HARLEY 61 inch Overhead Valve 3-5/16 inch Piston Set .005 Oversize Fits 1936-1940 EL,

Piston set with 3-5/16 inch bore is .005 oversized. Set includes hasting 3 piece ring set 2 wrist pins and 4 circlips. Pistons have a steel expansion control strut cast. *NOTE: Run engine at moderate speeds for at least 500 miles avoiding excessive running in lower gears in order to properly break-in new pistons and rings. FITS HARLEY: 1936-1940 EL,