2015 Rules

[SSDiv6]

Originally Posted by Ven302

SS/CS Heads,
I talked with Bruce this afternoon, he told me that presently only two heads are approved ( both from Dart for the chevy), one is a 180 cc, the scary one is the 230cc 308 cfm head as cast. I got the feeling that just any iron heads wont be the deal. But they needed to have something to help the Chevrolet guys as they were cracking heads in short order. Knowing what these engines can break, I would not wish that on anybody. While I am concerned we all know that port volume or cfm do not only make the HP, I have worked an awful lot of stuff to find .07 over the year, so I cant imagine we will be obsolete, YET. Bruce and the NHRA seem to be aware of how touchy this is. The good thing is that there should be more trying out the SS/CS water, I can attest to the warmth (DAMN near boiling!). My biggest fear is that the class dwindles to 5 or 6 cars then gets written off.

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have been told by NHRA to go ahead and proceed to do a change even when I have been given a written approval just to be rescinded months later.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.