Straight to the question. Will this tank fit?
Thats a Tanks Inc. 1941-1948 Dodge and Plymouth fuel tank.
How we got here.
Elvis, the 1947 DeSoto with the LS/4L60E swap has damaged fuel tank that used to look kind of like this one:
That's an eBay tank, FOR 1946 1947 1948 DESOTO BRAND NEW GAS/FUEL TANK POWDER COATED BLACK
Ours was damaged, first around the fuel sender opening, which was modified (poorly) for a FiTech