Hypercoils 4" Coil-Over Spring - 2-1/2" I.D. - 350 lb. HASZ20DK these kits have slotted tops

these kits have slotted tops

Available for rectangular LS3 and raised port LS7 enginesFAST is the leading developer of electronic fuel injection systems

They include all the great components of our famous "Ultimate Performance Carburetor Kits" plus the additional hardware that corrodes

Bead Breaker

Provides Proper Spacing

Hypercoils 4" Coil-Over Spring - 2-1/2" I.D. - 350 lb. HASZ20DK these kits have slotted topsHypercoils 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