This truck has the straight 6, I'm assuming it's a 270. I shortened the frame about 6 feet and moved the axle forward to put a bed on it and use it as a project truck around the house.
Could be a GMC 302 straight six, I've got one in my 450
'52 Cadillac Coupe de Ville (to be restored) '56 GMC 450 (work in progress) '79 GMC C15 (fully restored)
