I just acquired a 1936 GMC T14 and I am wanting to identify the motor that has been put in. I am quite certain this not the original motor or transmission but I can't seem to find out what exactly it is.
I found some casting numbers on the block and the head but they don't seem to match anything I have found on the internet.
What I know...
On the driverís side, near the top front, it has a metal tag with an Engine Number B41843
On the passenger side, close the bottom, near the front, is the number cast in the block 418513
On the passenger side, close the bottom, nearer the rear is J 23 7 (I think this is the date code for Oct 23 1937 but I haven't been able to confirm this.)
It does have GM cast into the block on the lower passenger side, near the middle.
The head has 408009 cast into it.
What I think I was told (but canít say for certain) is that this motor is an Oldsmobile, car engine from 1937.
I have not pulled any parts off or located any specific serial numbers but if someone wants to know and can tell me where to look, I will be happy to see what I can find.
Any information or leads to a website to be able to check would be welcome.
Google keeps popping up articles pointing to: http://clubs.hemmings
/clubsites/chevytalk/GMhistory/cast.html but unfortunately that site is not working.