2015 Rules

[Bob Mulry]

Shifting gears from the Pro Stock Stockers..............

After 15 years of lobbying NHRA for head studs they finally did it......

No more Heli-Coils in 40 year old blocks.......

Thanks to NHRA...Better late than never........

Bob

[Ven302]

Originally Posted by SSDiv6

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.

Its VENICE,

The rule does not say ANY, it says aftermarket, and I specifically asked about rolled over and Australian pro action stuff when I talked with Bruce. That is not the intent. NHRA always has to have something aftermarket on the approved list, so far there are only two. My only concern is that as a class competitor we were not asked our opinion. Nonetheless it would not be wise to start a cylinder head program for one of these cars without making sure the castings are legit. There is no proof that either of those heads are going to ruin my combo, and if it makes more people think they can do it easier I am all for that. I will take Bruce on his word before i would build an engine on hearsay. DO YOU run CS? If so you should put your name on your posts. I am sure Bogner, Menard (RWR). Hudson, Antonette, Mans, Groves et-al ( sorry if I missed anyone) know what it takes to go fast in this class. The heads are just one piece of the puzzle. Its really easy to put one of these together, bring it on out!

[SSDiv6]

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.

My APOLOGIES for misspelling your name, Venice.

If they are the only two approved cylinder heads for the GM brand, then NHRA has to publish it. Too many times I have been told by NHRA to go ahead and proceed to do a change even when I have been given a written approval just to be rescinded months later. Therefore, unless it is on the approved list, there are no guarantees.

As a matter of fact, I proposed the RHS/Pro Action cylinder heads for the Ford application as an alternate cylinder head. I submitted all the technical data, pictures and even offered to bring a head to a race. After awaiting for a response for a full year, I just gave up.

As regards to running SS/CS, I was going to run in the class. Nevertheless, since I already had knowledge of the upcoming rule and it will eventually be an exercise in futility, the car is being built to run in Comp Eliminator Super Modified with D3 cylinder heads.

As regards to the LS cast iron cylinder head, it will outflow the N351 and it is an OEM cylinder head according to NHRA.

[Another Friendly Racer]

Mr. (or Mrs.) FS FAN,

Be careful what we wish for? You are right. I should continue to show up at the track and get my doors blown off week in and week out by a new car. Yep, good idea. Let the new cars win and guys with an old car, go be a duck a smile. Hey, 1 out of a 100 times an old car will win, look at this one race at indy!

Thank you NHRA! I really don't care if I can no longer qualify at Indy, at least I can race again.

[Bill Diehl]

Originally Posted by SSDiv6

My APOLOGIES for misspelling your name, Venice.

If they are the only two approved cylinder heads for the GM brand, then NHRA has to publish it. Too many times I have been told by NHRA to go ahead and proceed to do a change even when I have been given a written approval just to be rescinded months later. Therefore, unless it is on the approved list, there are no guarantees.

As a matter of fact, I proposed the RHS/Pro Action cylinder heads for the Ford application as an alternate cylinder head. I submitted all the technical data, pictures and even offered to bring a head to a race. After awaiting for a response for a full year, I just gave up.

As regards to running SS/CS, I was going to run in the class. Nevertheless, since I already had knowledge of the upcoming rule and it will eventually be an exercise in futility, the car is being built to run in Comp Eliminator Super Modified with D3 cylinder heads.

As regards to the LS cast iron cylinder head, it will outflow the N351 and it is an OEM cylinder head according to NHRA.

That will be a nice piece

[Dyno]

When Indy opens up with a limit of 150 entries in S/S and I enter, I figure that I might have a chance of getting in as an alternate. Then NHRA jumps it up to 160 - 170 -180 there is no way of me racing. Sure, you can withdraw at that point, but NHRA still keeps your entry fee and will credit it forward, but "No Refunds" at that point. If they will allow 180 entries, then they should list it from the beginning and you can take your chances. For the amount you invest to travel and enter, it should be an "All Run" field. Plus, when the fastest hemi car on the grounds qualifies 100th in the field, (100 721 SS/AH Rick Houser, Pasadena CA, '68 Barracuda 8.493 9.30 -0.807) time for an adjustment on the index. Dyno

[Ed Carpenter]

Originally Posted by 71mavlouisville

Personally think the rule change in CS sucks.

Best runs ever (as far as I know off the top of my head, correct if wrong)

9.26 - Mans - Chevy
9.27 - Perno - Ford
9.28 - Bogner - Mopar

Will there be a list of accepted heads?

Same thing happened in A/ND, one brand (chevy) with a 14 degree head can go to 300 CC and flow more than 400 cfm.

This made Ford and Mopar obsolete in the class, WTF, had great parity and now only Chevy!

If anyone knows a Ford or Mopar head that can compete with this, I am in the Market.

http://www.racingjunk.com/Heads/1851...-400-CFM-.html

Ashton,

Guess I got your blood pumping with that text this morning! Maybe I need to build a CS engine. ��

[Mike Mans]

Originally Posted by 71mavlouisville

Personally think the rule change in CS sucks.

Best runs ever (as far as I know off the top of my head, correct if wrong)

9.26 - Mans - Chevy
9.27 - Perno - Ford
9.28 - Bogner - Mopar

Will there be a list of accepted heads?

Same thing happened in A/ND, one brand (chevy) with a 14 degree head can go to 300 CC and flow more than 400 cfm.

This made Ford and Mopar obsolete in the class, WTF, had great parity and now only Chevy!

If anyone knows a Ford or Mopar head that can compete with this, I am in the Market.

http://www.racingjunk.com/Heads/1851...-400-CFM-.html

We were told a couple years ago that 1-2 Dart head castings would be made legal for the Chevrolet CS class, but they would remain a 23* head with standard port location. No raised runner 15-18-23* stuff like the Pro-Action or RHS castings, as the intention is just to replace the GM Bowtie heads. Something that would utilize the same manifolds, pistons, etc... We had even started an R&D effort around these heads, and found no power gains to be had - other than hopefully increased longevity.

From what we have been told, it is still only going to be an "Accepted" list of aftermarket castings. So they have definitely worded this update incorrectly if that is the case. Hopefully they will make a revision on this line item soon for everyone's clarification.

Small correction - we ran 9.22 @143 in Belle Rose back in 2009. That's everything we had! SS/CS is a very fun class with some great competition, and I surely hope it maintains it's health. In 2011 David Bogner, James Antonette Jr. and myself all finished in the Top 10 nationally while running CS - it's definitely a well represented class.

Mike Mans