Pioneer Small Block Chevy Harmonic Balancer Bolt Kit

Part Number 859012

Fits :

Small Block Chevrolet 283 305 327 350 383 400 Engines

And Some Chevy V-6 Engnes

May Not Fit With Aluminum Pulleys , Check Dimensions !

Specs :

7/16" - 20 Threads

2.250" Under Head Length

1/4" Thick Washer

Split Type Lock Washer

5/8" Hex head

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