but lets be real, any head he ends up with are better than what it comes with, and the other "conversion parts" can be had for the cheap, especially on moparts forsale section !!! also check out 440source.com if you haven't already, I picked up a 1/2 price passenger side water pump because the holes going to the block were cast too small, about an hour and 3 beers later I have the right size holes, super smooth and good to go !!! also check craigslist, I picked up an older edelbrock TM6 intake manifold, dirty as hell with a seized carb up top for $50, cleaned it up chased some threads, good to go, this is all for my 400 build, keep in mind A BIG THING 440's are wider than the 383/400, and the 383/400 with 1 7/8 headers is already a tight squeeze
I gasket matched the openings of the water pump housing and the block to make sure everything flowed well
-Mike
-Mike