LS Head Bolt Kit - 04-Up (1-Head)

The LS Head Bolt Kit - 04-Up (1-Head) by BRIAN TOOLEY RACING is engineered for LS-platform engine builders and serious enthusiasts who demand precision fastening for cylinder head assembly. This single-head bolt kit addresses the critical need for OEM-specification or upgraded fastening solutions on fourth-generation LS engines (2004 and newer), where head bolt integrity directly impacts combustion sealing, gasket compression, and long-term engine reliability. Built to meet or exceed factory torque specs, this kit ensures consistent clamping force across the entire head surface—a non-negotiable requirement for street, race, and forced-induction applications.

BRIAN TOOLEY RACING's head bolt kit utilizes premium-grade fasteners with precise thread geometry and surface finish to minimize friction and maximize preload accuracy during installation. The kit includes all bolts required for one complete cylinder head, eliminating the need to source mixed specifications from multiple suppliers. These bolts are designed to withstand the thermal cycling and pressure loads inherent to modern LS combustion, with tighter tolerances than many OEM equivalents, making them ideal for builds targeting higher boost levels, nitrous injection, or extended track use. Proper torque sequence and application of assembly lube are critical—following the factory specification ensures uniform clamp load and prevents head gasket failure.

This bolt kit is essential for engine builders, performance shops, and dedicated gearheads rebuilding LS-platform powerplants on 2004 and newer vehicles, including Corvettes, Camaros, Silverados, and universal LS swaps. Whether you're running stock boost or aggressive forced-induction, maintaining proper head bolt preload prevents leaking, detonation-induced head lift, and catastrophic gasket failure. Installation requires standard torque wrenches calibrated to factory specifications (typically 22 ft-lbs initial, 37 ft-lbs final in multi-step sequence); consult your engine manual for exact specs. Compatible with all standard LS head gasket types and cylinder head configurations designed for 2004-and-newer LS engines.