Hypercoils 10" Coil-Over Spring - 2-1/2" I.D. - 450 lb. Fire Suppression System Activation Head Kit includes 7 steel bushings

Kit includes 7 steel bushings and spring clips

125 in Long

Rocker stud diameter: 7/16"

1960-1974 Chevrolet C10 Pickup

The larger plenum version #2890 for 4500 Series carburetors has an increased intake runner area and is capable of 800+ hp operating in the 3

Hypercoils 10" Coil-Over Spring - 2-1/2" I.D. - 450 lb. Fire Suppression System Activation Head Kit includes 7 steel bushingsHypercoils are manufactured from the highest quality chrome silicone steel and high tensile chrome silicone steel available in the world. The material used in producing Hypercoils undergoes two separate magnaflux inspections. Once before manufacture and again after coiling. These inspections insure the wire is free from surface imperfections which, if gone undetected could lead to spring failure. The life of a suspension coil is directly related to