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 - 2.125 / 1.750 in Valve - 215 cc Intake - 68 cc Chamber - 1.550 in Springs - Aluminum - Big Block Buick - Each