You will most likely faint when you find out the cost of a rebuild. Maybe look around for a running motor that will drop in. 228,248,270 and 302 are the drop ins from cheapest to most expensive. You need to size the engine based on what your intended uses for the truck are. Then you will have to compromise to what your budget allows. Transmissions are readily available. Buy the stuff from somebody you trust or know. You could also ask on here if anyone has some to sell. A member here will not screw you and ruin their reputation on the site. You may have to make a road trip to pick up the items.


1947.2 GMC 1/2T SWB panel
1947.2 GMC 1/2T long bed
1948 GMC 1/2T short bed