Wiseco Piston Kit - +0.010" - Evolution Big Twin 1340 cc - K1666

Forged from high-silicon aluminum alloy for maximum strength and dependability. Kit Includes pistons, rings, retainer clips and chrome piston pins. Includes X-Ring package (0.062" top ring, 0.062" compression ring, and 0.158" oil ring). Pistons are made in the USA.