How do Indy's rocker shafts hold up to roller springs? - Moparts Forums

Register Log In Moparts Forums Unlawfl's Race & Engine Tech How do Indy's rocker shafts hold up to roller springs?

Print Thread

How do Indy's rocker shafts hold up to roller springs? #965903 04/04/11 04:39 PM 04/04/11 04:39 PM
Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually B BradH OP Taking time off to work on my car
BradH OP Taking time off to work on my car B Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually	Just curious if the Indy rocker arm shafts like they provide w/ their 440-1 kit hold up to 600#s OK, or if they're not beefy enough and end up oblonged / egg shaped after usage. These would be for use w/ plain-bearing style rockers, not needle-bearing fulcrums.

Re: How do Indy's rocker shafts hold up to roller springs? [Re: BradH] #965904 04/04/11 05:15 PM 04/04/11 05:15 PM
Joined: Mar 2006 Posts: 9,910 Eighty Four, PA B G Racing master
B G Racing master Joined: Mar 2006 Posts: 9,910 Eighty Four, PA	We use their thick wall shafts with zero failures. [IMG]http://i430.photobucket.com/albums/qq21/ajcasini/max_zpsdppwd9km.jpg[/IMG]

Re: How do Indy's rocker shafts hold up to roller springs? [Re: BradH] #965905 04/04/11 10:09 PM 04/04/11 10:09 PM
Joined: Mar 2009 Posts: 1,169 Virginia Beach, VA O Old School super stock
Old School super stock O Joined: Mar 2009 Posts: 1,169 Virginia Beach, VA	Quote: Just curious if the Indy rocker arm shafts like they provide w/ their 440-1 kit hold up to 600#s OK, or if they're not beefy enough and end up oblonged / egg shaped after usage. These would be for use w/ plain-bearing style rockers, not needle-bearing fulcrums. shafts seem ok, but this is what there rocker arms do with to much pressure.... 6568679-brokenrockerarms2.jpg (116 downloads) 68 cuda formula S 588" bb 5sp 70 CUDA CONVERT 500" 5SP (SUBLIME) 70 CUDA CONVERT 500" 5SP (PLUMCRAZY):TOO MUCH HORSEPOWER, IS ALMOST ENOUGH!

Re: How do Indy's rocker shafts hold up to roller springs? [Re: Old School] #965906 04/04/11 10:45 PM 04/04/11 10:45 PM
Joined: Jun 2010 Posts: 469 Tennessee S steeldust mopar
steeldust mopar S Joined: Jun 2010 Posts: 469 Tennessee	Quote: Quote: Just curious if the Indy rocker arm shafts like they provide w/ their 440-1 kit hold up to 600#s OK, or if they're not beefy enough and end up oblonged / egg shaped after usage. These would be for use w/ plain-bearing style rockers, not needle-bearing fulcrums. shafts seem ok, but this is what there rocker arms do with to much pressure.... I broke three 1.5 offset rocker on a 640 lift cam last year they were IND black arms i know four guys that have broke rockers and they went to JESEL but i got me a set of T&D shaft mount rockers i got 1.6 rockers on a 725 lift cam i will see if they hold up in a 572 stoker. GOOD LUCK 6568771-67253_152855518085378_100000827931162_228698_4851710_a.jpg (51 downloads)

Re: How do Indy's rocker shafts hold up to roller springs? [Re: Old School] #965907 04/04/11 11:26 PM 04/04/11 11:26 PM
Joined: Oct 2009 Posts: 1,288 Oregon sg66mopar pro stock
sg66mopar pro stock Joined: Oct 2009 Posts: 1,288 Oregon	shafts seem ok, but this is what there rocker arms do with to much pressure.... Same situation here. A little more lift and spring pressure but not many passes before we broke rockers.

Re: How do Indy's rocker shafts hold up to roller springs? [Re: sg66mopar] #965908 04/05/11 12:05 AM 04/05/11 12:05 AM
Joined: Aug 2005 Posts: 761 KY J juicedcuda super stock
juicedcuda super stock J Joined: Aug 2005 Posts: 761 KY	They dont! 1970 Plymouth 'Cuda 1970 Plum Crazy "Gold Duster" 1973 Gold Duster

Re: How do Indy's rocker shafts hold up to roller springs? [Re: BradH] #965909 04/05/11 10:54 AM 04/05/11 10:54 AM
Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually B BradH OP Taking time off to work on my car
BradH OP Taking time off to work on my car B Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually	I'm well aware of the issues that the Indy (Dove) rockers have w/ roller-level spring pressures and am only interested in how the shafts themselves hold up. I would never run the Dove rockers w/ that much spring pressure.

Re: How do Indy's rocker shafts hold up to roller springs? [Re: Old School] #965910 04/05/11 11:31 AM 04/05/11 11:31 AM
Joined: Jan 2003 Posts: 16,925 NC 440Jim I Live Here
440Jim I Live Here Joined: Jan 2003 Posts: 16,925 NC	Quote: shafts seem ok, but this is what there rocker arms do with to much pressure.... What spring pressures and how much time were on the rockers?

Re: How do Indy's rocker shafts hold up to roller springs? [Re: steeldust] #965911 04/05/11 11:33 AM 04/05/11 11:33 AM
Joined: Jan 2003 Posts: 16,925 NC 440Jim I Live Here
440Jim I Live Here Joined: Jan 2003 Posts: 16,925 NC	Quote: I broke three 1.5 offset rocker on a 640 lift cam last year they were IND black arms i know four guys that have broke rockers What spring pressures and how many passes when you started breaking them?

