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-   -   Aftermarket/Replacement Cylinder Head Rule Change (https://classracer.com/classforum/showthread.php?t=68473)

Nmbr1GMfan 12-25-2017 08:50 PM

Re: Aftermarket/Replacement Cylinder Head Rule Change
 
Quote:

Originally Posted by ron mattson (Post 552400)
I have to laugh right below this post is a
ad from jegs for the NHRA "legal" performer
rpm heads!! Lol

That's because you were searching for them LOLOLOLOLOL!

Coleydog 12-26-2017 12:03 AM

Re: Aftermarket/Replacement Cylinder Head Rule Change
 
Wow, with all those different Chevy heads it does look like crate engine time. I thought we had it bad with a Chrysler, 2 maybe 3 different ones. Is Ford like that? I know they got a ton of different engines.

PJ305 01-08-2018 09:10 AM

Re: Aftermarket/Replacement Cylinder Head Rule Change
 
Quote:

Originally Posted by ron mattson (Post 552399)
No worries guys I'm quite sure there will be
Another aluminum head out soon with smaller
runners 165 ish and possibly another brand
of aluminum head, I would not get so worked up
until the dust settles 30-60 days.

Has anyone contacted NHRA and have them explain how the SBC heads they approved are going to maintain the same runner volumes as the stock head they replace!

Todd Hoven 01-08-2018 11:15 AM

Re: Aftermarket/Replacement Cylinder Head Rule Change
 
Quote:

Originally Posted by PJ305 (Post 553255)
Has anyone contacted NHRA and have them explain how the SBC heads they approved are going to maintain the same runner volumes as the stock head they replace!

It’s up to the racer/engine builder. Not NHRA how that is accomplished. No different that the way it is done now with OEM heads and replacement heads. The NHRA night allow the bigger head and volume the way it is. It’s happened for some of the heads approved now.

goinbroke2 01-08-2018 12:32 PM

Re: Aftermarket/Replacement Cylinder Head Rule Change
 
So, first;
Do you think Edelbrock did their due diligence and got this head accepted, good for them, or
Edelbrock somehow has an "in" and that's why so many of their heads are approved (conspiracy theory?) and this is all about padding the coffers of a company loyal to nhra?

Second;
I have numerous ford heads in my shop, but they are not the correct year/number/etc so basically they are garbage, even though they are unmolested stock heads. Would love to see the hundreds of ford heads replaced with one as well.
Alternatively, I'd like to see all the ford heads that are identical but different years all accepted as the same. Same valve size/chamber size/runners/everything but they have different numbers due to the casting year. Yes some have big/small plugs (no performance advantage) and different rocker arm bolt down methods, but seriously, I'd rather just say if its a stock ford head, then its good.
Obviously 4v and 2v Cleveland casting are different and would need different numbers, but all 2v heads and all 4v heads could have the same number.

Third;
Just questions, don't get your panties in a twist! Lol!

Of all manufacturers to get a replacement stock head..chev? REALLY??? Change ford or dodge and you will affect a certain number of racers, but sbc??? AMC, I could see that, or Pontiac...Buick maybe...but CHEV??? How about a caddilac head, I could see that....

Jim Hanig 04-05-2018 09:03 PM

Re: Aftermarket/Replacement Cylinder Head Rule Change
 
Quote:

Originally Posted by PJ305 (Post 553255)
Has anyone contacted NHRA and have them explain how the SBC heads they approved are going to maintain the same runner volumes as the stock head they replace!

When was the last time they checked yours?

Randy Parker 04-05-2018 10:03 PM

Re: Aftermarket/Replacement Cylinder Head Rule Change
 
Nhra making America great again!

X-TECH MAN 04-06-2018 08:56 AM

Re: Aftermarket/Replacement Cylinder Head Rule Change
 
Quote:

Originally Posted by randy parker (Post 559987)
nhra making america great again!

lol................

Dan Fahey 04-06-2018 10:47 AM

Re: Aftermarket/Replacement Cylinder Head Rule Change
 
Quote:

Originally Posted by X-TECH MAN (Post 560002)
lol................

Wasn’t there a class called "Modified Stock" ?

Seems like the Stockers today fit that Class?
and
Going quicker!

D

Chuck Norton 04-06-2018 11:57 AM

Re: Aftermarket/Replacement Cylinder Head Rule Change
 
Quote:

Originally Posted by Dan Fahey (Post 560009)
Want there a class called "Modified Stock" ?

