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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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| | | Forums66 Topics128,006 Posts1,055,267 Members48,418 | | 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!
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#16350 06/05/2004 3:10 AM | Joined: Dec 2003 Posts: 510 Shop Shark | | Shop Shark Joined: Dec 2003 Posts: 510 | Aha! Something I know something about. "Twin-4" block casting and stamping numbers. The 0010 block is one of the more common 350 blocks. The way to tell what is originally came in (it's been swapped into your truck) is to check the stamping code suffix on the pad at the front of the passenger side head. I wrote up some info on how to do that on this page. Good luck with it. | | |
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