The CP Pistons Bullet Race piston set for Oldsmobile 455 applications is listed with a 4.185" bore, 4.250" stroke and a 6.735" rod length with a -12cc figure. Offered as a set of eight, these pistons are supplied to match the Olds 455 geometry described, giving correct piston-to-combustion-chamber sizing for rebuilds and custom short-block projects.
CP Piston BRS Olds 455 -12CC All 6 Deg 4.185 Bore 4.250 Stroke 6.735 Rod Set Of 8 (MTO Non-Cancel)