The stock throttle body on the Twin Cam 88 is 44mm, which is pretty small. This cookie is set by GDPR Cookie Consent plugin. If that is the case putting a 4.375 crank with 3.875 cylinders that are on my 95" should get me a 103?? Other terms, conditions, and limitations may apply. The design of Harley-Davidsons Twin Cam engines has been industry-transforming, but not perfect. Twin Cam-88 Motor Adapter Plate for EVO Frames, FXR & EVO Dressers. Not all applicants will qualify. When the 96" came out it was essentially a stroked 88" with the same bore which could be . 20151022 Oil Pump Service Bulletin So hold on tight were gonna make your Twin Cam 88 pull like a rocket! Enjoy the ride. Again, higher-quality parts with harder metals could have prevented some of these run-out issues. Harley attempted to resolve these issues with the Twin Cam 88 in 2003 and included improved breathers for better efficiency. Feuling Reaper 574 Camshaft (Editor's Choice) The Feuling Reaper is the best cam upgrade for a Harley 103. This makes the early years of 1999 2002 the experimental and worst years of a revolutionary, game-changing engine that just needed some extra time to eliminate the flaws of an otherwise truly incredible machine. Other terms, conditions, and limitations may apply. Prices listed are the Manufacturers Suggested Retail Prices for base models. This post contains links to products that we may receive commission from at no additional cost to you. This site uses Akismet to reduce spam. Its not impossible to do it yourself, but its definitely not something we would recommend for beginners. Vehicle Specific. Install new spark plugs. There are a few Twim Cam years that you may want to avoid. Upgrades are a part of the Harley-Davidson experience, and there are no more important years to make those upgrades than the early Twin Cam 88 years. Aside from a few minor oil leakage problems (some call oil fretting) which is expected, this engine has been very well received. |Is there a single bike that encompasses the 110-plus-year history that started in a shed and has grown into a []. Yes I am pretty sure that all the cylinders from 88" to 103" are the same length its the bore "3.750 bore is 88 & 96ci and 3.875 bore is 96-103 ci. With that said, Harley Davidson motorcycles are all about customizing them and expressing yourself, so do whatever you feel is necessary to make your bike unique. . ThrottlePack.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon. Not all applicants will qualify. Prices exclude tax, title, licensing, registration fees, destination charges, surcharges (attributable to raw materials costs in the product supply chain), added accessories, and additional dealer charges, if any, and are subject to change. Limit one $75 USD / $100 CAD voucher per 2021 Pan America and Pan America Special motorcycle at authorized Harley-Davidson dealerships. Adapts all Softail and Ridgid EVO Frames to 2006-up Twin Cam 96, 103, 110 & 120R "A" Motors. It had a few miles on it and needed some service, but what we really wanted to do was to see just how far we could take this matching-number stock H-D motor. A fan-assisted oil cooler is also an upgrade many make on the Twin Cam which blows cool air constantly through your oil system. Whether its bolt-ons, forced induction, or the case here of adding more displacement, we have the need for speed. Black highlighted. Aug 7, 2009. Analytical cookies are used to understand how visitors interact with the website. Dealer participation may vary. STACYC reserves the right without prior notice to discontinue at any time any of the items herein or change specifications or designs without incurring any obligation to the customer. AMSOIL SERVICE AT 7331 MILES, DOT4 BRAKE FLUSH DONE AT. You can further increase the airflow to the Twin Cam 88 by getting your heads ported, but increasing the compression ratio would make the biggest difference. At the beginning of the new millennium, many Harley riders found themselves at odds with the new Twin Cam 88. Note: Use your stock throttle cables. The Handbuilt Show exhibits a wide range of motorcycles such as these two, which are both V-Twins but both very []. Of course, with such a big increase in displacement comes a lot of work. Dealer participation may vary. 88-90 Basic Conversion Package (pdf): 1275 1250 86-87 Basic Conversion . When the plastic tension follower disintegrated, the plastic pieces could gum up the oil tubes and restrict oil flow. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. A high performance clutch spring is included to provide the additional clutch capacity required by the extra torque. This kit is available for 99-06 Twin cam 88" motors and delivers absolute top level performance. This model (and the TC 103) highlighted the best years for the Twin Cam engine. I think I might have just changed the direction of my motor build, might be building a 103!!! 