I drove the truck home today and spent the afternoon getting number off various places in order to determine exactly what I have. I know what the basic truck is, but the engine is another story.
The firewall plate say that the truck is a model EC 101 which translates to E= 1946; C= conventional cab; 10= 1/2 ton; and 1 = 116" wheel base. The serial number is 7425 and the plates says that the certified net horsepower is 76 at 3000 rpm and the max gross weight is 4600 lbs.
The engine has a rebuilders tag from Fresno, CA. On the distributor side of the engine there is a casting number B 52 848 8550. I can't find any reference to this number series on Stovebolt or on the GMC site. The original engine was a 228, but I don't know if the rebuild was a direct replacement or not.
The truck has a four speed transmission. Again, I don't know if this is a replacement or the original. I read somewhere that a 4 speed was an option on the 1/2 ton GMC.
There is a metal tag on the firewall on the drivers side which I guess is like a VIN number. It is: I 574 - I 58289.
The radiator has a tag that says: "Harrison, Lockport, NY 46M 3115041".
There is a casting number on the intake manifold that reads: 3886580 GM.
If any one can help me de-code all this I appreciate it. Most important is to determine what the engine is. I'll post some pictures tomorrow.
Last edited by Peggy M; 08/25/20231:09 AM. Reason: added more info to the title
