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The CP Pistons Bullet Race piston set for BBC 509ci engines is a matched eight-piston kit listed with a 4.500-inch bore and a 1.245-inch chamber spec plus a +46.9cc reference. Supplied as a full set, these pistons are intended for big-block Chevrolet rebuilds and custom assemblies where the listed bore and chamber figures correspond to the engine requirements.
CP Piston BRS BBC 509 Ci 4.500 1.245 Ch +46.9CC Set Of 8 (MTO Non-Cancel)
