The CP Pistons Bullet Race Series piston set for Chevy 358ci applications is a matched set of eight flat-top pistons sized to the listing. The specification lists a 4.045 in bore and flat-top crowns to establish compression and displacement targets, providing the core dimensions builders use to verify clearances and chamber volume for that 358ci configuration.
CP Piston Bullet Race Series Bcrs1021-045 Chevy 358Ci All 23 4.045 Bore Flat Top - Set Of 8