Hypercoils 11" Rear Coil Spring - 5" O.D. - 500 lb. Spark Plug Gap Tool This 100% bolt-on kit use

This 100% bolt-on kit use existing bolt holes and supplied hardware

Rotationally Molded

Today's cams have more aggressive lobes

1976-1985 Chevrolet K5 Blazer

Hypercoils 11" Rear Coil Spring - 5" O.D. - 500 lb. Spark Plug Gap Tool This 100% bolt-on kit useHyperco's neverending pursuit of Performance has lead to yet another breakthrough in Conventional Motorsports spring design the "Dynamic Travel Response" enhancement! HYPERCOILS because the most important race is the one you are in. Hyperco is a supplier of precision engineered, high performance suspension springs and related components supporting the Motorsports, Street Performance, and Off Road Powersports markets. Our stock and custom suspension