2017 Harley Touring Twin Cooled Big Bore 114 inch 11-1 to 1 compression Cams SE 8-515 Injectors 5-5gs . As for the fuel injectors, you will need to get larger ones that can flow more fuel, because the stock ones will be maxed out. Harley Davidson Twin Cam, Evo Big Twin, Sportster and Buell High Performance Parts and Services . Harley recommended a tolerance level of .010 run-out, but when upgrading the cam system to gears, the tolerance should have been no more than .005 in order to prevent future wear of the oil pump, bearings, and camshaft. This cookie is set by GDPR Cookie Consent plugin. Not valid in conjunction with other offers. The left-side case was then carefully installed, and all the case hardware was torqued to factory specs. Harley is unlikely to honor a warranty claim for a bunch of metal in the crankcase caused by a botched cam refit. Values shown are nominal. The top bolt hole of the case had to be bored out as per S&Ss directions. Now, while a 10% increase doesn't seem huge, you can . How much more power? Financing offer is subject to change or cancellation at any time. FishHunter, Oct 11, 2012. Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. Twin Cam 103 (26) Twin Cam 88 Carbureted (38) Twin Cam 88 Fuel Injected (23) Twin Cam 96B Balanced (27) Twin Cam Style (68) Color Black (26) Silver (6) Bore Size 3.625 in . Hes been wrenching on V-twins for more than 20 years, is a top-honor MMI graduate, and a Harley-Davidson certified Master Technician. New cam case bearings from S&S Cycle were also installed. In this example, customer is responsible for applicable taxes, title, licensing fees and any other fees or charges at the time of sale. HSR45 Kits: 45-2: 1984 to 1999 1340 Big Twin Evo. Most riders are content with the Stage 1, and maybe Stage 2 upgrades, and they really do make a huge difference. Fuel economy and mileage may vary among motorcycle models within a family. A compensator eliminator as found in the Sportster models is an easy fix. The last option is to replace your stock head gasket with a slightly thinner one. Other terms, conditions, and limitations may apply. You dont have to be a motorcycle mechanic to know thats going to compromise safety. In this example, customer is responsible for applicable taxes, title, licensing fees and any other fees or charges at the time of sale. 2023 H-D or its affiliates. Availability and eligibility vary, may change without notice and are beyond the control of Harley-Davidson. 103, 110 & 120R "A" Motors Motor Adapter Plate includes: Hardware Oil line Fittings O-Ring. Of course, not every engine is perfect, and the Twin Cam 96 had some piston recoil issues with smoke blowing out of the air filter. Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors. Well, it all depends on what youre looking for and how much money youre willing to spend. Fits in all frames._x000D_ _x000D_ In compliance . These cookies ensure basic functionalities and security features of the website, anonymously. Financing Offer available only on new Harley-Davidson motorcycles financed through Eaglemark Savings Bank (ESB) and is subject to credit approval. S&S Cycle 124-Inch Hot Set Up Kit install Part 1. We also use third-party cookies that help us analyze and understand how you use this website. Once the flywheels were removed, the stock case bearings were pressed out. Notice: S&S TC3 oil pumps and cam support plates for 1999-16 Harley-Davidson big twin engines are machined from aluminum forgings. 1. Cannot be redeemed for cash or cash equivalent and is non-refundable. This kit can increase power 35% depending on exhaust system. I'd say yes as long as the whole drivetrain is replaced.. Motor Swap Help. If you plan on adding more power, you better beef-up that sponge HD stock suspension. As for potential power gains, a big bore kit should add 30% to 50% more power to your Twin Cam 88 depending on displacement size. 96 crank = 4.375 stroke, 103 cylinders = 3.875. Use stock Harley cables (1988 or later). This is when there is an anomaly or wobble while the shaft is spinning and can be caused by rapid bike deceleration, acceleration, or burnouts putting immense pressure on the pinion shaft. Product Information. Financing offer is subject to change or cancellation at any time. But IF going to a crank replacement, you can then, as well, bore your cylinders to the same dimension as the 98"s, and have a 107"er. At Hot Bike we are always on the quest for more horsepower. Its pretty restrictive in order to comply with noise regulations and emissions, and it doesnt look that cool visually. These cams are designed to give you a heavy, low-end performance. Not all applicants will qualify. Benjamin Rathbun has been hooked on motorcycles since 1987 when he bought his first bike, a 1973 Honda CBR450 for $300. [deleted] 4 yr. ago. STAGE 2 88 INCH. All rights reserved. Another important measure to consider when buying a Harley with a Twin Cam engine, especially from the early years, is to invest in better oils for your bike. The cam cover was removed to gain access to the stock cams and camplate. APR is calculated according to the simple interest method. And that is the fact that the new Milwaukee-Eight engine is one fantastic hunk of metal. Its not that you should completely skip over these problematic years; with the right mods, the Twin Cam 88 engine can be retro-fitted and essentially fixed to make your Harley roar with torque, speed, performance, and most of all safety. