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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!
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| | | | Joined: Mar 2014 Posts: 4,482 Moderator, Electrical Bay | | Moderator, Electrical Bay Joined: Mar 2014 Posts: 4,482 | You're right. That is the early one. The later one was based on the Pontiac 389. I can't remember if it had dished pistons, but I don't think so. I also think the bore and stroke on the 2 may have been different. But I could be wrong on that. Haven't had one of those apart since around 1972. All the later ones had a problem with oil leaks where the oil filter mount attached to the block. I remember that very well. Wasn't easy to fix, either.
~ Jon
1952 1/2 ton with 1959 235 | T5 with 3.07 rear end
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