Stocker Cylinder Heads....

[Greg Hill]

In 2008. I was the d3 srac member when the rule was changed to permit any valve job. I was told by three different senior tech people that you could do anything in the bowl as long as it was done off the center of the valve guide with a cutter. Alan is exactly right that the rule was .250 down before the rule change. Any of you talk to engine builders or head guys and they will tell you the same thing. A lot of people who post on here don't like all the changes in stock over the years. That's not relevant to this discussion.

What's needed are fair and consistent rules that are enforceable no matter who is looking at the heads. With the technology that is available to anyone who's willing to spend the money, it's my feeling that to get to fair and consistent rules there have to be things that can be measured. When one person can say, " I don't like the way that looks" and give no other reason for disqualification that opens up the door for favoritism or vindictiveness. I know for a fact some engine builders and head guys have been told that if the heads pour right and there are no grinding marks they are ok. I think to get enforceable rules they should allow porting with no welding or epoxy and that the heads should hold the right number of cc's in the runners.

I realize some of you would not like to see that change but given where we are right now I see no other way to have rules that are fair and enforceable.