FLOTEK Thumper Cylinder Head - Assembled - 2.020 in/1.600 in Valve - 185 cc Intake - 60 cc Chamber - 1.460 in Springs - Angle Plug - Small Block Ford Combination Valve Black Epoxy Coated Drop-Forged Steel

Black Epoxy Coated Drop-Forged Steel Hardware

Wire harness with 20-amp inline fuse included

Brinn dirt bellhousing assemblies weigh 11

Engine Valve Spring Shim

FLOTEK Thumper Cylinder Head - Assembled - 2.020 in/1.600 in Valve - 185 cc Intake - 60 cc Chamber - 1.460 in Springs - Angle Plug - Small Block Ford Combination Valve Black Epoxy Coated Drop-Forged SteelProduct Description: Cylinder Head Thumper Assembled Flat Tappet 2. 020 in 1. 600 in Valve 185 cc Intake 60 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.