I have 2 460 trucks laying around. My uncle has been bugging me about giving him free reign on a build of my '74 so I fugure why not. 1987 Econoline E35. Conversion Van or 1989 Econoline E350 (motorhome) Would perfer to use this truck for towing. Which engine makes more sense? And any difficulties shoving a 460 in a 74 Ranchero?