Cylinder Head - Performer - Assembled - 2.020 / 1.600 in Valve - 185 cc Intake - 70 cc Chamber - 1.460 in Springs - Straight Plug - Aluminum - Small Block Chevy - 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