Thread: Pontiac Cylinder Heads
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Old 04-12-2019, 12:36 PM   #3
Bruce Fulper
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Default Re: Pontiac Cylinder Heads
Quote:
Originally Posted by NSSGTO View Post
Looking at building a legal SS engine for a 66 GTO with a 389. Edelbrock states the 60587 NHRA approved head is legal for a 389.
The only info I can find from NHRA states the 092/093 factory castings are legal.
I do not have a new rule book in front of me at this time...
Anyone know if these are legal?
Not legal. Intake valve is too big.


www.PontiacEngines.com
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