| |
Click on image for the lowdown. 
====
| | | Forums66 Topics128,042 Posts1,055,518 Members48,424 | | 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: Jun 2009 Posts: 98 'Bolter | | 'Bolter Joined: Jun 2009 Posts: 98 | I`m going to look a GMC 1 ton pickup tomorrow. Supposedly barn fresh and kept. All I know from word of mouth about it is it has bug eye headlites so I`m assuming its 1941-43 ish.
How do I know if it has insert bearings or babbitted? I`m guessing that it would be a 228, 236, or 248 engine. Any advice here would sure help me out. Dont be bashfull. Thanks, John | | | | | Joined: Jul 2008 Posts: 413 Shop Shark | | Shop Shark Joined: Jul 2008 Posts: 413 | Hey John, welcome to the bolt.I do believe they are insert bearings. The chevy engines were babbited. The engine ID is stamped on a flat pad just behind the distributor. The first 3 didgits of that number is the engine size..
sound like you have a 41-46 truck.
I have a 45 GMC with a 248 engine.
Good luck with it! | | | | | Joined: Jun 2009 Posts: 98 'Bolter | | 'Bolter Joined: Jun 2009 Posts: 98 | Thanks Jeffl. I have had an aversion to babbitted engines since I worked on a 36 flathead Ford some 35 years ago. Maybe if it was a babbited GM product I wouldnt have this "problem".
I`ll try to post a photo and the ID #`s if all works out. Hopefully it wont be be a wild goose chase.
So did GM ever have babbitted rods or was that just limited to Chevy? If so when was the switch made?
| | | | | Joined: Jul 2008 Posts: 413 Shop Shark | | Shop Shark Joined: Jul 2008 Posts: 413 | Im not sure on the rods. But I do know the GMC's back then, even though they shared the same cabs, they were a lot different than a chevy. they had their own engine, which was a Pontiac design,& the frame on GMC was heavier than a chevy.
Go to the Links page of this site and check out Old GMC Trucks .com. there is a lot ofinfo on the GMC's there.
Last edited by JeffL; 08/22/2009 1:18 AM.
| | | | | Joined: Feb 2006 Posts: 1,867 Shop Shark | | Shop Shark Joined: Feb 2006 Posts: 1,867 | John, as mentioned, the GMC engine will have the engine size dictated by the first three numbers on the pad behind the distributor. If its a Chevy engine in a GMC, youll have to go by the block casting numbers down by the fuel pump. Chevy switched to the inserts after 1953. GMC had inserts from at least 1941, which is where my knowledge of them stops.
Good luck, Jeff | | | | | Joined: Jan 2008 Posts: 4,961 'Bolter | | 'Bolter Joined: Jan 2008 Posts: 4,961 | If its original, it will have a 228 with precision bearings. They built them from 1939 through 1953. I'm not sure what you mean by bug eyed. If its 1938 or older, it probably had a Pontiac engine. | | | | | Joined: Jun 2009 Posts: 98 'Bolter | | 'Bolter Joined: Jun 2009 Posts: 98 | Looked at both trucks today 1939-1940ish. 228 engines. Both had been bondoed up over rust. With lots of pinholes that looked like stars when you looked up from the inside of the wheelwells. One cab wasnt to bad the other had a cab mount rotted away. Tags said General Motors truck manufactured by Yellow truck and Motor co.
I guess I`m not that interested in either one. Would rather spend more and find one in better shape. Owners looking for $4500 each. Quite a bit high by my estimate | | | | | Joined: Jan 2008 Posts: 4,961 'Bolter | | 'Bolter Joined: Jan 2008 Posts: 4,961 | Sounds like one too many zeros on the price. | | |
|
|
| |