Re: How do Indy's rocker shafts hold up to roller springs? [Re: BradH] #965912 04/05/11 11:50 AM 04/05/11 11:50 AM
Joined: Nov 2004 Posts: 16,477 On the run… BloFish I Live Here
BloFish I Live Here Joined: Nov 2004 Posts: 16,477 On the run…	Did you give up on the VI's Brad and switch to Indy? It really doesn't matter whether you win or lose… as long as you look good doing it! ‘65 A100 ‘69 ‘Cuda ‘73 Vega GT ‘06 Mega Cab ‘14 Mercedes SLK

Re: How do Indy's rocker shafts hold up to roller springs? [Re: BloFish] #965913 04/05/11 11:54 AM 04/05/11 11:54 AM
Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually B BradH OP Taking time off to work on my car
BradH OP Taking time off to work on my car B Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually	Quote: Did you give up on the VI's Brad and switch to Indy? The Stage VIs have a pending deal on them; this is just looking into options for shafts for the Victors since Hughes doesn't sell theirs separately anymore (only as part of rocker arm kits) and my used RAS shafts are going w/ the Stage VIs. Will still be using Hughes/Probe rockers w/ the Victors.

Re: How do Indy's rocker shafts hold up to roller springs? [Re: BradH] #965914 04/05/11 12:27 PM 04/05/11 12:27 PM
Joined: Dec 2006 Posts: 235 Tucson AZ. RADAMX enthusiast
RADAMX enthusiast Joined: Dec 2006 Posts: 235 Tucson AZ.	definately run the thick wall shafts. the kit shafts will bend big time they are junk...I have no problems with My indy 1.5 black rockers 700 + lift and 7800 rpm..Knocking on wood as I type

Re: How do Indy's rocker shafts hold up to roller springs? [Re: BradH] #965915 04/05/11 12:41 PM 04/05/11 12:41 PM
Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually B BradH OP Taking time off to work on my car
BradH OP Taking time off to work on my car B Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually	Also curious to know if Harland Sharp's shafts are the same diameter as stock. They're really beefy, too, although the oil holes (as I recall) are done differently than what most other shafts have. Anyone run HS shafts w/ non-roller bearing rockers?

Re: How do Indy's rocker shafts hold up to roller springs? [Re: 440Jim] #965916 04/05/11 02:12 PM 04/05/11 02:12 PM
Joined: Mar 2009 Posts: 1,169 Virginia Beach, VA O Old School super stock
Old School super stock O Joined: Mar 2009 Posts: 1,169 Virginia Beach, VA	Quote: Quote: shafts seem ok, but this is what there rocker arms do with to much pressure.... What spring pressures and how much time were on the rockers? i just changed springs to k motion 950,s. they are about 755 @1.200. they did not last an hour. 68 cuda formula S 588" bb 5sp 70 CUDA CONVERT 500" 5SP (SUBLIME) 70 CUDA CONVERT 500" 5SP (PLUMCRAZY):TOO MUCH HORSEPOWER, IS ALMOST ENOUGH!

Re: How do Indy's rocker shafts hold up to roller springs? [Re: RADAMX] #965917 04/05/11 02:53 PM 04/05/11 02:53 PM
Joined: Jun 2009 Posts: 644 Minnesota Barnstorm mopar
Barnstorm mopar Joined: Jun 2009 Posts: 644 Minnesota	We use Mopar perf HD shafts with Comp 948 springs {950@ 1.20 open] and Indy black 1.5's...geometry is dead on with plenty of oil uptop. 440-1 offsets....broke 1 ex rocker in 15 yrs. Lucky? 6569786-6180939-IMG2413[1].jpg (54 downloads) The little old lady from Pasadena is back!

Re: How do Indy's rocker shafts hold up to roller springs? [Re: Old School] #965918 06/16/11 01:54 PM 06/16/11 01:54 PM
Joined: Aug 2008 Posts: 4,068 Mo. racerx master
racerx master Joined: Aug 2008 Posts: 4,068 Mo.	Quote: Quote: Just curious if the Indy rocker arm shafts like they provide w/ their 440-1 kit hold up to 600#s OK, or if they're not beefy enough and end up oblonged / egg shaped after usage. These would be for use w/ plain-bearing style rockers, not needle-bearing fulcrums. shafts seem ok, but this is what there rocker arms do with to much pressure.... ...I broke a rocker a few weeks ago with the car idling in the garage can't remember the spring presure off hand but the cam is a solid roller with 693/706 with 274/277@50 and it broke a rocker almost like in the shape of a C

Re: How do Indy's rocker shafts hold up to roller springs? [Re: 440Jim] #965919 06/16/11 02:14 PM 06/16/11 02:14 PM
Joined: Jun 2009 Posts: 877 ky 68roadrunner super stock
68roadrunner super stock Joined: Jun 2009 Posts: 877 ky	Quote: Quote: I broke three 1.5 offset rocker on a 640 lift cam last year they were IND black arms i know four guys that have broke rockers What spring pressures and how many passes when you started breaking them? mine was good for a hundred passes with 300# on the seat and 690# open. and also one shaft was cracked when i took them off. did not know they offered a thick wall version, thats what i get for not buying from bg.

Moderated by Al_Alguire, Hotwheelsjr, moparts, not_a_charger, RangerDan440, tboomer

Hop To

Powered by UBB.threads™ PHP Forum Software 7.7.1