Quote:
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.
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Vince, I was told a complete different story and that ANY aftermarket cast iron head will be allowed. Was also told that the GM LS cast iron 1999-2000, 6.0L,OEM truck 873 casting cylinder head was approved. This cast iron head, untouched, already has 210cc intake runner volume with a 2.0" intake valve. Add bigger valves and some extensive porting, they will flow 360+ CFM's.
If any of the Ford racers are interested, I know were a pair of brand new untouched RHS Ford, 20 degree cast iron cylinder heads with 225cc intake volume heads and 57cc chambers, are located.