400 B block

Well, I don't think you were out of line. I do question why anyone would assemble an engine if they found some clearance issues or irregularities.

What was the response from 440 Source and what were the problems they had with the parts? You said they contacted them, JohnRR?

The Stealth heads seem to make pretty damn good power....but I don't like the needle bearing rocker arms....I could be wrong, but i'm sticking with the more expensive Crane Gold Race Rockers.

P.S. Take note with the Stealth heads....they come setup with stuff thats only good to .510" lift...you have to upgrade some things to use them at more than .510"....a little misleading when they are showing flow numbers at .600".....gotta read everything!