Rules clarification?

304 Views 4 Replies 0 Participants Last post by redimpss, Oct 25, 2003

Discussion Starter · Oct 8, 2003

I was just wondering what constitutes the following...

"Valve size change and/or head modifications"

I understand the valve size change, but since it was explicitly stated as valve change, does that mean that a head modification is just porting/smoothin of paths, or does that also include modification of/to pushrods, rocker arms, valve springs, etc.?

Thanks in advance...

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Discussion Starter · #2 · Oct 8, 2003

My interpretation of it is that if the head is anything other than what came stock on the car (stock unported iron heads, stock size valves, stock springs, stock pushrods, stock rocker studs, stock rockers) it would be considered a head modification.

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Discussion Starter · #3 · Oct 8, 2003

So a "head swap/replacement" and a "head modification" are considered equal? Hmmm....

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Discussion Starter · #4 · Oct 22, 2003

If I was asked to make that call, I would say it applies to something that modifies the HEAD, e.g puts a grinder or mill to the head, which would include porting, polishing and larger valves but would not include rockers or springs. It would also include any head swap, e.g. any form of aluminum heads.

Garry Forman,
mailto:[email protected]

Originally posted by Sir No ConeSS:
I was just wondering what constitutes the following...

"Valve size change and/or head modifications"

I understand the valve size change, but since it was explicitly stated as valve change, does that mean that a head modification is just porting/smoothin of paths, or does that also include modification of/to pushrods, rocker arms, valve springs, etc.?

Thanks in advance...

Save

Discussion Starter · #5 · Oct 25, 2003

HMMMM, lets see where the hole can be on this one!!!

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