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Click on image for the lowdown. 
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| | | Forums66 Topics128,084 Posts1,056,085 Members48,434 | | 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: Jan 2001 Posts: 5,337 'Bolter | | 'Bolter Joined: Jan 2001 Posts: 5,337 | Both 1948 and 1949 engines had this casting. 1950 216 had just the outer circle.
See the USA in your vintage Chevrolet! My Blog | | | | | Joined: Jun 2009 Posts: 2,201 Shop Shark | | Shop Shark Joined: Jun 2009 Posts: 2,201 | I have no idea what it means BUT I can tell you this.... WASH that thing, it's filthy   ...joe Yeah, what is that gunk? It is all over my 50 Buick too. Hard to get off. | | | | | Joined: Dec 2009 Posts: 8 New Guy | | New Guy Joined: Dec 2009 Posts: 8 | I have no idea what it means BUT I can tell you this.... WASH that thing, it's filthy ...joe Yeah, what is that gunk? It is all over my 50 Buick too. Hard to get off. I like to call it seasoning or maybe a poor man's undercoat.  | | |
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