Seems like the Stockers today fit that Class?
and
Going quicker!

D

That's just NHRA admitting that Terry was right when IHRA introduced the crate motor classes over twenty years ago. Our end of the sport is faced with a singular problem that has been addressed in multiple ways. Terry's solution was simpler, made allowances for the people who couldn't afford "enhanced" parts, and a ton cheaper!

c

nolongerracing 04-06-2018 12:21 PM

Re: Aftermarket/Replacement Cylinder Head Rule Change
 
Quote:

Originally Posted by Chuck Norton (Post 560013)
That's just NHRA admitting that Terry was right when IHRA introduced the crate motor classes over twenty years ago. Our end of the sport is faced with a singular problem that has been addressed in multiple ways. Terry's solution was simpler, made allowances for the people who couldn't afford "enhanced" parts, and a ton cheaper!

c

I think there were "enhanced" parts in crate motor class too!!

X-TECH MAN 04-06-2018 06:20 PM

Re: Aftermarket/Replacement Cylinder Head Rule Change
 
Quote:

Originally Posted by nolongerracing (Post 560014)
I think there were "enhanced" parts in crate motor class too!!

Not when I was working for IHRA but that was a long time ago.

Chuck Norton 04-06-2018 07:38 PM

Re: Aftermarket/Replacement Cylinder Head Rule Change
 
Quote:

Originally Posted by X-TECH MAN (Post 560024)
Not when I was working for IHRA but that was a long time ago.

No system, regardless of how carefully it is designed and how thoughtfully it is implemented, can long survive a period of either benign or pernicious neglect. There are sufficient numbers of individuals who are intent on gaining an advantage by any means available to render even the most comprehensive rule book irrelevant practically overnight. This is especially true of the Rules of Engagement in Stock Eliminator.

GallopinGhost 04-06-2018 07:53 PM

Re: Aftermarket/Replacement Cylinder Head Rule Change
 
well said, as is un-comfortable or satisfying it may be.

Ed Carpenter 04-06-2018 08:07 PM

Re: Aftermarket/Replacement Cylinder Head Rule Change
 
I know two SS racers who switched to aluminum heads over the winter and both slow d down........their not happy either 😳

MR DERBY CITY 04-06-2018 08:32 PM

Re: Aftermarket/Replacement Cylinder Head Rule Change
 
Quote:

Originally Posted by chuck norton (Post 560033)
no system, regardless of how carefully it is designed and how thoughtfully it is implemented, can long survive a period of either benign or pernicious neglect. There are sufficient numbers of individuals who are intent on gaining an advantage by any means available to render even the most comprehensive rule book irrelevant practically overnight. This is especially true of the rules of engagement in stock eliminator.

amen !!

Dwight Southerland 04-06-2018 09:01 PM

Re: Aftermarket/Replacement Cylinder Head Rule Change
 
Quote:

Originally Posted by Chuck Norton (Post 560033)
No system, regardless of how carefully it is designed and how thoughtfully it is implemented, can long survive a period of either benign or pernicious neglect. There are sufficient numbers of individuals who are intent on gaining an advantage by any means available to render even the most comprehensive rule book irrelevant practically overnight. This is especially true of the Rules of Engagement in Stock Eliminator.

Yes. And both Stock a Super Stock rules are under constant attack for advantage. Edelbrock pn 60947 heads that were accepted last year for the SBC and the current Jones Engineering heads for SS are angle plug heads. Even though NHRA rules specifically state that the spark plug angles cannot be changed and NO Chevrolet small block V8 EVER came off an assembly line with angle plug heads. Can you imagine a 327-275hp engine in Stock Eliminator with angle plug aluminum heads??? Write your division director, the national tech department, the NHRA national techincal vice-president, the NHRA CEO, your mother and any one else you can think of to object. Such actions and decisions will destroy the eliminators faster than you can imagine.

Todd Hoven 04-07-2018 04:40 AM

Re: Aftermarket/Replacement Cylinder Head Rule Change
 
One of the candidates for a replacement head for Pontiac round port was a head made by Kaufman Racing. Everything was a go but Bruce rejected it because of angled spark plugs. Guess that is not a problem anymore as long as you race a Chevrolet.



