Gen III Hemi Perf. RPM Cylinder Head AssembledCylinder Head - Performer RPM - Assembled - 2.165 / 1.650 in Valves - 202 cc Intake - 83 cc Chamber - 1.300 in Springs - Aluminum - 5.7 L - Mopar Gen I...
SBM Performer RPM Cylinder Head - BareCylinder Head - Performer RPM - Bare - 2.020 / 1.600 in Valves - 171 cc Intake - 63 cc Chamber - Angle Plug - Aluminum - Small Block Mopar - Each
BBF Performer RPM Cylinder Head - Assm.Cylinder Head - Performer RPM - Assembled - 2.190 / 1.760 in Valves - 292 cc Intake - 95 cc Chamber - 1.550 in Springs - Aluminum - Big Block Ford - Each
BBC Performer RPM 454-R Cylinder Head - Assm.Cylinder Head - Performer RPM - Assembled - 2.190 / 1.880 in Valves - 315 cc Intake - 118 cc Chamber - 1.550 in Springs - Angle Plug - Aluminum - Big Bl...
BBC Performer RPM 454-R Cylinder Head - BareCylinder Head - Performer RPM - Bare - 2.190 / 1.880 in Valves - 315 cc Intake - 118 cc Chamber - Angle Plug - Aluminum - Big Block Chevy - Each