Hypercoils 12" Front Coil Spring - 5-1/2" O.D. - 800 lb. Air & Fuel Delivery Deals Constructed out of cast A356-T6

Constructed out of cast A356-T6 aluminum and uses a proprietary internal bolt design to help increase the flow and provide a solid seal void of leaks or deformities

1975-1980 GMC Jimmy

Valve springs

Water Pump Cartridge

Hypercoils 12" Front Coil Spring - 5-1/2" O.D. - 800 lb. Air & Fuel Delivery Deals Constructed out of cast A356-T6Hypercoils 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