SBC Main Bolt Kit - Fits 2-Bolt - S/J

The SBC Main Bolt Kit - Fits 2-Bolt - S/J by ARP is an essential fastening system for serious small-block Chevrolet engine builders. This kit is crucial for those assembling or refreshing classic powerplants, ensuring that the crankshaft is securely anchored to the block. Whether you're working on a stock 283, a blueprint 327, or a custom stroker engine, this kit is designed to meet your needs.

Manufactured from premium alloy steel, ARP's main bolts undergo rigorous tensile and fatigue testing to provide consistent clamping force across all fastening points. This engineering-grade replacement kit is designed to eliminate the failure modes associated with factory original bolts, which can flex and fatigue under sustained load. Each kit includes precisely calculated torque specifications and installation instructions to ensure optimal preload and concentricity during installation.

Engine builders and automotive enthusiasts restoring or modifying two-bolt-main small-block Chevrolet engines will benefit greatly from this kit. The material composition and surface finish are designed to resist corrosion and galling, making it ideal for engines that may undergo repeated assembly and disassembly. This kit is compatible with various two-bolt main applications, ensuring a reliable performance for your engine build.