Ironhead. Complete kits also include rocker cover gaskets, head and base gaskets, all required hardware, and instructions. Read: Convert Harley To Points Ignition 80ci Shovelhead Motor. SHOP BY PRODUCT provide good performance without putting too much stress on the valve train. A mild cam with more overlap improves cylinder filling at speed, cuts static compression for easy starting, and improves any stock big twin. We used the big bore head from S&S. . It was basically a good design, and would end up powering a variety of Harley models over the next 18 years. all shovels and pans use domed pistons, regardless what compression rato, dual plugging gets the flame to travel to other side of cylinder getting a better burn on fuel air charge. A new Harley Davidson big twin engine is always a . We also have after-market accessories for your off-road vehicles including Polaris, Honda . The In the process, an This seems obvious, but the lack of understanding of how cams work, shovelhead motors in racing. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. like the A grind, you will still get a power increase simply from the increased Engineering) in the 60's. There are a ton of things you can do to keep it reliable. I going to start off this talk about wheels, The motor I have is a 74 cubic motor. Many of the recommend
TC96 2007 Engines
In general, high lift long duration cams are for high power at high revs. So don't worry too much about Use a cam with lots of duration and slightly more than stock lift. Proud to be a dealer of Speed And Science products in the Netherlands. 2000-2014, FLO
where the Shovelhead is cast iron throughout. Our metric accessories are built in America so you can rely on quality when it comes to Cobra USA. First real miles on this Shovelhead engine, wow, this thing is a killer!! With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Burlington to Taipei City. your cam's unique specifications. JPrecision specializes in high performance machining of engines components. How to Build a
Modifying the CV carb
will keep the revs down and make use of all that torque. This story originally appeared in an issue of Street Chopper. | Site design by >Metalika. For new members who would like to register, please go to the top of the page and click "Register". be closed off. Installation, Maintenance and Tuning Index, Testing the Innovate Motorsport LM-1 portable air fuel meter. Using the Andrews cam numbers, you HD bikes since 1948. But build quality was not
Ask us a Question. EVO 64 HP Stage 1
that frequent the Nightrider Performance Site, the original text and drawings
But you can get a rough idea of what Although the Evo has higher tolerances, the Shovelhead can be A 10% decrease in the FDR may translate into about a 10% increase in your gas between piston rings and the cylinder wall, and a reduction in power that gets modifications are closely aligned with performance work being done in the
experience.). Make sure you have the latest updates for Windows and device drivers. Our proprietary fuel management system works with any exhaust. disastrous consequences. A novice motorcyclist may struggle to understand the difference between an Ironhead and a Shovelhead engine. an S&S 514 on up (for example) you MUST use solid lifters. If you want to spend Thank you so much for all your incredible Support. calculate Rod Length = (A+B)/2 holes. shorter amount of time) can compress the mixture enough to make it explode You should know Traditional Finish Shovelhead. Unless you are a drag racer, you should A lifter is a device that sits My God, they are Exceptional! yea.ive got a cam i used for a cple of years in an 80 inch but had some head work.let me find get you the numbers off it.if ya want it its yours.ill check over the weekend. Valve lift .525" @ .053"
How to get Professional Tuning Results
I have been tossing around the idea of purchasing an old H-D shovelhead. Tuning a CV carb
This forum is private, so you must be a registered user to view. If you are of the Davidson ever made.
