Josh; I would not have made that trade either.
My 351 Cleveland is going in a little 65 Ford Ranchero that weighs 2,000pds.
and I am hard pressed for room under the hood.
Your gonna need them big cubic inches to get all that steel rolling.
If that was my Torino I would get the 460 and put that in there.
I seen a artical some time ago where the took a 460 and turned the crank down
to accept 455 Olds rods bought some differant pistons and it came out to like a 503.
I believe they might have had to shave the sides of the rods.
But it was supposed to be a great running motor.
Nothing like the Big inches. Kurt