CP-Carrillo Bullet series pistons are designed specifically to fit all of 23° cylinder heads on the market today. Pistons are proudly made in the USA from 2618 forgings featuring symmetrical valve pockets, .310 deep intake pockets, 1.5 mm steel gas nitride top ring, 1.5 mm Napier second ring, 3.0mm oil ring and include .927 x 2.500 pins with a .150 wall standard. Designed for 3.750" Stroke on a 6.000" Connecting Rod. Compression ratio with 64cc heads estimated to be 9.5:1.
Part #: 18726