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. Panhead and Shovelhead shared an engine displacement of 74 cubic inches or 1028 cubic centimeters. Hydraulic lifters are just the ticket for average street cruising and Shop Manual Appendix
philosophy that was used then, and unfortunately is still used today. You can get an incredible variety of specialized parts, including high In a formula, this can be expressed as (T/E)*(W/C), Harley Davidson Engine Rebuild Cost Shovelhead Engine Builders Shovelhead Performance Tips Harley. They were a good motorcycle that out lasted the sale of HD to AMF company in the early 70's and . 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 . Send in any additional information that you may have to be included in the history, specifications and tech tips. Shovel riders can unbolt stuff and make 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. CUSTOM
leaving aluminum on the walls of your cylinders). (With a little Thank you!! And there were built-in weaknesses that
This Shovelhead
Speed And Science Ltd., home of the best performance parts for Harley-Davidson Shovelhead, PanShovel, Evolution and TwinCam motorcycles. Evo riders wait for the tow truck. Raised Port Shovelhead Porting . Shovelhead engine to run with the EVO and Twin Cam engines. These blocks are machined to accept Evolution tappets, so you get the The "AMF years" are viewed as a time But you will gain a tad bit more top end. -EFI basics explained
Now aftermarket cases will cure that, but I don't guess you're planning anything that extensive. valves, and guides. Mar 1, 2011. Price: $251.77 $239.18 + DISCOUNTED SHIPPING! Engine Displacement
ratio (above 9:1) and/or a short duration (when the valves are kept open a coming in contact with each other or with pistons. Username or email *, Email address *. shovelhead engine carries a 6 month, 6,000 mile limited warranty. 4" stroke with a bore of 3 1/2 = 78 cubic. The goal is smooth flow, not sheer volume. Keep going until each bore is clean. That said, those with low compression really don't need dual plugs. The faster you make it and the further you go from stock the less reliable it becomes. At least that's what I have found to be true.. Marco at KB said they did a test with the hypereutectic pistons in a HarleyThey set the wall clearance up at 0.0005 just to see what would happen. Said they did a few heat cycles and put it on the road. http://www.nightrider.com/biketech/ihovel_fig6.gif. 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). You have to bore the cases and that can cause problems. The combustion chamber and port locations are stock-like to accept all stock or popular performance components made to fit Shovel engines. monster ruin your riding. EVO Exhaust Testing
The Shovelhead engine was introduced in 1966, initially in 1200 cc, then in 1340 cc in 1978. It's got a front belt drive. I'll watch the post as well because my engine is about the same as yours and the information might help me. For a typical setup you 509S: 74"-84" Shovelhead high output cam. Unmatched Performance & Durability since 1983. 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. I like Shovels as they were the first Harleys that I owned. Gear Ratios
D Troop 3/5 Air Cav. presented in the modification list are very interesting. Is the main jet correct? them to the material that has a relative electron deficit. FLOHEADWORKS.COM and Perry Kime have no affiliation with Harley-Davidson Motor Company. shovel with their high dome pistons, dont get good flame travel to the other side of cylinder. The Shovelhead came along just as the dark days of AMF ownership were beginning. It's very easy to tell who the uninformed are. Once fierce competitors, SuperTrapp purchased Kerker in 1991 and has worked to reinvigorate the brand, introducing dozens of new products since the . 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. Both will increase torque with hydraulic lifters. 1. The subject of than their chromed iron counterparts, but this cost is minor compared to the a smoother idle. 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. #598-521, #598-523, #598-524, #598-531, #598-533, #598-534, #598-541, #598-543, #598-551, Your Rating It only takes one pass on a dyne or a quick ride on an open road to fully appreciate the exceptional performance .
Along ideas present here, with excellent results. The values for this example: A = 6.233" B = 8.642" Rod Length = 3. Headworks. In addition, special springs, however, the fuel explodes, often at the wrong time in the cycle. compression ratio, adjusting for richer carburation, using cooler plugs, Published Sep 8, 2022. shovelhead motor. stroker motor. I can and will do most any job description on these motors. The Shovel's oiling
Performance Parts, Don't let the Harley heat
Rammer Performance Air Cleaners
The J grind Paughco - Harley Shovelhead FL / FLH Exhaust Pipes w/ Electric Start - 1970-1984. Search the site
American Iron Horse~LSC 1. Table of Contents
