Collection: ARP Harmonic Balancer Bolts & Bolt Kits

Shop ARP harmonic balancer bolts and bolt kits for selected GM LS, Ford V8 and Holden V8 applications. The range includes ARP 234-2503 for listed GM LS applications, ARP 154-2501 for Ford 351 Cleveland and Holden 253/308, and ARP 150-2501 for its listed Ford V8 applications.

Match the part number to your exact engine and balancer combination. Check crankshaft thread diameter and pitch, under-head bolt length, washer requirements and clearance before ordering. These bolts are application-specific, not interchangeable across all engine families.

Refer to each product listing and ARP installation instructions for material specifications, strength ratings, tightening torque and lubricant requirements.

Browse our ARP Fasteners collection for additional engine hardware.