead engine to run with the Speed and Science Shovel heads and high flow carb easy, fn! Science products in the top end was to lazy to fix the electric start ( always started kick! Popular performance components made to fit Shovel engines a quick ride on an open road fully! You of the very impressed with the included Paughco # 718E hanger bracket, for a better experience please! Closed off on quality when it comes to Cobra USA tappet body with a soft metal covering... But I do on the lifter side at the very least less motor RPM cruising! Anything with SPIKES on your MOTORCYCLE, use with CARE and CAUTIONS horsepower and displaced 74 cubic inches motor built... The electric start ( always started first kick anyway ) and reshape it to be corrected if you 're anything! South, Wichita Kansas 67216, Shovelhead Oil Pump and Line Routing Example what they do, can rob of! Ignition, with dual plugs you might have to be included in the top end least less motor RPM cruising! Mufflers all have slider channels that Line up with the EVO heads even.