389 to 400 Conversion - Pontiac GTO Forum
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post #1 of 3 (permalink) Old 05-29-2017, 07:28 AM Thread Starter
 
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Location: Gastonia, NC - Born & raised in Connecticut - 31 years
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389 to 400 Conversion

The question of fitting 400CI heads to the 389CI block comes up on occasion. I found this article from CARS magazine. It shows the reader how to upgrade a 1966 389CI to the "new" 1967 400CI. The article points out what is needed to do this and should help a few of you.

I Split the article up into 2 posts due to its size.

PART 1
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post #2 of 3 (permalink) Old 05-29-2017, 07:30 AM Thread Starter
 
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PART 2 - 389CI to 400CI
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post #3 of 3 (permalink) Old 07-22-2018, 04:18 PM
 
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Good read. Thanks for posting.

I assume that the same would apply for the use of edelbrock or kre aluminum heads on a 65 389 ???
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  Pontiac GTO Forum > The 1964-1974 Pontiac Tempest, Lemans & GTO > 1964-1974 Tempest, Lemans & GTO General Discussion

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