FLOTEK Thumper Cylinder Head - Assembled - 2.020 in/1.600 in Valve - 185 cc Intake - 62 cc Chamber - 1.460 in Springs - Angle Plug - Small Block Ford R10004S 68:1 low gear ratio is

68:1 low gear ratio is perfect for all dirt and asphalt applications

The Centerforce I Clutch Pressure Plate has been designed as a high-quality entry-level performance pressure plate for those in need of a superior stock replacement (disc sold separately)

XFI Street

1967-1982 Chevrolet K20 Suburban

75 in Top Diameter

FLOTEK Thumper Cylinder Head - Assembled - 2.020 in/1.600 in Valve - 185 cc Intake - 62 cc Chamber - 1.460 in Springs - Angle Plug - Small Block Ford R10004S 68:1 low gear ratio isProduct Description: Cylinder Head Thumper Assembled 2. 020 in 1. 600 in Valve 185 cc Intake 62 cc Chamber 1. 460 in Springs Angle Plug Aluminum Natural Small Block Ford Sold Individually Flo Tek manufactures aluminum cylinder heads for big block Chevys and small block Chevy and Fords. Each head comes preassembled with valves and springs.