|
Re: INDY SR BLUE 1.6 ROCKER FAILURES # 8 CYL INTAKE?
[Re: moparjohn]
#2531610
08/04/18 08:29 PM
08/04/18 08:29 PM
|
Joined: Jan 2003
Posts: 14,496
So. Burlington, Vt.
fast68plymouth
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 14,496
So. Burlington, Vt.
|
It was just their time.
Probably wise to replace them all........ especially if you’re running a roller cam with decent spring pressure.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
|
|
|
Re: INDY SR BLUE 1.6 ROCKER FAILURES # 8 CYL INTAKE?
[Re: moparjohn]
#2531678
08/04/18 11:02 PM
08/04/18 11:02 PM
|
Joined: Sep 2015
Posts: 1,096
Australia
ozymaxwedge
super stock
|
super stock
Joined: Sep 2015
Posts: 1,096
Australia
|
Push rod bent ? Valve touched piston ?
I have broken 2 Crane gold rockers but they are a little weaker to start with, at the time of failure the engines where being beat on.
Go buy a set of Hughes rockers that don't have needle roller bearings
1963 Plymouth Max Wedge
1971 Barracuda
|
|
|
Re: INDY SR BLUE 1.6 ROCKER FAILURES # 8 CYL INTAKE?
[Re: moparjohn]
#2531679
08/04/18 11:05 PM
08/04/18 11:05 PM
|
Joined: Sep 2015
Posts: 1,096
Australia
ozymaxwedge
super stock
|
super stock
Joined: Sep 2015
Posts: 1,096
Australia
|
Oh yeah, I think the last one we broke was #8
1963 Plymouth Max Wedge
1971 Barracuda
|
|
|
Re: INDY SR BLUE 1.6 ROCKER FAILURES # 8 CYL INTAKE?
[Re: a493demon]
#2531702
08/04/18 11:43 PM
08/04/18 11:43 PM
|
Joined: Feb 2005
Posts: 20,174
PA.
pittsburghracer
"Little"John
|
"Little"John
Joined: Feb 2005
Posts: 20,174
PA.
|
I have a set Of Indy rockers on my 360-1 heads but only have a small .650 lift solid cam in this engine. I bought a set of used T&D rockers from a moparts member that will be going on over the Winter when I step up to a roller cam  Untitled by John Cadamore, on Flickr
1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27
Livin and lovin life one day at a time
|
|
|
Re: INDY SR BLUE 1.6 ROCKER FAILURES # 8 CYL INTAKE?
[Re: moparjohn]
#2531802
08/05/18 09:45 AM
08/05/18 09:45 AM
|
crabman173
Unregistered
|
crabman173
Unregistered
|
Those Indy rockers --made by Dove have always been sold by Indy as the rocker--Indy KNOWS that they can't handle roller spring pressures or high spring pressures for long---You have experienced the same failure that hundreds of Indy customers have seen over the years--they run for a while but then--K Boom You use them on a street solid cam and they may last forever--use them in a serious race unit and well.....
Hughes, Harlands, Jesels, etc for real race engines
BTW I have never seen an Indy small block rocker do that but I have seen dozens of the BB units fail--replace the entire set now or risk future destruction
|
|
|
Re: INDY SR BLUE 1.6 ROCKER FAILURES # 8 CYL INTAKE?
[Re: Dave Hall]
#2531805
08/05/18 09:55 AM
08/05/18 09:55 AM
|
Joined: Jan 2003
Posts: 14,496
So. Burlington, Vt.
fast68plymouth
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 14,496
So. Burlington, Vt.
|
I had two sets of Comp steel rockers weld themselves to the shafts. .660 roller with just over 700lbs. over the nose. T&D or Jesel IMO. Before they started putting bushings in them, the Comp steel rockers were “rated” for 350lbs open load.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
|
|
|
Re: INDY SR BLUE 1.6 ROCKER FAILURES # 8 CYL INTAKE?
