Harley Davidson Evolution Big Bore Kit

Click on the displacement below for more information about each kit.

Harley davidson evolution big bore kit. This kit includes SS 3-58 bore aluminum Sidewinder cylinders and forged pistons a 4-58 stroke dynamically balanced SS flywheel assembly. Even if youre keeping your piston displacement the same size youll find plenty of Harley-Davidson top end kits or a Harley top end gasket kit to get your bike out of the garage and back on the road in top running condition. Only for your fathers touring bikethis is a rip-it-up blast-around-town Saturday-night-in-the-city kind of performance package.

Bolt-on big bore kits and monster big bore kits. An SS 96 3-58 Sidewinder big bore stroker kit is an economical route to a larger displacement engine. 1401981 Mfg Part.

349 APR offer is available on new HarleyDavidson motorcycles to high credit tier customers at ESB and only for up to a 60 month term. We offer several bolt-on and monster big bore kit solutions for the evolution engine family. The APR may vary based on the applicants past credit performance.

Our kit includes two 3-58 silver cylinders which have been honed for final fitment with Wiseco 9251 compression flat top pistons and rings. For even more torque and power with your stock cylinders let us bore them all the way to 3938 which gives either 98 or 107ci depending on the year of your bike. Case boring will be required for final fitment.

Bolt-on big bore kits and monster big bore kits. Big Bore Kit Harley Davidson Evo 1340 80 To 83. Includes front and rear cylinders bored for 3-58 big bore pistons.

Our most popular 80 Evo performance package capable of producing 90 horsepower and 90 ft. 1250cc Nikasil Bolt-on big bore kit. Includes 101 Wiseco pistons and rings Black finish cylinders and a complete top end gasket set for Harley Davidson Big Twin Evolution 1340 1985 1999.