Hypercoils 9-1/2" Front Coil Spring - 5-1/2" O.D.- 750 lb. H766001XL 400M and 429-460 engines

400M and 429-460 engines

AFR's trademark 3/4'' thick cylinder head deck makes them ideal for heavy nitrous or blower applications

inexpensive and is the best insurance for a new cam

1980-1996 Ford F-250

NHRA approved reverse lockout

Hypercoils 9-1/2" Front Coil Spring - 5-1/2" O.D.- 750 lb. H766001XL 400M and 429-460 enginesHypercoils 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