Quote:

Originally Posted by Dwight Southerland (Post 560043)
Yes. And both Stock a Super Stock rules are under constant attack for advantage. Edelbrock pn 60947 heads that were accepted last year for the SBC and the current Jones Engineering heads for SS are angle plug heads. Even though NHRA rules specifically state that the spark plug angles cannot be changed and NO Chevrolet small block V8 EVER came off an assembly line with angle plug heads. Can you imagine a 327-275hp engine in Stock Eliminator with angle plug aluminum heads??? Write your division director, the national tech department, the NHRA national techincal vice-president, the NHRA CEO, your mother and any one else you can think of to object. Such actions and decisions will destroy the eliminators faster than you can imagine.


Dan Fahey 04-07-2018 08:54 AM

Re: Aftermarket/Replacement Cylinder Head Rule Change
 
This is where I will miss the IHRA Pure Stock.
Basically the Old Stock Eliminator Rules.

Seems about that same time in Class Racing.
NASCAR Stock Cars had less and less original components!
Now not one part in modern day Stock Car ever fit on a Production Car.

Same with our car.
We need Roll Bars, special suspensions, more safety equipment, certification of helmets and seat belts, special fuel.
Cannot even use pump gas anymore.

Crate Motors were always a natural fit.
Replacement engines were always common.
Did not morphed the Stock Eliminator concept.
Sometimes you are stuck with a combination.
Old parts become problematic!
Plus opened up a vendor base.

We may not want another class but new ones are always being invented.
The RAGE of Racers complaining they do not want a new class.
New ones keep popping up.
Which means Stock Eliminator has to compete for Racers who choose to run those classes.

Current rules restrict inviting the new generation of Racer to play in our sand box.

You do not do not see many 20 - 30 year olds.
Do see 50’s, 60’s, 70’s and 80’s and passing away.

IHRA had the right idea with their Class Eliminator set up.
Had NHRA adopted the IHRA structure.
There would have been shift from traditional Stock.


D

Jon Sarrett 04-07-2018 11:15 AM

Re: Aftermarket/Replacement Cylinder Head Rule Change
 
Quote:

Originally Posted by Dwight Southerland (Post 560043)
Yes. And both Stock a Super Stock rules are under constant attack for advantage. Edelbrock pn 60947 heads that were accepted last year for the SBC and the current Jones Engineering heads for SS are angle plug heads. Even though NHRA rules specifically state that the spark plug angles cannot be changed and NO Chevrolet small block V8 EVER came off an assembly line with angle plug heads. Can you imagine a 327-275hp engine in Stock Eliminator with angle plug aluminum heads??? Write your division director, the national tech department, the NHRA national techincal vice-president, the NHRA CEO, your mother and any one else you can think of to object. Such actions and decisions will destroy the eliminators faster than you can imagine.

Actually, LT-1 heads are angle plug.

FED 387 04-07-2018 11:35 AM

Re: Aftermarket/Replacement Cylinder Head Rule Change
 
L-98 Corvette was an angle plug head too I believe---FED 387

Dwight Southerland 04-07-2018 02:21 PM

Re: Aftermarket/Replacement Cylinder Head Rule Change
 
Quote:

Originally Posted by Jon Sarrett (Post 560066)
Actually, LT-1 heads are angle plug.

But the replacement heads listed are for 62-70 year models.NO angle plug heads during those years.

Jim Hanig 04-07-2018 04:50 PM

Re: Aftermarket/Replacement Cylinder Head Rule Change
 
Quote:

Originally Posted by Dwight Southerland (Post 560076)
But the replacement heads listed are for 62-70 year models.NO angle plug heads during those years.

Dwight there never alum heads for 428,390 Ford's either,but they Got them now. Cant see how the heads for the chevys would make much diff.

6130 04-07-2018 06:09 PM

Re: Aftermarket/Replacement Cylinder Head Rule Change
 
I'm still perceiving Stock Eliminator through 1980's glasses, because that's what I was most comfortable with. Headers, converter, ring & pinion, and a 9" tire...on a car with a VIN number. Not saying it's better or worse, just saying I'm somewhat stuck in that perceptual paradigm.

But whether I'm comfortable with it or not, Stock has moved on. Just like stock moved on from the '60s, to the '70s, to the '80s, all the way through today.

I still find Stock Eliminator fascinating, but it is more and more becoming a class that is difficult to explain to lay people, which I think hampers it's value as a financially viable spectator commodity.

Ultimately, I think that Stock is going to die, and when it does, I will very much miss it. It is (and was) a beautiful class.

Dwight Southerland 04-07-2018 07:20 PM

Re: Aftermarket/Replacement Cylinder Head Rule Change
 
Quote:

Originally Posted by Jim Hanig (Post 560078)
Dwight there never alum heads for 428,390 Ford's either,but they Got them now. Cant see how the heads for the chevys would make much diff.

