BBC Head Bolt Kit 12pt w/S.S.Outer Bolts

The BBC Head Bolt Kit 12pt w/S.S. Outer Bolts from ARP is designed for serious big-block Chevrolet builds where cylinder head clamping force and reliability are critical. This premium fastener kit is ideal for high-horsepower street engines, competitive applications, or vintage BBC rebuilds, ensuring consistent preload and structural integrity under extreme conditions.

Featuring ARP's proprietary fastener design with 12-point heads and stainless steel outer bolts, this kit provides superior corrosion resistance while maintaining the precise geometry necessary for accurate torque-angle installation. The 12-point design allows for incremental torque steps and precise final stretch measurements, which are essential for achieving uniform clamping load across all head bolts. ARP's premium alloy construction ensures consistent tensile strength and minimal relaxation over thousands of heat cycles, preventing bolt creep that can compromise head gasket sealing.

This kit is particularly beneficial for engine builders and mechanics who demand reliability in high-output or turbocharged applications. The stainless steel outer bolts resist oxidation and provide a polished appearance, while the proven ARP metallurgy delivers the repeatability that separates this product from the competition. Whether you're building a street performance engine or preparing for a race, this head bolt kit is a trusted choice for optimal performance.