*STROKER/CUSTOM PISTONS*
CP custom pistons are made to order with 2618 aluminum forgings that are application specific. Choose any desired bore size and compression ratio, as well as added features like 9310 alloy wrist pin upgrade (5100 series is standard), anti-detonation grooves, lateral and/or vertical gas ports, and chamfered pin boss. All customs include premium ring pack with ductile iron plasma top rings, tapered second rings, low tension oil rings and spiral locks.
Part Number: BC7139
Fits: Evo X 2008 to 2014