The CP Pistons Bullet Race (BRS) piston set for Chevy 417ci offers explicit chamber and compression sizing for custom builds. Supplied as a set of eight, the listing specifies a 4.135" bore, 1.062" chamber height and a 14.4:1 compression ratio. This matched eight-piston package is meant for engines requiring those exact displacement and compression dimensions.
CP Piston BRS Chevy 417Ci 4.135 Bore 1.062 Ch 14.4:1 Cr - Set Of 8 (MTO Non-Cancel)