Roller rockers

Terry Cain · 01-17-2011, 11:28 AM

I saw on here once before IHRA allows roller rockers in Stock. Are you allowed to run FULL roller rockers or just roller tips? Is this just for crate motors or all?

X-TECH MAN · 01-17-2011, 11:56 AM

Quote:

Originally Posted by Terry Cain

I saw on here once before IHRA allows roller rockers in Stock. Are you allowed to run FULL roller rockers or just roller tips? Is this just for crate motors or all?

You can run full roller rockers of the correct rocker ratio for your combo. No "Over the top" style such as Jessel. or shaft rockers on a chev or individual stud rockers on something like a 340/360 MoPar. You have to maintain the OEM configuration and mounting. This came about to increase reliabiliy in some engines because of the extream valve spring pressures being used on todays stockers.

Terry Cain · 01-17-2011, 12:01 PM

Thanks Terry,

Marvin Robinson · 01-17-2011, 01:30 PM

Quote:

Originally Posted by X-TECH MAN

You can run full roller rockers of the correct rocker ratio for your combo. No "Over the top" style such as Jessel. or shaft rockers on a chev or individual stud rockers on something like a 340/360 MoPar. You have to maintain the OEM configuration and mounting. This came about to increase reliabiliy in some engines because of the extream valve spring pressures being used on todays stockers.

It would be nice if NHRA took this same enlightened approach.... it would save money and broken parts.

john corcoran jr · 01-18-2011, 01:41 AM

Dear Marv,
If you want to use roller rockers, NHRA will let you. You can also put in a roller cam and an aluminum intake manifold and you can even use a transbrake valve body in the trans. They call it SUPER STOCK. You have to be careful what you wish for, you might wake up one morning and find out that your stocker can only run in Super Stock. Since Indy in 1985, when over a dozen stockers got bounced from tech for improper valve spring pressure, the stocker rules have been diluted and corrupted from the original concept and pushed closer to Super Stock rules. Unlimited cam duration, any valve job,beehive valve springs with unlimited valve pressure, non factory lifters all used to be Super Stock only items, now found on every stocker that can afford them. I know we can't go back to the old rules but roller rockers in stockers will just put one more nail in Stock Eliminator's coffin. Call me when you get a chance.
John

greg fulk · 01-18-2011, 02:56 AM

Marv I agree & having an Olds I understand how this simple change could fix a pis poor factory set-up. I'm sure the big block Chevy guys would love it too.

Alan Roehrich · 01-18-2011, 03:29 AM

I'm not having any rocker trouble. I'm not wanting roller rockers in Stock.

Marvin Robinson · 01-18-2011, 08:03 AM

Greg, at least the BB Chevy guys can get good aftermarket replacement parts for their valvetrains (hardened rockers, better metals, etc.). Trying to find or engineer stuff that works on your own can cost a fortune on a combo that's not mainstream.

Marvin Robinson · 01-18-2011, 08:21 AM

John, you forgot about aluminum heads, 4-link & coilovers, wheel tubs, big tires, little seats, motor plates, etc. It costs a lot more to setup an SS car that's competitive... not looking for power edge (at least not with repl rockers) just parts that won't break and don't cost a mint (and can be found). OH! wait a minute.... these are RACE cars -- NOTHING is cheap!!! ..... LOL

Jim Kaekel · 01-18-2011, 09:43 AM

Marvin: Get a hold of Jim Bailey. He can fix your rocker problems.

http://www.finishedracing.com/

01-17-2011, 11:28 AM	#1
Terry Cain Senior Member Join Date: Feb 2008 Location: Georgetown, Indiana (close to Louisville, KY) Posts: 761 Likes: 494 Liked 224 Times in 103 Posts	Roller rockers I saw on here once before IHRA allows roller rockers in Stock. Are you allowed to run FULL roller rockers or just roller tips? Is this just for crate motors or all? __________________ Terry Cain ???? STK tcain@twc.com

01-17-2011, 12:01 PM	#3
Terry Cain Senior Member Join Date: Feb 2008 Location: Georgetown, Indiana (close to Louisville, KY) Posts: 761 Likes: 494 Liked 224 Times in 103 Posts	Re: Roller rockers Thanks Terry, __________________ Terry Cain ???? STK tcain@twc.com

01-18-2011, 01:41 AM	#5
john corcoran jr Junior Member Join Date: Oct 2003 Location: darien, il Posts: 54 Likes: 0 Liked 19 Times in 11 Posts	Re: Roller rockers Dear Marv, If you want to use roller rockers, NHRA will let you. You can also put in a roller cam and an aluminum intake manifold and you can even use a transbrake valve body in the trans. They call it SUPER STOCK. You have to be careful what you wish for, you might wake up one morning and find out that your stocker can only run in Super Stock. Since Indy in 1985, when over a dozen stockers got bounced from tech for improper valve spring pressure, the stocker rules have been diluted and corrupted from the original concept and pushed closer to Super Stock rules. Unlimited cam duration, any valve job,beehive valve springs with unlimited valve pressure, non factory lifters all used to be Super Stock only items, now found on every stocker that can afford them. I know we can't go back to the old rules but roller rockers in stockers will just put one more nail in Stock Eliminator's coffin. Call me when you get a chance. John

01-18-2011, 02:56 AM	#6
greg fulk VIP Member Join Date: Jan 2003 Location: jackson Posts: 1,165 Likes: 0 Liked 5 Times in 3 Posts	Re: Roller rockers Marv I agree & having an Olds I understand how this simple change could fix a pis poor factory set-up. I'm sure the big block Chevy guys would love it too. __________________ Greg Fulk 308 308X P/SA "ALL AMERICAN"

01-18-2011, 03:29 AM	#7
Alan Roehrich VIP Member Join Date: May 2006 Location: Murfreesboro TN Posts: 4,934 Likes: 1,019 Liked 1,093 Times in 286 Posts	Re: Roller rockers I'm not having any rocker trouble. I'm not wanting roller rockers in Stock. __________________ Alan Roehrich 212A G/S

01-18-2011, 08:03 AM	#8
Marvin Robinson Member Join Date: Jun 2005 Location: Gary, IN Posts: 139 Likes: 0 Liked 0 Times in 0 Posts	Re: Roller rockers Greg, at least the BB Chevy guys can get good aftermarket replacement parts for their valvetrains (hardened rockers, better metals, etc.). Trying to find or engineer stuff that works on your own can cost a fortune on a combo that's not mainstream. __________________ Marvin Robinson 3188 STK/SS

01-18-2011, 08:21 AM	#9
Marvin Robinson Member Join Date: Jun 2005 Location: Gary, IN Posts: 139 Likes: 0 Liked 0 Times in 0 Posts	Re: Roller rockers John, you forgot about aluminum heads, 4-link & coilovers, wheel tubs, big tires, little seats, motor plates, etc. It costs a lot more to setup an SS car that's competitive... not looking for power edge (at least not with repl rockers) just parts that won't break and don't cost a mint (and can be found). OH! wait a minute.... these are RACE cars -- NOTHING is cheap!!! ..... LOL __________________ Marvin Robinson 3188 STK/SS

01-18-2011, 09:43 AM	#10
Jim Kaekel VIP Member Join Date: Jul 2002 Location: Michigan Posts: 1,222 Likes: 134 Liked 498 Times in 104 Posts	Re: Roller rockers Marvin: Get a hold of Jim Bailey. He can fix your rocker problems. http://www.finishedracing.com/ __________________ Jim Kaekel 3836 STK