Harley Davidson 103 Engine Upgrades

Just like with many cars you can get kits to upgrade the internals of your Harley Davidson motor for better performance.

Harley davidson 103 engine upgrades. The ultimate is the Full House Stage 3 option that sees the pistons and barrels being changed and your 96 Cube increased to 103 Cube 1700 cc for a power output that goes beyond 88 kW to anywhere just above 100 kW. We start with the increased diameter cylinder and high compression pistons as the Stage 3 upgrade kit. Bikes originally equipped with Twin Cam 88 engines can upgrade to 95 or 103CI displacement and Twin Cam 96-equipped models can be repowered with 103 or 110CI engines based on specific model fitment.

Overall the Harley Davidson 103 engine is powerful and worthy. A great combination to upgrade an 88 is an over square 107 motor. Stage 4 Daddy wants to GO FAST.

You all are aware of the reliability of the 96 Harley engine. Rich with vivid photography insightful commentary and. Well we took some time and did in fact put our heads together and under much scrutiny of our editors we have listed a countdown to performance nirvana and in what order in which to do so.

Hello everyone I just joined this site and have been reading through all of the forums relating to engine upgrades although Ive been riding for almost 40 years this is my first Harley it looks like the one thing most guys can agree upon is that the 103 doesnt have enough power out of the factory. A full Cobra exhaust system a fuel management system and Cobras Power Flow air cleaner assembly. Harley Fast means the bike has taken in for service and been modified to be quicker than other stock hds.

Thats a 96 or 103 Harley putting out 110-plus hp with a torque number to match or with a few quick parts substitutions bumping those numbers up into the 125 ranges torque and horsepower. A Harley Stage 1 upgrade involves upgrading your bikes air cleaner slip-on exhaust and fuel tuning to allow your motor to breathe more freely. We chose upgrading the chassis suspension and braking first over just simply adding gobs of horsepower.

This is why we provide the books compilations in this website. I wanted to make a video to compare both the 103CI Harley Davidson Twin Cam motor in the 2015 Road Glide against the new 107CI Milwaukee 8 motor in the 2018. Harley doesnt release horsepower numbers.