Stock Eliminator Cylinder Heads

[SSDiv6]

Originally Posted by Jim Hanig

my experience has been that if you don't do what the fast guys are doing your not going to be nearly as fast. The rules are pretty gray as to what you can do to the heads and intake. No grind marks and rite cc in the runners your good to go.Unless you run into Westly or Wayne then you mite have a problem, of course the cost of the heads ,manifold is now in the 5500 dollar range. Then there are some combo that are still soft,You just need to pick the rite one and get your check book out. Or be prepared for a uphill battle, ask anyone who has been doing it for many years.

Jim's statement is right on the money!
Classes such early Chevy small and big block, Mopar small and big block and a few others, in order to be competitive, you have to pay for the technology.

These engine packages have been in competition for decades and almost every single ounce of power has been extracted throughout the years. What makes the difference is the shop that either builds the cylinder heads and intake package and/or the engine and the camshaft design.

[Dissident]

Gentle Folks of the Class Racer Forum,
When I originally posted the outline of assumptions of preparations, it was specifically intended to address Stock Eliminator heads only. The SS stuff is another stack of candle wax entirely.

This was intended as a separate issue of discussion from whatever the details are in any sort of lawsuit stuff as I know nothing whatsoever about that deal. Most of those kinds of things are settled on courthouse steps anyway.

My comments were and are that I do not do work on cylinder heads, only having seen and flow tested some. I am an old guy and have seen the allowable "modifications" become rampant and are typically passed or failed on "visual" approval or disapproval. Regardless of what the rule book states. I abhor the politics and would prefer to stick to the technical side of the equation. Unfortunately that involves people and that is the most difficult item to balance in the equation.

In the meantime of lots of us can perhaps have a sensible discussion on the Stock Eliminator issue as presented. Thank you for your participation.

$5500???? Wow that came as an eye opener

Regards,
HB2
Dissident

[R. Thorne]

#5 and #8 are done numerous times and yield the most significant gains. They are also labor intensive and contribute a great deal to the cost. In my case, it was my labor. The flow bench that I built and my curiosity about air flow was an experience I wish I had done long ago.

[kansas stocker]

Cheatin' is cheatin'. Don't matter if everyone is doing it, it is still cheatin'. I really don't know how you hold your head up after you beat someone in a "heads up" or for "class" when you are illegal. If it makes you feel proud then go circle track racing where it is a badge of honor.
Just $.02 from a cranky old man.

[Nmbr1GMfan]

Originally Posted by kansas stocker

Cheatin' is cheatin'. Don't matter if everyone is doing it, it is still cheatin'. I really don't know how you hold your head up after you beat someone in a "heads up" or for "class" when you are illegal. If it makes you feel proud then go circle track racing where it is a badge of honor.
Just $.02 from a cranky old man.

If they're going to allow the heads to be taken to a certain level, I think the rulebook should reflect that, if not, the rules should be enforced.

[Larry Hill]

That's why I have 70 to 80 mopar 906 heads with different casting dates. Some are just better than others. Also have several sets of 346's and 452's.
I have spilled enough alcohol to float a boat pouring runners.
And then try to figure out what works best. Its a scavenger hunt with a rubik's cube all in one. It's fun, but sometimes I wonder when the fun will start.

Chevy truck heads we got'em !

[Ed Wright]

For ten years I ran a dirt track Sprint car. Cheaters, when caught, were looked down on as well. When they started to P&G the top five cars every week, we lost some out of town cars. :-)

[Ed Wright]

After I built my flow bench (could not just buy a SuperFlow) back then) I was shocked at the variation of air flow between different castings, same casting numbers.

[Dwight Southerland]

Originally Posted by Ed Wright

After I built my flow bench (could not just buy a SuperFlow) back then) I was shocked at the variation of air flow between different castings, same casting numbers.

Yes.

[SSDiv6]

Originally Posted by Ed Wright

After I built my flow bench (could not just buy a SuperFlow) back then) I was shocked at the variation of air flow between different castings, same casting numbers.

Yep. It is called "Core Shift". Caused by a deviation during the casting process due setting on the mold, mold alignment issues, mold temperatures and pressure differentials. One of the many reasons why the fast guys spend lots of money testing and going through many castings.