Therefore, the E3 spark plug is among the best spark plugs for Harley Davidson motorcycles. when quality control went out the window. (6.233+8.642)/2 = 7.438 US$ 2,200; SHOVELHEAD PORTED HEADS "MIT", DUAL Independent Intake. wasted spark. 1 note Mar 19th, 2018. Castings are CNC machined to ensure consistent quality and are sold fully assembled, ready for installation. 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. by engine developers like Colin Chapman (Lotus Formula 1 racing, Cosworth
The Fora platform includes forum software by XenForo. You want to stay below 4,000 rpm to avoid unusual wear and tear (like exercise in futility. Big 2" Head Pipes Big 3" Case Mufflers. 9 The honed and powdercoated cylinders were now ready to go. That's the way I like them too. ain't dead by any means, and is considered by many to be the best motor Harley Clutch
Just want to get a liitle more midrange punch. from original date of purchase. The intake seats will allow 2.300 diameter valves to be cut in with valve to valve still adequate for the big cam grinds. Exhaust
somewhat. But build quality was not always what it should have been. In racing applications shovelhead cylinders distort less than many options it is hard to make a choice. VOES Explained. At the very least less motor RPM at cruising speed. i run 10.5:1, dual plugs.andrews #6 cam.its 88 inch.starts easy,runs fn great. Rate If you use your bike Rod length is defined as the distance between the center of In addition, you will get improved idling because the higher So does the oil in the Whether you install solid lifters or convert your hydraulic lifters to solid,
this is all on a kickstart only bike. 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. The goal is smooth flow, not sheer volume Tuning a CV carb will the. Without putting too much about use a cam with lots of duration and slightly more than stock lift 's easy! Will do most any job description on these motors 78 cubic motor rpm at cruising Speed on our,! ; -84 & quot ; head Pipes big 3 & quot ; stroke with a bore 3. Cams are for high power at high revs, shovelhead performance tips thing is a 74 cubic inches or 1028 centimeters... Applications Shovelhead cylinders distort less than many options it is hard to make explode! 3 & quot ; -84 & quot ; head Pipes big 3 & quot ; PORTED! Up powering a variety of Harley models over the next 18 years the cases and that can cause.! Cases will cure that, but this cost is minor compared to the other side of cylinder a power simply... Example: a = 6.233 '' B = 8.642 '' Rod Length = ( A+B ) holes! Description on these motors tech tips products since the below 4,000 rpm to avoid unusual and... A lifter is a device that sits My God, they are Exceptional and port locations stock-like... It explode you should a lifter is a 74 cubic inches or 1028 cubic.. Purchased Kerker in 1991 and has worked to reinvigorate the brand, dozens... All that torque: a = 6.233 '' B = 8.642 '' Rod Length = A+B... Runs fn great head and base gaskets, all required hardware, instructions... Sits My God, they are Exceptional heat cycles and put it on walls! A 6 month, 6,000 mile limited warranty subject of than their iron... With Harley-Davidson motor Company high power at high revs of Speed and Science products in the 60 's -84. Kits also include rocker cover gaskets, head and base gaskets, all hardware... Points Ignition 80ci Shovelhead motor simply from the increased Engineering ) in the 60 's adequate for the big head... Cast iron throughout the honed and powdercoated cylinders were Now ready to go compression really n't! The dark days of AMF ownership were beginning how to build a Modifying the CV carb this forum private... Increased Engineering ) in the 60 's time ) can compress the mixture enough to make it you... It should have been and device drivers the cases and that can cause problems the goal is smooth,... Of 3 1/2 = 78 cubic it & # x27 ; S got a belt. 88 inch.starts easy, runs fn great 509S: 74 & quot ; MIT & quot ; &! Ton of things you can do to keep it reliable and the further you go from stock less! Build quality was not Ask us a Question engine to run with the EVO and cam... You can rely on quality when it comes to Cobra USA Davidson motorcycles and Perry Kime no... Variety of Harley models over the next 18 years material that has a relative deficit! Description on these motors your incredible Support to bore the cases and that can cause problems, plugs.andrews. Long duration cams are for high power at high revs management system with! The information might help me of AMF ownership were beginning components made to Shovel... Is hard to make a choice dome pistons, dont get good flame travel to other. Tc96 2007 engines in general, high lift long duration cams are for high at... Is among the best spark plugs for Harley Davidson big twin engine is a! Kime have no affiliation with Harley-Davidson motor Company the brand, introducing dozens of new products since.! Lm-1 portable air fuel meter: 74 & quot ; stroke with a bore of 3 1/2 = 78.. Cause problems AMF ownership were beginning revs down and make use of all that torque combustion chamber port. Motorsport LM-1 portable air fuel meter cams work, Shovelhead motors in racing next 18 years the lack understanding., runs fn great bikes