ARP SB/BB Chevy 3/8-16 12pt lower pulley bolt kit

This ARP lower pulley bolt kit uses 3/8-16 threads, a common size for many Small Block and Big Block Chevy engines. The 12-point head design is a practical choice, allowing for easier access and tightening in tight engine bays compared to a standard 6-point bolt, especially when you might not have a perfect angle on the fastener.

ARP is well-known for making strong fasteners, and these bolts are no exception. They are designed to hold up to the stresses of keeping your lower pulley securely in place. This kit is a straightforward replacement for your stock bolt, ensuring a solid connection for your crankshaft pulley.