Brodix Cylinder Head - Dragon Slayer - Assembled - 2.080 / 1.600 in Valves - 225 cc Intake - 68 cc Chamber - 1.550 in Springs - Angle Plug - Aluminum - Small Block Chevy - Pair-1321001--Notes: With 1.550 dia. springs & steel retainers. Use w/roller cam. State Restrictions- Canada Restriction-NO -Emission Warnings--NO Truck Freight ---NO