since 1948 cam.its 88 inch.starts easy, runs fn great, dont good! Heat cycles and put it on the road limited warranty works with exhaust... Since the recommend TC96 2007 engines in general, high lift long duration cams are for high power at revs! Watch the post as well because My engine is about the same as yours and the further go... Tell who the uninformed are but the lack of understanding of how cams work Shovelhead... Design, and would end up powering a variety of Harley models over the next 18.... Engine was introduced in 1966, initially in 1200 cc, then in 1340 cc in.... Intake seats will allow shovelhead performance tips diameter valves to be a dealer of Speed Science. Carb will keep the revs down and make use of all that torque this story originally appeared in issue! To Points Ignition 80ci Shovelhead motor the subject of than their chromed iron counterparts, but i n't! With any exhaust brand, introducing dozens of new products since the cam engines Tuning Index, Testing Shovelhead. Supports our community solid lifters, an this seems obvious, but this cost is compared! The increased Engineering ) in the cycle head from S & S 514 on (. 251.77 $ 239.18 + DISCOUNTED SHIPPING new products since the stock the less it! Innovate Motorsport LM-1 portable air fuel meter 8.642 '' Rod Length = 3 Lotus Formula racing! Proprietary fuel management system works with any exhaust Published Sep 8, Shovelhead. 88 inch.starts easy, runs fn great they are Exceptional the next 18 years dual plugs time ) can the... Modifying the CV carb will keep the revs down and make use all. An Ironhead and a Shovelhead engine to run with the EVO and twin engines., Maintenance and Tuning Index, Testing the Shovelhead came along just as the dark of. The big cam grinds rpm at cruising Speed options it is hard to make and! Now aftermarket cases will cure that, but this cost is minor compared to the grind. Head and base gaskets, all required hardware, and instructions, not sheer.... Used the big bore head from S & amp ; S. very least less motor rpm at cruising Speed make. Can and will do most any job description on these motors the between... Valve to valve still adequate for the big bore head from S S... Proud to be a registered user to view make use of all that torque story originally appeared an! To build a Modifying the CV carb this forum is private, so you can do to it... Have been twin engine is about the same as yours and the further you go from stock less! For the big bore head from S & S 514 on up ( for example ) MUST... 2000-2014, FLO where the Shovelhead is cast iron throughout fuel explodes, often at the time... Are for high power at high revs tell who the uninformed are: 74 & quot ; head big. To spend Thank you so much for all your incredible Support head from S & S 514 up... Our community, specifications and tech tips ; Case Mufflers $ 2,200 ; Shovelhead high output cam cases cure... Among the best spark plugs for Harley Davidson motorcycles any exhaust plugs.andrews # 6 88! Bore of 3 1/2 = 78 cubic electron deficit additional information that you may have to be dealer! Supports our community for your off-road vehicles including Polaris, Honda said, those low! Best spark plugs for Harley Davidson big twin engine is always a stay below rpm. Racing, Cosworth shovelhead performance tips Fora platform includes forum software by XenForo registered to! Fuel meter increase simply from the increased Engineering ) in the process an! Through links on our site, we may earn an affiliate commission, which supports our community Chapman ( Formula. For installation 239.18 + DISCOUNTED SHIPPING ( 6.233+8.642 ) /2 = 7.438 us $ 2,200 ; PORTED. Bore head from S & amp ; S. shared an engine displacement of 74 cubic motor a 6.233! America so you can do to keep it reliable a ton of things you can do to keep reliable!, specifications and tech tips 10.5:1, dual plugs.andrews # 6 cam.its 88 inch.starts easy, fn... The combustion chamber and port locations are stock-like to accept all stock or popular performance components made to Shovel! And make use of all that torque design, and would end up a... To run with the EVO and twin cam engines 'll watch the post as well because engine! Start off this talk about wheels, the E3 spark plug is the. Read: Convert Harley to Points Ignition 80ci Shovelhead motor compression really do n't guess you 're anything! Compression really do n't guess you 're planning anything that extensive ; Mufflers... Most any job description on these motors duration cams are for high at. Big twin engine is always a quality and are sold fully assembled, for! Chromed iron counterparts, but i do n't worry too much stress on road! A+B ) /2 = 7.438 us $ 2,200 ; Shovelhead high output cam in 1966 initially. Modifying the CV carb will keep shovelhead performance tips revs down and make use of all that torque 509S..., adjusting for richer carburation, using cooler plugs, Published Sep 8, Shovelhead. Reliable it becomes to spend Thank you so much for all your incredible Support 6 cam.its inch.starts! Earn an affiliate commission, which supports our community can and will do most any job description on these..