Hypercoils 10" Coil-Over Spring - 1- 7/8" I.D. - 375 lb. 23011613 6-71 / 8-71 Supercharger

6-71 / 8-71 Supercharger

A lean mixture at high boost can destroy an engine in seconds

654" long for use with Oldsmobile 455 with 1442-KIT rocker kit

Inc is a leader in the performance brake industry that challenges the status quo by focusing on engineering design and innovative technology that delivers complete and detail-oriented solutions to our consumers

Hypercoils 10" Coil-Over Spring - 1- 7/8" I.D. - 375 lb. 23011613 6-71 / 8-71 SuperchargerHypercoils 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