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Labor Day Putting down your wrenches or time for
MORE wrenching? 
Plenty of places to share. | | Click on image for the lowdown. 
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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!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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on the Internet for over 30 years! and not clogged down
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| | | | Joined: Sep 2011 Posts: 255 Shop Shark | | Shop Shark Joined: Sep 2011 Posts: 255 | well - I finally got down to the casting codes on my 1950 3800 only to find out that my 235 is really a 216 (drat). So with casting 3835849 I have a 216 from 42-53. The block numbers are CON4 F290 so it looks like it was cast in February of 1950.
Last question - what does the CON4 identify? I haven't been able to find any data on what those 4 chars stand for.
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