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
Cylinder Head - Performer RPM - Assembled - 2.140 / 1.810 in Valve - 210 cc Intake - 84 cc Chamber - 1.550 in Springs - Aluminum - Mopar B / RB-Series - Each