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Old 10-15-2010, 05:49 AM
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time for the rebuild

hey everyone i have a 1977 pontiac 400cu #500577 block im looking to rebuild. the crank, lifters, and cam look to be in good shape. the 6x#8 head are pretty well done. the intake is still "decent". oil pan is good and valley cover is good. the pistons are in good shape but are badger replacements. im looking to do a nice rebuild to end up between 400 and 450hp. replaceing everything isnt a big deal. i would just sell off all the good parts if replaced. i guess what im looking for is a parts build list. anyone with experience with these blocks with any build lists or help would be appreciated. im planning on having 3.73 gears inthe back and a 700r4 tranny.
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Old 10-20-2010, 03:11 PM
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Is it not running well now? Why the rebuild? Leaking/burning oil? Low compression? Low oil pressure? Knocking? Just curious here, if it runs fine now I might just start with a good torquer cam to take advantage of that beefy poncho 400 low rpm potential. Buddy of mine had a 400 pontiac and stuck an rv cam in it, he said it was insanely fast stoplight to stop light, and actually still got pretty good mpg.
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Old 10-23-2010, 10:09 PM
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well the bearings that connect the pistons to the crank are pretty worn, and the heads need a complete rebuild. so i figured i would do the whole thing while i was in there
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Old 10-23-2010, 10:35 PM
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Do a search here for "pontiac build", and maybe PM WD Creech here, I knew him when I lived in Alaska...he is THE Pontiac man.

Here's one link: Pontiac 400 build.

Semper Fi
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Old 10-23-2010, 11:20 PM
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Quote:
Originally Posted by 68NovaSS
Do a search here for "pontiac build", and maybe PM WD Creech here, I knew him when I lived in Alaska...he is THE Pontiac man.

Here's one link: Pontiac 400 build.

Semper Fi

AYE! Glad to know that post is going to use! Believe me man, there is A LOT of VERY good info there! Sadly you dont have the "best" block, but you can still make some good power with it I know that is a long post but if you read through it all you will get a good idea of where to start heading


GOOD LUCK!
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Old 10-26-2010, 05:16 PM
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im rebuilding a 74 pontiac 400 right now do u you guys think the heads on that are any good?
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Old 10-26-2010, 05:21 PM
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To answer any questions about cylinder heads, here is a link to all factory pontiac cylinder heads.

http://www.wallaceracing.com/head1.htm
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Old 10-26-2010, 05:24 PM
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thanks appreciate it
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