The exhaust manifolds will all bolt-up to the heads, but have different outlets & shapes,& would require fabricating new exhaust pipes to fit the different manifolds & vehicle bodies, the 317 manifolds are for single exhaust w/crossover, the 368 are for rear exhaust,the '56-'57 Mk-II are different (all on their own),& the commercial (Ram-Horn) would also require custom fabrication

Ok thanks for the info.

Generally the Y block concept is the crank set way up in the block, that said, the MEL qualifys as well as super dutys. Unknown to most is MELs are a direct bolt up to FE FT engines.

Get a 477 cu in Ford truck engine, cubes are already there.
Richard