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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: Oct 2004 Posts: 11 Junior Member | | Junior Member Joined: Oct 2004 Posts: 11 | Can someone help a friend of mine with a '51 Chevy 6400 (2-ton utility truck) with the following engine ID # (not casting #) FO710LB. I've looked at all my links and can't come up with the info. Thanks. | | | | | Joined: Oct 2003 Posts: 5,152 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Oct 2003 Posts: 5,152 | That doesn't look like an engine number.
I'd expect three letters followed by a string of numbers. If it were a GMC motor it would start with three numbers. Could it be a Canadian number?
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... | | | | | Joined: Aug 2000 Posts: 346 Shop Shark | | Shop Shark Joined: Aug 2000 Posts: 346 | That looks like a later engine number.
Probably a 235 or 261 engine.
'38 Chevy 1-1/2 ton
'49 Chevy 1/2 ton
'54 Chevy 6400 2 ton
'55.2 GMC 3/4 ton
'56 GMC 1-ton
No Room Left in Shop
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