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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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#26923 03/25/2004 4:38 PM | Joined: Jun 2003 Posts: 56 Member | | Member Joined: Jun 2003 Posts: 56 | This truck came with a 270 engine. In the '50s 270s were hopped up and supercharged and were blowing the doors off V8 ***** on the dry lake beds.
It is a 450, the last 4 in 454 means a 179" Wheelbase.
I have a '53 633-50 where the 50 means a 503 engine and the last 3 is the wheelbase and 630 is the model. GMC kept changing their model designations so much that you need a program to keep up.
Earlier models such as AF353 were cabovers. the F meaning cabover?
On yours the F means '47-'50 years, go figure?
Have fun.
'31 Chevy 1 1/2 ton,
'42 GMC 2 1/2 ton 6x4,
'52 GMC 2 1/2 ton 6x6,
'53 GMC 5 ton
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