Harmonic Balancer Bolt 12pt SBC

The Harmonic Balancer Bolt 12pt SBC from PRW Industries, Inc. is a precision-engineered fastener designed specifically for small-block Chevrolet applications where harmonic balancer retention is critical to engine reliability. This bolt is essential for mechanics and DIY builders who are replacing a harmonic balancer, performing a timing chain service, or completing an engine overhaul on small-block Chevrolet platforms.

Engineered to OEM-equivalent or superior standards, this bolt utilizes high-quality steel that can withstand the rigorous demands of SBC engines across a wide RPM range. The 12-point head design ensures reliable clamping force and proper torque distribution, reducing the risk of bolt slip during installation and improving load distribution around the fastener.

Whether you're rebuilding a classic 350, upgrading a 383 stroker, or servicing a performance 400, this bolt's precise engineering ensures it meets the exacting specifications required for harmonic balancer retention. Its compact design optimizes fitment in SBC configurations, making it a reliable choice for both high-performance and stock engine builds.