The CP Pistons Bullet Race (BRS) piston set for Big Block Chevy 583 is supplied as a complete matched set of eight with specific chamber displacement. The listing shows a 4.605" bore and a 1.220" chamber with +46.9cc, sold as an MTO non-cancel set of eight. Use this set when a build specifies those exact bore and chamber volume changes.
CP Piston BRS Big Bock Chevy 583 4.605 Bore 1.220 +46.9CC Set Of 8 (MTO Non-Cancel)