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Click on image for the lowdown. 
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| | | Forums66 Topics128,130 Posts1,056,367 Members48,441 | | 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: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | Here are locations of casting codes and the engine number on late 235/261 engines. These locations might be the same on your engine, Post the casting codes AND date codes for your head and block. People here will be in a better position to help you. | | |
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