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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
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| | | | Joined: Oct 2003 Posts: 5,152 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Oct 2003 Posts: 5,152 | I've read that GMC used Oldsmobile and other non-Chevy GM inline sixes before the GMC motor came out. I don't recall if they also used Buick or Pontiac, but I know at least one other manufacture was used in some years. I also don't know exactly when GMC started producing their own motors, but I believe it was during the 30's.
You can probably get a real good answer if you visit your neighbor at oldgmctrucks.com.
1955 1st GMC Suburban | 1954 GMC 250 trailer puller project | 1954 GMC 250 Hydra-Matic | 1954 Chevy 3100 . 1947 Chevy COE | and more...
It's true. I really don't do anything but browse the Internet looking for trouble... | | |
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