Approval of Super Stock Class Aftermarket Cylinder Heads

[Stan Weiss]

Originally Posted by Greg Hill

I have no dog in this hunt but the precedent has been set for allowing lots of aftermarket parts that are a lot different than the parts they replace. One example I can think of is the Edlebrock Pontiac heads with the round separated exhaust ports for the D port motors in super stock. Super Stock can now work the chambers so as long as the valves are roughly in the same place, everything measures right and they are the right valve angle what’s wrong with allowing heads with better material.

NHRA has the Edlebrock heads legal for stock for the 67-70 small block Chevy with as cast ports of 185cc and the legal number is 165cc. Looking at this from a cynics viewpoint I think maybe Edlebrock is being treated differently than other folks. What’s fair for the goose is fair for the gander!

Since the rules let the head porter modify it almost however he wants does that really matter? It really comes down to does the port come in under the max cc's. If so then it is good.



Stan