SS/CS accepted heads
 

If I'm reading the rulebook right any head run in SS/CS must be NHRA accepted. The list of approved heads on nhraracer.com doesn't include any Ford heads for SS/CS. What am I missing?

"All heads must be NHRA-accepted, two valves per cylinder, except in classes DS, ES, FS, and GS, four valves per cylinder permitted."

Re: SS/CS accepted heads
 

As a Ford competitor, you can run any Ford manufactured factory cast iron heads. They must be accepted if they are an aftermarket casting (Dart, Brodix, etc...).

Re: SS/CS accepted heads
 

Thanks Mike, I always thought that was the case, but the wording above (2017 rulebook) threw me off.

Re: SS/CS accepted heads
 

Ford makes a head that fits the SS/CS spec of "Inline iron" called the N351. It is primarily for short track circle track racing. I did a lot of digging on this head and found it on the 1/8 mile record holding Mustang of Venice Perno.


It has a Ford part number, M-6049 N351, so it's not technically "aftermarket". Got mine from Speedway Motors. Require offset rockers and special headers.



links:
http://dragracecanada.com/ontario-ford-aficionado/


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Re: SS/CS accepted heads
 

Here's some pics of N heads on a BOSS302 block in my 68 coupe. It's a work in progress running in Pro at the moment. I just rebuilt the front suspension and will get it out for competition this weekend.



https://farm1.staticflickr.com/921/2...2cb41363_b.jpgMustang by Designer Dale, on Flickr


https://farm1.staticflickr.com/853/2...53d1fdf1_b.jpgEngine by Designer Dale, on Flickr

Re: SS/CS accepted heads
 

No doubt that's the Ford head to run. Good luck with yours!

Re: SS/CS accepted heads
 

Ford Performance has discontinued the N351 head and Speedway seems to be the only source of new ones. They must have purchased a bunch of them.

Roland