|
![]() |
#1 |
Senior Member
Join Date: Feb 2008
Location: Georgetown, Indiana (close to Louisville, KY)
Posts: 776
Likes: 530
Liked 230 Times in 106 Posts
|
![]()
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?
|
![]() |
![]() |
![]() |
#2 |
Banned
Join Date: Dec 2007
Location: Lake Placid, Florida
Posts: 3,203
Likes: 1,047
Liked 235 Times in 110 Posts
|
![]()
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.
|
![]() |
![]() |
![]() |
#3 |
Senior Member
Join Date: Feb 2008
Location: Georgetown, Indiana (close to Louisville, KY)
Posts: 776
Likes: 530
Liked 230 Times in 106 Posts
|
![]()
Thanks Terry,
|
![]() |
![]() |
![]() |
#4 | |
Member
Join Date: Jun 2005
Location: Gary, IN
Posts: 139
Likes: 0
Liked 0 Times in 0 Posts
|
![]() Quote:
__________________
Marvin Robinson 3188 STK/SS |
|
![]() |
![]() |
![]() |
#5 |
Junior Member
Join Date: Oct 2003
Location: darien, il
Posts: 53
Likes: 0
Liked 16 Times in 10 Posts
|
![]()
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 |
![]() |
![]() |
![]() |
#6 |
VIP Member
Join Date: Jan 2003
Location: jackson
Posts: 1,165
Likes: 0
Liked 5 Times in 3 Posts
|
![]()
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" |
![]() |
![]() |
![]() |
#7 |
Veteran Member
Join Date: May 2006
Location: Murfreesboro TN
Posts: 5,107
Likes: 1,564
Liked 1,795 Times in 409 Posts
|
![]()
I'm not having any rocker trouble. I'm not wanting roller rockers in Stock.
__________________
Alan Roehrich 212A G/S |
![]() |
![]() |
![]() |
#8 |
Member
Join Date: Jun 2005
Location: Gary, IN
Posts: 139
Likes: 0
Liked 0 Times in 0 Posts
|
![]()
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 |
![]() |
![]() |
![]() |
#9 |
Member
Join Date: Jun 2005
Location: Gary, IN
Posts: 139
Likes: 0
Liked 0 Times in 0 Posts
|
![]()
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 |
![]() |
![]() |
![]() |
#10 |
VIP Member
Join Date: Jul 2002
Location: Michigan
Posts: 1,227
Likes: 133
Liked 530 Times in 108 Posts
|
![]()
__________________
Jim Kaekel 3836 STK |
![]() |
![]() |
![]() |
|
|