Heads for 440

Also know that anytime that you change something like this, that after market parts, don't always fit correctly. It can be from re grinding the valves and seats, valve springs, head deck possibly off, pushrods/rocker arms and intake will not fit properly. Not trying to scare you off, but it has happened to to me 2 out of 3 engines. The one that didn't bite me was a stock 318. Just saying, keep an open mind.
Good luck with your choices!