LS Dual Valve Spring Kit

The Brian Tooley Racing SK001 is a Platinum Dual Spring Kit designed for GM LS-Series engines. This kit offers a 380 lb/in spring rate and has a coil bind of 1.070 inches with an outside diameter of 1.300 inches. It comes complete with locks, steel retainers, Viton seals, and seats, making it a comprehensive solution for engine upgrades. This kit is engineered as a "drop-in" for 15° LS heads and is typically compatible with LS7 heads when used with a .030” shim (Part number SS030). However, it is explicitly stated that this kit will not fit LS9 applications. Brian Tooley Racing, based in Kentucky, is known for designing and producing performance components for popular engines like LS, LT, Godzilla, and Hemi, with an emphasis on optimizing performance while maintaining reliability, all precision-machined in the USA.