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66-67 GTO Tempest & LeMans TECH
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Cylinder head bolt thread
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https://forums.maxperformanceinc.com/forums/showthread.php?t=768375
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A.J.
01-22-2015 05:31 PM
Cylinder head bolt thread
What threads are there on the cylinder head bolts on a -66 389?
johnta1
01-22-2015 05:42 PM
1/2" x 13 threads
:)
A.J.
01-26-2015 01:46 PM
Thanks,
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