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Click on image for the lowdown. 
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| | | Forums66 Topics128,014 Posts1,055,333 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!
| | THANKS!
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: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | Brian, Here are locations of most engine (head & block) codes. Post what you find here and people will help you decode them. The engine serial number is the best indicator of what year and model the engine was installed in (of course, over the past 50+ years engines get replaced and/or moved between vehicles). | | |
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