What modern straight 6 engine and manual tranny combo is the easiest drop in for my 51 1/2 ton. I really don't want to go with a V8 and bump the HP to much as it is going to be a toy car for my wife and she doesn't need or want big HP numbers. I figure a nice 6 will be within the limits of the rest of the vehicle. she just wants a funky cool truck.
Thanks
Greg
