Features & Benefits:-

* Use with performance exhaust, air cleaner, S&S 585 bolt-in cams & EFI tune to produce massive horsepower gains. Tech Tips:-

* Will Not Fit Twin Cooled Models.

* Pistons may be slightly more noisy than stock.

* Replacement Ring Set # SS940-0041.

* Follow Ring End Gap & Piston to Cylinder Clearances as per the supplied Manufacturers Instructions.

* Pull the engine down first & measure the existing bore to determine if oversize pistons are required PRIOR to purchase, we do not take back piston kits. The onus is on the assembling technician to validate the cylinders & required pistons.

Proudly Made in the USA by S&S Cycle!