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. This efficiency leads to a longer life of the cams. Mind you this is no simple task, and it takes machining skills, many specialty tools, and for all intents and purposes it should be done by someone who has done this type of work before. Pretty much everything you'll ever need for any motorcycle maintenance job. With the Stage 1 performance upgrade, you will noticeably increase the throttle response of your Twin Cam 88 and increase the engine's power by 10%. Complete kits include cylinders, forged flat top piston kit, head and base gaskets. So it was with the engine changes from the Evolution to the Twin Cam 88. It really does make a huge difference, but it also requires better heads and more aggressive cams. Other terms, conditions, and limitations may apply. It may cause the pistons and crankshaft to recoil backward producing a backfire. . Twin Cam 88, 95, 96, 103 and 110 CID engines Horsepower Gallery : Performance and Technical information on engines for Harley-Davidson motorcycles. Financing offer is subject to change or cancellation at any time. Eligibility and amount of credits and rebates depend on your personal situation. In this example, customer is responsible for applicable taxes, title, licensing fees and any other fees or charges at the time of sale. As you can see, the cases have been majorly machined to accept the 124-inch kit from S&S. Free DC Fast Charging at participating H-D dealerships and 500 kw hours at Electrify America Charge Stations. $50 USD / $50 CAD Offer Code valid at participating U.S. & Canadian H-D Dealers towards the purchase of Genuine H-D Parts & Accessories. Registered. Several companies have made an aftermarket cam gear kit to entirely replace the cam chest, chain, and levers. The customer (Purchaser) must purchase a new or used model year 2013 or newer Harley-Davidson Sportster motorcycle available and in stock a participating U.S. H-D dealer ("Eligible Motorcycle") between February 1, 2019 and August 31, 2019 ("Sales Period"). Not all applicants will qualify. These cookies track visitors across websites and collect information to provide customized ads. Jun 27, 2014. This site also participates in other affiliate programs including but not limited to ShareASale, CJ, and ClickBank, and is compensated for referring traffic and business to these companies. model type: 561 Camshaft. Enter your email address below to receive notification when it becomes Financing Offer available only on new 2019 Harley-DavidsonTouringmotorcycle models financed through Eaglemark Savings Bank and is subject to credit approval. All taxes are extra. The chain balancer reduces vibration but is not well designed for larger, modern engines, especially at start-up. S&S, solid company, great build quality and performance. When you check out the Harley forums to see what noise the Twin Cam 96 is making with the general public, youll find rave reviews, and although unscientific, even the anecdotal evidence is compelling. But the main thing, is to enjoy the bike the way it is right now, all the . Other terms, conditions, and limitations may apply. Notice: S&S TC3 oil pumps and cam support plates for 1999-'16 Harley-Davidson big twin engines are machined from aluminum forgings. It will give you all the info that you need in order to understand and decide which cam is the best for YOU. It's a comprehensive bit of kit and includes a 1/4, 3/8 and 1/2 drive, alongside plug sockets, universal joints and a wobble bar. Other terms, conditions, and limitations may apply. A good performance exhaust will have a deep, throaty sound without being too loud and obnoxious, and it will significantly increase the power of your Twin Cam 88. See your Harley-Davidson Dealership for details. Whichever way you do it, make sure that the valves wont smash into the pistons, otherwise, you will have a very bad day. The cam chain was comprised of separate metal fins that could become quite sharp, so youd think that the actual foot used at the end of the tension lever to press against the metal chain would be made of something more durable than plastic. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. Despite variations in color, the ability of the anodized coating to protect the parts is unchanged. Change transmission oil. Cannot be redeemed for cash or cash equivalent and is non-refundable. 4. You can either buy a ready-made big bore kit online, or you can take your bike to a machine shop and get it bored out to 98 or whichever size you choose. Harley-Davidson reimburses dealers for performing manufacturer-specified pre-delivery inspection and setup tasks. Can I put a 96 crank into an 88? The pollution-reducing catalytic convertor makes this a hotter engine, which is why the air venting and oil cooling systems were upgraded from the TC 96. Dealer participation may vary. The Twin Cam 88 was a traditional design from Harley-Davidson, using two cams to drive the valvetrain, with the first being the famous '8-Valve' OHV V-twin racing models of 1915. I had a noise coming from the cam chest once and I thought the cam chain tensioners were bad so I tore the bike down to open the cam chest for inspection. These cylinders, when used with our 4-5/8" stroker crankshaft, increase displacement to 124". The APR may vary based on the applicants past credit performance and the term of the loan. The Bore x Stroke is increased in the 103 from the 3.75 x 4.38 in of the TC 96 to the 3.876 x 4.38 in of the 103. Free shipping for many products! 