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Old 06-06-2026, 10:51 AM
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hakansan hakansan is offline
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Join Date: Sep 2002
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Quote:
Originally Posted by Kenth View Post
From 1967 Pontiac Chassis Parts Catalog:

Bolt A #538946, 3/8" - 24 x 1/2" - 13 x 5 5/8"

Bolt B #518031, 1/2" - 13 x 4 5/8"

HTH

The bolts must be the same length since the head of the bolt sits on the same height from the block.

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`70 GTO, 370 hp, 3:90, TH400.