[Bill Diehl]

Originally Posted by SSDiv6

My APOLOGIES for misspelling your name, Venice.

If they are the only two approved cylinder heads for the GM brand, then NHRA has to publish it. Too many times I have been told by NHRA to go ahead and proceed to do a change even when I have been given a written approval just to be rescinded months later. Therefore, unless it is on the approved list, there are no guarantees.

As a matter of fact, I proposed the RHS/Pro Action cylinder heads for the Ford application as an alternate cylinder head. I submitted all the technical data, pictures and even offered to bring a head to a race. After awaiting for a response for a full year, I just gave up.

As regards to running SS/CS, I was going to run in the class. Nevertheless, since I already had knowledge of the upcoming rule and it will eventually be an exercise in futility, the car is being built to run in Comp Eliminator Super Modified with D3 cylinder heads.

As regards to the LS cast iron cylinder head, it will outflow the N351 and it is an OEM cylinder head according to NHRA.

That will be a nice piece