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Harmonic Balancer Bolt w/ Thick Washer, Chevy Big Block 396-454, 12-Point, 5/8" Wrenching, 180,000 PSI, 1/2"-20 x 1.550" Under Head Length;
Earl's harmonic balancer bolts are made from high quality chrome moly steel with 180,000 PSI rating. The extra-tall 12-point bolt head won't strip or allow the socket to slip-off when turning over the engine. Includes extra thick large diameter washer. Bolt and washer are black oxide coated.;
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