Then NHRA's rules for Super Stock heads "Grinding and polishing in combustion chamber permitted. Welding and/or applying epoxy in combustion chamber prohibited. Spark-plug hole must maintain the stock location, size, and angle as machined by the OEM; spark-plug adapters prohibited." can just be ignored. Have you seen the combustion chambers on the Jones heads or the Edelbrock heads? I guess everybody is satisfied to be a frog in a pot with the fire on high.

Rory McNeil 04-08-2018 03:07 AM

Re: Aftermarket/Replacement Cylinder Head Rule Change
 
Here we go again!
Quote:

Originally Posted by Dan Fahey (Post 560058)
This is where I will miss the IHRA Pure Stock.
Basically the Old Stock Eliminator Rules.



Crate Motors were always a natural fit.
Replacement engines were always common.
Did not morphed the Stock Eliminator concept.

"Key word is WERE! IHRA decided to drop the Stock classes. Maybe if IHRA HAD morphed into NHRA Stock classes and rules,perhaps there would have been enough contestents that IHRA would have considered Stock to be viable still."

Current rules restrict inviting the new generation of Racer to play in our sand box.


"How exactly does expecting "the new generation of racers" to follow the same rules and procedures as all the other Stock class racers have to, restrict these new generation racers from playing in NHRAs sandbox?"
You do not do not see many 20 - 30 year olds.
Do see 50’s, 60’s, 70’s and 80’s and passing away.

"From what I have seen, the vast majority of 20-30 year olds simply do not care about cars, or racing at all. When I was 15, I was counting down the days until I could turn 16 and get my learners permit, and hopefully, my own car. This just does not seem to be the case anymore, at least in more populated areas. cars are simply not a high priority for many younger people, modifying and racing even less so. I don`t think that radically changing the status quo, for the thousands of faithful racers that have participated in Stock or S/S for many years is the answer."

IHRA had the right idea with their Class Eliminator set up.
Had NHRA adopted the IHRA structure.
There would have been shift from traditional Stock.


"Had NHRA followed IHRAs "right idea" structure, maybe there would no longer be Stock classes in NHRA either. From the number of NHRA racers on this site, looking to hopefully find a spot in a National Event with a full quota, and the 1000`s of Stock Class racers that attend NHRA Nat`l & divisional races, the NHRA Stock & S/S classes still seem to be pretty viable."


D


ppmracing 04-11-2018 10:11 AM

Re: Aftermarket/Replacement Cylinder Head Rule Change
 
Quote:

Originally Posted by Todd Hoven (Post 560054)
One of the candidates for a replacement head for Pontiac round port was a head made by Kaufman Racing. Everything was a go but Bruce rejected it because of angled spark plugs. Guess that is not a problem anymore as long as you race a Chevrolet.

When we tryed to get the aftermarket heads leagal for the Mopar BB , we first got the Mopar performance 452-A heads leagal for SS onley. At that time their was no way that the Edlebrock could be legal for Stock/ SS, because off onley one thing, their was angel spark plugs. Bruce told us now way ! Then after a year or so Edelbrock came with a straight plug style, and it was ok.
But that was a Mopar, not a Chevy !.

Mark Yacavone 04-11-2018 11:28 PM

Re: Aftermarket/Replacement Cylinder Head Rule Change
 
How much are angle plugs worth on a SBC SS'er ? Not looking for conjecture.
Real world only, please.

Dwight Southerland 04-12-2018 06:44 AM

Re: Aftermarket/Replacement Cylinder Head Rule Change
 
Bill Jenkins always said 10-12 HP. Chevrolet engineers said it helps more with higher compression ratio and dome in the combustion chamber, but that it was about 10 hp on flat top pistons (350 cu in, 10.5 compression). I have only seen an un-scientific test once on a 377 dirt track engine when a pair of ported 461 heads were replaced with unported 292 heads and the difference was 22 hp.
If high compression benefits more, then consider that all blueprinted 62-70 327 and 350 flattop pistons engines run between 11.5 to 12.0 compression.

X-TECH MAN 04-12-2018 08:42 AM

Re: Aftermarket/Replacement Cylinder Head Rule Change
 
Quote:

Originally Posted by 6130 (Post 560084)

Ultimately, I think that Stock is going to die, and when it does, I will very much miss it. It is (and was) a beautiful class.

Stock Elim. DIED in 1985 !