[Re: ]
#2531806
08/05/18 10:00 AM
08/05/18 10:00 AM
|
Joined: Jun 2008
Posts: 3,916
usa
lewtot184
master
|
master
Joined: Jun 2008
Posts: 3,916
usa
|
Those Indy rockers --made by Dove have always been sold by Indy as the rocker--Indy KNOWS that they can't handle roller spring pressures or high spring pressures for long---You have experienced the same failure that hundreds of Indy customers have seen over the years--they run for a while but then--K Boom You use them on a street solid cam and they may last forever--use them in a serious race unit and well.....
Hughes, Harlands, Jesels, etc for real race engines
BTW I have never seen an Indy small block rocker do that but I have seen dozens of the BB units fail--replace the entire set now or risk future destruction this! I've seen them break also. they're not a serious hot rod rocker.
|
|
|
Re: INDY SR BLUE 1.6 ROCKER FAILURES # 8 CYL INTAKE?
[Re: moparjohn]
#2531821
08/05/18 11:16 AM
08/05/18 11:16 AM
|
Joined: Oct 2015
Posts: 570
UK
rb446
mopar
|
mopar
Joined: Oct 2015
Posts: 570
UK
|
Some guys here running those rockers also had 1 showing signs of cracking, and they weren't running hefty spring pressures with their mild roller, happen to be on SR's as well, don't know which cyl it was on but it seems they are a mild perf application rocker only, they went HS rockers.
Last edited by rb446; 08/05/18 11:18 AM.
1969 'Cuda 446ci, best 9.96@133.9 in 1990
1971 340 'Cuda, best 11.01@122.8 in 1987
|
|
|
Re: INDY SR BLUE 1.6 ROCKER FAILURES # 8 CYL INTAKE?
[Re: ]
#2532020
08/05/18 08:13 PM
08/05/18 08:13 PM
|
Joined: Mar 2006
Posts: 9,835
MI, usa
dvw
master
|
master
Joined: Mar 2006
Posts: 9,835
MI, usa
|
Those Indy rockers --made by Dove have always been sold by Indy as the rocker--Indy KNOWS that they can't handle roller spring pressures or high spring pressures for long---You have experienced the same failure that hundreds of Indy customers have seen over the years--they run for a while but then--K Boom You use them on a street solid cam and they may last forever--use them in a serious race unit and well.....
Hughes, Harlands, Jesels, etc for real race engines
BTW I have never seen an Indy small block rocker do that but I have seen dozens of the BB units fail--replace the entire set now or risk future destruction Here's your answer right here. Doug
|
|
|
Re: INDY SR BLUE 1.6 ROCKER FAILURES # 8 CYL INTAKE?
[Re: moparjohn]
#2532070
08/05/18 10:08 PM
08/05/18 10:08 PM
|
crabman173
Unregistered
|
crabman173
Unregistered
|
Google Dove Rocker Arms and wowzer it pops right up--they are known Ford makers but also sold Indy all they wanted until they did not want them anymore--They still have them Call and let us know
how it goes
|
|
|
Re: INDY SR BLUE 1.6 ROCKER FAILURES # 8 CYL INTAKE?
[Re: moparjohn]
#2532240
08/06/18 12:35 PM
08/06/18 12:35 PM
|
Joined: Jan 2003
Posts: 14,496
So. Burlington, Vt.
fast68plymouth
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 14,496
So. Burlington, Vt.
|
I use the Mancini rockers made by HS when I’m looking for an “entry level” type rocker........ something along the lines of the Crane golds.
Of the stuff I’ve used recently, those are the least expensive rockers that I’ll trust, but I wouldn’t use them with a solid roller running high spring loads.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
|
|
|
Re: INDY SR BLUE 1.6 ROCKER FAILURES # 8 CYL INTAKE?
[Re: moparjohn]
#2532246
08/06/18 12:50 PM
08/06/18 12:50 PM
|
Joined: Jan 2003
Posts: 14,496
So. Burlington, Vt.
fast68plymouth
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 14,496
So. Burlington, Vt.
|
Most of that style of rocker are made from extrusions.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
|
|
|
|
|
 BILLS ROCKER.JPG "Name: IMG_0289 (1) BILLS ROCKER.JPG
Views: 898
Size: 91.82 KB
ID: 332267")