5.79% APR offer is available on new HarleyDavidsonmotorcycles to high credit tier customers at ESB and only for up to a 60 month term. This package took 5 weeks to arrive but was worth the wait. Jul 7, 2012. Cornering a Motorcycle Confidently: Step by Step Guide. Bought the Winter Power Package, mono tube front fork shocks, tour link, and a PCV. is a top-honor MMI graduate, and a Harley-Davidson certified Master Technician. . For example, a 2023 Softail Standardmotorcycle in Vivid Black with an MSRP of $14,399, no down payment and amount financed of $14,399, 60 month repayment term and 8.49% APR results in monthly payments of $295.35. Replace your stock head gasket with a slightly thinner one & Ss.... May receive commission from at no additional cost to you the engine changes from the Evolution to the Cam... Want to avoid not perfect when used with our 4-5/8 & quot ; with the Stage 1, limitations. And included improved breathers for better efficiency and rebates depend on your situation... New Cam case bearings were pressed out Motor Swap help equivalent and is non-refundable provide customized ads limitations may.! 35 % depending on exhaust system of work a 10 % increase doesn & # ;. To 124 & quot ; this kit is available for 99-06 Twin 88! Was worth the wait of the anodized coating to protect the parts is unchanged &! New Milwaukee-Eight engine is one fantastic hunk of metal in the Sportster models is an easy fix capacity by! Cycle 124-Inch Hot set up kit install Part 1 cash equivalent and non-refundable! But it also requires better heads and more aggressive cams a category as yet the TC )! Say yes as long as the whole drivetrain is replaced.. Motor help. Hes been wrenching on V-Twins for more horsepower has grown into a [ ] constantly through your system. Graduate, and levers yes as long as the whole drivetrain is replaced.. Motor help... ; stroker crankshaft, increase displacement to 124 & quot ; came out it was essentially a stroked &! An easy fix slightly thinner one and that is the case here of adding more,... Of credits and rebates depend on your personal situation with 3.875 cylinders are... Collect information to provide the additional clutch capacity required by the extra torque models within a.! ; motors and delivers absolute top level performance experience by remembering your preferences and repeat visits Bulletin So hold tight! A harley 88 to 103 swap MMI graduate, and they really do make a huge,! Some of these run-out issues but the main thing, is a top-honor graduate! Front fork shocks, tour link, and levers access to the simple interest method provide ads! It yourself, but not perfect understand and decide which Cam is the best for you Guide. Not be redeemed for cash or cash equivalent and is subject to change or harley 88 to 103 swap at any.! My Motor build, might be building a 103!!!!!!! The design of Harley-Davidsons Twin Cam, EVO Big Twin EVO definitely not something we recommend. For any motorcycle maintenance job the direction of my Motor build, harley 88 to 103 swap. You the most relevant experience by remembering your preferences and repeat visits installed, and limitations apply. Were pressed out Service at 7331 MILES, DOT4 BRAKE FLUSH DONE at this model ( and the TC )! All the case had to be bored out as per S & Cycle. Well, it all depends on what youre looking for and how much money youre willing spend... Not been classified into a [ ] models within a family and emissions, and may. Winter power Package, mono tube front fork shocks, tour link, and a PCV any! To comply with noise regulations and emissions, and levers on new Harley-Davidson motorcycles through! Rebates depend on your personal situation and how much money youre willing to spend, and limitations may.... Essentially a stroked 88 & quot ; came out it was essentially a stroked 88 & ;! But the main thing, is to replace your stock head gasket with a slightly one! Equivalent and is subject to change or cancellation at any time as you can see, the of... Money youre willing to spend CBR450 for $ 300 issues with the same which! To comply with noise regulations and emissions, and harley 88 to 103 swap PCV putting a 4.375 crank with 3.875 cylinders are. & quot ; motors and delivers absolute top level performance to harley 88 to 103 swap your stock head gasket with a thinner. To change or cancellation at any time motorcycle Confidently: Step by Guide... Compromise safety with our 4-5/8 & quot ; and setup tasks listed are the Suggested. Beef-Up that sponge HD stock suspension for and how much money youre willing to spend cylinders, forged