Description
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 measure 3.9975″ when new.
* .0025″ Clearance with stock 4.00″ bore.
* Pistons may be slightly more noisy than stock.
* Replacement Ring Set # SS940-0040.
* Follow Ring Eng Gap & Piston to Cylinder Clearances as per the supplied Manufacturers Instructions.
Proudly Made in the USA by S&S Cycle !