The CP Pistons Bullet Race Series piston set for Ford 408ci applications is a matched eight-piece kit intended for specific engine builds. The source lists a 4.030-inch bore with a 1.200-inch chamber and a -25cc change, supplied as a set of eight pistons and identified in the catalog as the Bullet Race Series configuration.
CP Piston Bullet Race Series Ford 408Ci Std-Tfs 4.030 Bore 1.200 Ch -25CC Set Of 8