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The CP Pistons Bullet Race piston set for Oldsmobile 455 applications lists a 4.155" bore, 4.250" stroke and a 6.735" rod length with a -12cc specification. Sold as a set of eight, these pistons are dimensioned to suit the Olds 455 combination described and provide the correct piston-to-chamber sizing for accurate compression and assembly in engines using that geometry.
CP Piston Bullet Race Series Olds 455 -12CC All 6 Deg 4.155 Bore 4.250 Stroke 6.735 Rod Set Of 8
