As the crankshaft flexes and twists, the balancer absorbs incredible amounts of kinetic energy. To ensure that the balancer is locked in position ARP has developed these ultra strong 200,00 psi bolts that let you exert maximum clamping force.

Special features include 1/4" thick, wide area washer and an extra tall 12-point head that accepts a deep socket and elimates the worry of stripping the head.

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ARP Bolts

Buick All V6 & V8 1.300" UHL Harmonic Balancer Bolt Kit

Part #: 120-2501

Buick All V6 & V8, 13/16" Socket size, 3/4"-16" Diameter/Thread size, 1.300" Under Head Length, ARP 120-2501 Harmonic Balancer Bolt Kit

Oldsmobile V8 1.300" UHL Harmonic Balancer Bolt Kit

Part #: 180-2501

Oldsmobile V8, 13/16" Socket size, 3/4"-16" Diameter/Thread size, 1.300" Under Head Length, ARP 180-2501 Harmonic Balancer Bolt Kit

Pontiac 350-455 cid 1.580" UHL Harmonic Balancer Bolt Kit

Part #: 190-2501

Pontiac 350-455 cid, 5/8" Socket size, 5/8"-18" Diameter/Thread size, 1.580" Under Head Length, ARP 190-2501 Harmonic Balancer Bolt Kit