Stocker Cylinder Heads....

[Bill Diehl]

Bump, this is 2 years old now.....so how far down with the cutter can we go? on both ends of the job?

Are they going by looks, feelings, a measurement or who you are?

[Alan Roehrich]

Originally Posted by Bill Diehl

Bump, this is 2 years old now.....so how far down with the cutter can we go? on both ends of the job?

Are they going by looks, feelings, a measurement or who you are?

Ask your division tech people.

[Bill Diehl]

Originally Posted by Alan Roehrich

Ask your division tech people.

It is Indy that I am concerned with

[Adger Smith]

Bill, I have been told that as long as it swings around the guide C/L it will pass.
There seems to be no depth numbers any more. Let me qualify the above statement with "AS OF" July 2014. Rules can be a moving target you better call someone with a little more authority than this message board.

[jmantle]

Originally Posted by Adger Smith

Bill, I have been told that as long as it swings around the guide C/L it will pass.
There seems to be no depth numbers any more. Let me qualify the above statement with "AS OF" July 2014. Rules can be a moving target you better call someone with a little more authority than this message board.

This is my understanding of the rule. As there is nothing in the rulebook saying you can't cut the manifold face in stock, if the bottom cut takes you over the maximum cc's, it's not hard to fix. I had suggested NHRA add something in the rulebook about not cutting the manifold faces but was shot down on that one. It would be interesting to know how many of the "expensive" heads have had the faces cut.

Jim Mantle V/SA 6632

[Bill Diehl]

Originally Posted by jmantle

This is my understanding of the rule. As there is nothing in the rulebook saying you can't cut the manifold face in stock, if the bottom cut takes you over the maximum cc's, it's not hard to fix. I had suggested NHRA add something in the rulebook about not cutting the manifold faces but was shot down on that one. It would be interesting to know how many of the "expensive" heads have had the faces cut.

Jim Mantle V/SA 6632

can't cut past the valve cover bolt holes the way I read it

[Adger Smith]

Bill, if it has had any angle milling at all the face needs to be milled to get the angle corrected. Even flat milling the head the intake surface needs milling for the intake to fit in the valley. I would say the odds are pretty good that there are very few that haven't had the intake surface milled.

[james schaechter]

Originally Posted by Bill Diehl

It is Indy that I am concerned with

Good call. Come out of nowhere and be fast at Indy. That is cool,but it is a lock for getting invited to the dance. Seen it many times. Most of the time it works out. Most of the time....