Todd Hoven 04-12-2018 09:33 AM

Re: Aftermarket/Replacement Cylinder Head Rule Change
 
I think for stock the rules should be changed so any casting can be used as long as they have all the same volumes, valve sizes, and valve arrangements. We are there anyway why only allow some manufacturers and people to get replacement parts. Go to a SS cylinder head rule
for stock and be done with it. All the replacement head deal does is give select few racers an economic and performance advantage over the rest.
One more thing, all the guys crying that the new cars are not real stockers are wrong. They all have the parts they were designed with and run them.
How many original parts are in a 396/375? or a Plymouth 340 with aluminum heads and intake? Not many I’m sure. It’s getting stupid, nobody with a SBC can’t find parts?

novassdude 04-12-2018 06:37 PM

Re: Aftermarket/Replacement Cylinder Head Rule Change
 
Quote:

Originally Posted by Todd Hoven (Post 560437)
I think for stock the rules should be changed so any casting can be used as long as they have all the same volumes, valve sizes, and valve arrangements. We are there anyway why only allow some manufacturers and people to get replacement parts. Go to a SS cylinder head rule
for stock and be done with it. All the replacement head deal does is give select few racers an economic and performance advantage over the rest.
One more thing, all the guys crying that the new cars are not real stockers are wrong. They all have the parts they were designed with and run them.
How many original parts are in a 396/375? or a Plymouth 340 with aluminum heads and intake? Not many I’m sure. It’s getting stupid, nobody with a SBC can’t find parts?

You really think that all the new cars are running the parts that came in them? I would bet that all the fast cars are running aftermarket rods pistons cams and tweaked heads just like all the old cars.

Bruce Fulper 04-12-2018 07:31 PM

Re: Aftermarket/Replacement Cylinder Head Rule Change
 
Quote:

Originally Posted by M Brand 505B (Post 552233)
One of the listed heads is close in CC to the stock specs. This rule is good for guys in the cylinder head business. Now we need a head approved for the Pontiac.


Pontiac doesn't need another approved head. Pontiac guys just need to do their homework. And as of now I read, the Edelbrock Pontiac is approved for Stock. Hesus.......what a bunch of whining no-nothing racers. I fought (voted) against the Super Stock Pontiac E-head every time NHRA asked me. But after 15 years the whiners prevailed. And now Stock? You're shameful.

Todd Hoven 04-12-2018 09:04 PM

Re: Aftermarket/Replacement Cylinder Head Rule Change
 
Quote:

Originally Posted by novassdude (Post 560489)
You really think that all the new cars are running the parts that cam in them? I would bet that all the fast cars are running aftermarket rods pistons cams and tweaked heads just like all the old cars.

I guess you haven’t seen any of those engines apart? Well I have, and those engines come with good stuff already. They are much closer to the way they came from the factories then the older cars that are getting aluminum replacement for the hard to find iron heads.

Todd Hoven 04-12-2018 09:08 PM

Re: Aftermarket/Replacement Cylinder Head Rule Change
 
Coming from a guy that has never built anything for class racing on his own. Build something on your own, and race against cars that have these parts and let’s see how you do. We will never see that so your statement like yourself is irrelevant.....Next


QUOTE=Bruce Fulper;560493]Pontiac doesn't need another approved head. Pontiac guys just need to do their homework. And as of now I read, the Edelbrock Pontiac is approved for Stock. Hesus.......what a bunch of whining no-nothing racers. I fought (voted) against the Super Stock Pontiac E-head every time NHRA asked me. But after 15 years the whiners prevailed. And now Stock? You're shameful.[/QUOTE]

Bruce Fulper 04-12-2018 11:53 PM

Re: Aftermarket/Replacement Cylinder Head Rule Change
 
Quote:

Originally Posted by Todd Hoven (Post 560499)
Coming from a guy that has never built anything for class racing on his own. Build something on your own, and race against cars that have these parts and let’s see how you do. We will never see that so your statement like yourself is irrelevant.....Next


QUOTE=Bruce Fulper;560493]Pontiac doesn't need another approved head. Pontiac guys just need to do their homework. And as of now I read, the Edelbrock Pontiac is approved for Stock. Hesus.......what a bunch of whining no-nothing racers. I fought (voted) against the Super Stock Pontiac E-head every time NHRA asked me. But after 15 years the whiners prevailed. And now Stock? You're shameful.

[/QUOTE]

Jesus dude....you must really live in Hatesville to say some dumb axx thing like that. I thought you were just a regular guy. But now we all see different.


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