Pioneer Big Block Chevy Harmonic Balancer Bolt Kit
Part Number 859013

Fits :
Big Block Chevrolet 366 396 402 427 454 Engines
May Not Fit With Aluminum Pulleys , Check Dimensions !

1/2" - 20 Threads
1.500" Under Head Length
1/4" Thick Washer
Lock Washer
3/4" Hex Head
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