Bringing together the most advanced valve spring components together in one package, the COMP Cams' GM L83/L86/LT1 and LS7 Conical Valve Spring Kit is the ultimate tech forward spring package available. Our 7230 conical valve springs offer the best natural frequency damping possible without wear, heat/friction or risk of interference. Combined with our lightweight titanium retainers, hardened spring seats, premium seals and super locks, this is the most advanced spring kit available for L83, L86, LT1 and LS7 engines.