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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Jun 2007 Posts: 90 Wrench Fetcher | | Wrench Fetcher Joined: Jun 2007 Posts: 90 | Thanks guys,
....than am I to understand that the heads off of a '58 and '59 370 Pontiac (without tripower) are directly interchangeable if not exactly the same? A little research on google about the GMC 336 gathers that the 336 was in fact an underbored 370 Pontiac. Also, after looking at some pictures I see that the 370 does in fact have the water jackets coming out of the front of the heads like my 336, while the "upgraded" 389 from '59 and up looks completely different.
I'm really crossing my fingers on this one... 'just got to find someone willing to give up a pair! | | |
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