Approval of Super Stock Class Aftermarket Cylinder Heads

[Stan Weiss]

Originally Posted by SBillinson

The way I see it, for super stock only, if the follow criteria are met, what difference does it make to approve a raw casting?

Correct valve angle
Correct valve placement
Correct port heights
Correct chamber design
Correct CCs

What am I missing?

For those who may think the existing NHRA aluminum heads somehow better represent the factory heads they're replacing, send them to me and give me two days with a tig torch.

Can you explain what you mean by this?


Thanks,
Stan

[SBillinson]

Originally Posted by Stan Weiss

Can you explain what you mean by this?


Thanks,
Stan

No raised ports.

I would consider correct port height to be the highest point you could reach in an OEM casting without grinding through the roof. The height would be relative to the deck.