Cylinder Head - Performer RPM - Assembled - 2.090 / 1.660 in Valve - 170 cc Intake - 72 cc Chamber - 1.550 in Springs - Aluminum - Ford FE-Series - Each
Cylinder Head - Performer RPM - Assembled - 1.900 / 1.600 in Valve - 170 cc Intake - 60 cc Chamber - 1.460 in Springs - Aluminum - Small Block Ford - Each
Cylinder Head - Performer RPM - Assembled - 2.190 / 1.760 in Valve - 292 cc Intake - 95 cc Chamber - 1.550 in Springs - Aluminum - Big Block Ford - Each
Cylinder Head - Performer RPM - Assembled - 2.020 / 1.600 in Valve - 171 cc Intake - 63 cc Chamber - 1.460 in Springs - Aluminum - Small Block Mopar - Each