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Click on image for the lowdown. 
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| | | Forums66 Topics128,020 Posts1,055,345 Members48,419 | | Most Online14,466
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: Aug 2005 Posts: 58 Wrench Fetcher | | Wrench Fetcher Joined: Aug 2005 Posts: 58 | I will be going to my favorite Junkyard in a few days and need some GMC help. I know chevy's quite well but not GMC's. At this yard they have 4 big old GMC's with engines in them. Is there any easy way to determine if any are a 270 or 302 ?
55 Cabover
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