Cylinder Head - Gen X - Assembled - 2.055 / 1.575 in Valves - 225 cc Intake - 65 cc Chamber - 1.300 in Springs - Angle Plug - Aluminum - GM LS-Series - Each
Cylinder Head - E-Series E-205 - Assembled - 2.080 / 1.600 in Valve - 205 cc Intake - 60 cc Chamber - 1.550 in Springs - Aluminum - Small Block Ford - Pair