I have a 49 GMC 1 1/2 ton,and have come across a 48 Chevy 1 1/2 ton.I know they have different engines,but would the engine out of the 48 Chevy bolt into my 49 GMC? Or not.All I am missing is the engine,and had thought about installing a SBC,but if the 6 will bolt in,that would work too.