Collection: ARP Harmonic Balancer Bolt

ARP Harmonic Balancer Bolts - 200,000 PSI High-Strength

Premium high-strength harmonic balancer bolts engineered to securely fasten the harmonic balancer to the crankshaft. ARP bolts feature 200,000 PSI tensile strength, 12-point heads, and wide-area washers to withstand extreme clamping forces in performance and race engines. Australian stock, fast dispatch from Perth.

Key Features

• 200,000 PSI Tensile Strength: Prevents bolt stretch and failure under high RPM and forced induction stress
• 12-Point Head: Allows precise torque application with better socket engagement
• Wide Area Washer: Distributes clamping load evenly to prevent balancer hub damage
• Chromoly Steel Construction: Black oxide finish for corrosion resistance
• Precision Rolled Threads: Consistent torque values for reliable installation

Engine Compatibility

• LS Engines: LS1, LS2, LS3, LS6, LS7, LSX, L92, L99 — Holden Commodore and custom swaps
• Small Block Chevy: 262–400 cubic inch applications
• Big Block Chevy: 396, 402, 427, 454, 502
• Ford: Small block Windsor, Cleveland, and big block applications
• Holden V8: 253 and 308 engines

Related Components

Complete your engine build with complementary ARP and engine hardware:

• ARP Fasteners: Head studs, main studs, and rod bolts for performance engine builds
• Engine Accessories: Complete range of performance engine components
• Gaskets: Engine sealing solutions for rebuilds and performance builds