I Might Have Found Something Pretty Cool.....

RustyRatRod said

Look at it. There's no way in hell it's been milled. Milling would leave the chambers straight, but closed. Look CLOSELY at each trio of chambers. The first three are angled one way and the second three are angled the other. That would be impossible with milling. The head had to be cast that way.

Click to expand...

OK, guess l misunderstood, You meant it wasn't mowed down until that shape developed. "447" is the std casting# for peanut plug heads, even earlier ones, unless someone at the foundry was playing with chamber shapes...one would think a new casting#'d be used? My impression is it had been spray welded(very pro) & then surfaced enough to clean up the deck. Interested to see more of that one.