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 Performer RPM Olds 350

Performer RPM Olds 350

tuned for each engine family and will dramatically reduce

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

1972-1997 Ford F-350

1970-1974 Chevrolet P20 Van

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 Performer RPM Olds 350Product 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.