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

Rocker stud diameter: 7/16"

and Small Block Ford)

Mounts to front of block using existing water pump bolt holes

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