|
07-23-2018, 09:26 AM | #1 |
Member
Join Date: Nov 2001
Location: Arlington, TN
Posts: 122
Likes: 712
Liked 62 Times in 21 Posts
|
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." |
07-23-2018, 10:52 AM | #2 |
Member
Join Date: Jan 2006
Posts: 177
Likes: 21
Liked 300 Times in 48 Posts
|
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...).
|
07-23-2018, 10:58 AM | #3 |
Member
Join Date: Nov 2001
Location: Arlington, TN
Posts: 122
Likes: 712
Liked 62 Times in 21 Posts
|
Re: SS/CS accepted heads
Thanks Mike, I always thought that was the case, but the wording above (2017 rulebook) threw me off.
|
07-25-2018, 12:11 PM | #4 |
VIP Member
Join Date: Feb 2014
Location: Lakewood Washington
Posts: 1,407
Likes: 29
Liked 237 Times in 127 Posts
|
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/ .
__________________
Dale Shearon 68 Mustang 6394 |
07-25-2018, 12:58 PM | #5 |
VIP Member
Join Date: Feb 2014
Location: Lakewood Washington
Posts: 1,407
Likes: 29
Liked 237 Times in 127 Posts
|
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.
Mustang by Designer Dale, on Flickr Engine by Designer Dale, on Flickr
__________________
Dale Shearon 68 Mustang 6394 |
07-25-2018, 01:51 PM | #6 |
Member
Join Date: Nov 2001
Location: Arlington, TN
Posts: 122
Likes: 712
Liked 62 Times in 21 Posts
|
Re: SS/CS accepted heads
|
07-25-2018, 03:56 PM | #7 |
Member
Join Date: Feb 2010
Posts: 270
Likes: 1
Liked 7 Times in 5 Posts
|
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 |
|
|