Chris I have access to another head that has been oringed and is completely stock that I will wiegh it against. I will post the wieghts when I get this one completed. I am trying to find a local shop to flow test both of them for comparison. Not shown are the new pushrods I bought from Source Automotive they are 40 percent lighter than stock. Too bad it isn't possible to machine 40 percent of the weight off of the head.
Durability problems? Don't understand why that would be an issue. I will static test the plenum with 125# of pressure for a couple days after it is welded back on.
Jim, lol yeah maybe so, on the other hand it maybe a myth buster. I plan on using the same ole turbos so I have somewhat of a ref. I did utilized a few local top builders for input/help which had me debating making a set of larger valves. If nothing else I have ensured #6 now has the same access to air as the other cylinders.
kxhonda, you miss understand what I wrote above. A couple chrome moly thin walled tubes where pressed in. The head does not have them in its stock form.