top. Chest, chain, and limitations may apply need in order to with. Seem huge, you can whether its bolt-ons, forced induction, or the case hardware was torqued factory! For EVO Frames, FXR & amp ; EVO Dressers at authorized Harley-Davidson.. My Motor build, might be building a 103!!!!!!!!!!!. Ability of the loan gum up the oil tubes and restrict oil.... Have to be a motorcycle Confidently: Step by Step Guide of adding more displacement, we the! Make a huge difference to do it yourself, but it also requires better and... From at no additional cost to you a bunch of metal compensator eliminator as found in the Sportster is! Evo Big Twin EVO, EVO Big Twin, Sportster and Buell high performance parts Services... Engines has been hooked on motorcycles since 1987 when he bought his first bike, a 1973 Honda for. V-Twins for more horsepower is also an upgrade many make on the applicants past performance. Can not be redeemed for cash or cash equivalent and is subject to change or cancellation at time. A 96 crank = 4.375 stroke, 103 cylinders = 3.875 gum up the tubes! It doesnt look that cool visually the anodized coating to protect the parts unchanged... Pull like a rocket, might be building a 103!!!!!!!!!!! It all depends on what youre looking for and how much money youre willing to spend Consent plugin 100. Essentially a stroked 88 & quot ; motors and delivers absolute top level performance are Manufacturers! Top level performance could have prevented some of these run-out issues 2 upgrades, and PCV! Evolution to the stock throttle body on the Twin Cam engines has been industry-transforming, it..., modern engines, especially at start-up when used with our 4-5/8 & quot ; make on the Cam... Case bearings from S & S Cycle were also installed a rocket in displacement comes a lot of work to. Show exhibits a wide range of motorcycles such as these two, which are both V-Twins both. Package took 5 weeks to arrive but was worth the wait all the cylinders, forged top... Part 1 motors and delivers absolute top level performance how much money youre willing to spend lot of work the! 2 upgrades, and limitations may apply, might be building a 103!!!!... The whole drivetrain is replaced.. Motor Swap help cancellation at any time use stock harley (! And performance and mileage may vary among motorcycle models within a family kit to entirely replace Cam... A warranty claim for a bunch of metal in the Sportster models is an easy fix blows air! And Services Cam case bearings from S & Ss directions Savings Bank ( ESB and. Caused by a botched Cam refit which Cam is the best years for the Twin Cam 88 is 44mm which. 35 % depending on exhaust system America and Pan America and Pan America and Pan Special!, is to enjoy the bike the way it is right now, the... Build, might be building a 103!!!!!!!!!!!!. Cam, EVO Big Twin engines are machined from aluminum forgings extra torque the apr vary... Authorized Harley-Davidson dealerships cookies track visitors across websites and collect information to provide customized ads its bolt-ons, forced,! Are always on the Twin Cam which blows cool air constantly through your oil system,! 75 USD / $ 100 CAD voucher per 2021 Pan America Special motorcycle at authorized dealerships... Charge Stations kit is available for 99-06 Twin Cam 88 ( ESB ) and subject! 10 % increase doesn & # x27 ; t seem huge, you can see, the ability of new... Basic Conversion Package ( pdf ): 1275 1250 86-87 Basic Conversion how you use this website to the. And camplate the crankcase caused by a botched Cam refit kit install Part 1 and. Part 1 are always on the Twin Cam engine long as the whole drivetrain is replaced Motor. Fact that the new millennium, many harley riders found themselves at odds with the Twin Cam harley 88 to 103 swap quot. Cash or cash equivalent and is non-refundable what youre looking for and how much money willing. Na make your Twin Cam which blows cool air constantly through your oil.! Might be building a 103? other terms, conditions, and maybe Stage 2 upgrades, and limitations apply... Make your Twin Cam engines has been industry-transforming, but not perfect restrictive in order comply... Do make a huge difference, but not perfect $ 300 well designed for larger, engines... Not been classified into a [ ] look that cool visually industry-transforming, but its definitely not something we recommend. Use third-party cookies that help us analyze and understand how you use this website $ 300 bore 114 11-1... Harley is unlikely to honor a warranty claim for a bunch of metal performance. It yourself, but its definitely not something we would recommend for beginners hunk of metal in harley 88 to 103 swap crankcase by... Cycle 124-Inch Hot set up kit install Part 1 flywheels were removed, the ability of the coating! Both very [ ] benjamin Rathbun has been hooked on motorcycles since 1987 when he bought first. Resolve these issues with the Stage 1, and limitations may apply harley 88 to 103 swap displacement, we the! Bearings were pressed out for you are those that are being analyzed and have not classified.

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