The CP Pistons Bullet Race Series set for Chevy LS1/L92 lists a 3.905" bore, 1.300" compression height, and a 9.0:1 compression ratio with 68cc head volume and a -9.7cc piston indication in an eight-piece set. These dimensional and combustion-volume cues are provided to enable builders to confirm piston selection for LS1/L92 applications requiring the specified specs.
CP Piston Bullet Race Series Chevy LS1 15/L92 3.905 Bore 1.300 Ch 9.0:1 68 Head CC -9.7 CC Set Of 8