Yeah, to hail with the mags. In my view, old trucks are historical icons and should STAY old trucks. I put a 261 in my 40' chev half tonne, but can easily go back to original with a wrench.I kept the original 216. Just my view. Chopping a old truck is ,in my view, THE unrepentable SIN. "Choppers" will drop like a rock. har yuk Jim