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SSDiv6 · 01-05-2014, 01:14 AM

I would love to see such class be developed; nevertheless, even if there if a spec cylinder head, I believe NHRA would not be interested monitoring them.

The reason I believe so, I have been told by a few people that NHRA is seriously considering allowing any cast iron cylinder head in SS/CS class.

If this rule change takes effect, Chevy products will rule the class with the current aftermarket cast iron offerings such as the RHS Pro Action 14 degree cylinder heads, offering small chambers, big valves and the capability of the intake ports being ported to 300cc's of volume.

The current utilized Ford N351 and Mopar W-2 heads cannot compete against the Chevy engine offerings and there are no equivalent aftermarket cast iron heads either for the Ford and Mopar applications.

01-05-2014, 01:14 AM	#1
SSDiv6 VIP Member Join Date: Feb 2003 Location: Glendale, Arizona Posts: 3,044 Likes: 712 Liked 1,583 Times in 582 Posts	Re: Econo Modified I would love to see such class be developed; nevertheless, even if there if a spec cylinder head, I believe NHRA would not be interested monitoring them. The reason I believe so, I have been told by a few people that NHRA is seriously considering allowing any cast iron cylinder head in SS/CS class. If this rule change takes effect, Chevy products will rule the class with the current aftermarket cast iron offerings such as the RHS Pro Action 14 degree cylinder heads, offering small chambers, big valves and the capability of the intake ports being ported to 300cc's of volume. The current utilized Ford N351 and Mopar W-2 heads cannot compete against the Chevy engine offerings and there are no equivalent aftermarket cast iron heads either for the Ford and Mopar applications.