Roller Rockers - what's going on?
#170049
12/18/08 03:33 PM
12/18/08 03:33 PM
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Joined: Feb 2007
Posts: 467 Keminmaa
ArcticCuda
OP
mopar
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OP
mopar
Joined: Feb 2007
Posts: 467
Keminmaa
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Comp Cams 1321-16 roller rockers has been in back order since August. Now I tried to buy Crane 64792-1 rockers. Answer: Availabele after 7 weeks...
What is going on? Do I have to buy China Rockers.
Pepe / Finland Europe
1970 Plymouth GTX 440-6 1970 Plymouth PPR Cuda 489-4 1971 Plymouth Duster Bad Romance 408-W2-8bbl
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Re: Roller Rockers - what's going on?
[Re: Hughes]
#170053
12/18/08 07:05 PM
12/18/08 07:05 PM
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Joined: Jan 2003
Posts: 5,446 Indiana
YO7_A66
master
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master
Joined: Jan 2003
Posts: 5,446
Indiana
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Hughes, Can you give us some basic spec's on the 1506S & 1510S rocker kits? (max spring pressures, max spring od's, etc.) Do you machine these in house? What spec of aluminum do these have? They look like nice sets, are these stock type replacements? Are they bushed or are they roller bearings? Thanks
1970 YO7 A66 [Canadian Export] F8 Challenger 340 (Currently in shop for stroker assy.)
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Re: Roller Rockers - what's going on?
[Re: YO7_A66]
#170055
12/18/08 07:48 PM
12/18/08 07:48 PM
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Joined: Jan 2003
Posts: 15,439 Val-haul-ass... eventually
BradH
Taking time off to work on my car
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Taking time off to work on my car
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
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Quote:
Hughes, Can you give us some basic spec's on the 1506S & 1510S rocker kits? (max spring pressures, max spring od's, etc.) Do you machine these in house? What spec of aluminum do these have? They look like nice sets, are these stock type replacements? Are they bushed or are they roller bearings?
Not Hughes, but I run them on my Challenger: - I use them w/ 1.55" OD springs and there is adequate clearance - Don't know the max pressure, but I'm using them on the street w/ approx. 400#s open on a .600" solid flat-tappet - They're made by a company that also manufactures rockers for other brands, pistons, etc. - 2024-T3511 - Stock-type replacement part, although you wouldn't want to use them on OEM shafts IMO - Neither bushed nor roller bearings; they ride on the fulcrum machined into the main body of the rocker (just like a Crane "gold" rocker)
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Re: Roller Rockers - what's going on?
[Re: Scamp408]
#170059
12/18/08 08:45 PM
12/18/08 08:45 PM
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Joined: Jan 2003
Posts: 5,487 SoCal
Brian Hafliger
master
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master
Joined: Jan 2003
Posts: 5,487
SoCal
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Crane is changing the design of their mopar rockers and shafts....Comp rockers and hardware is available, just get shafts and assemble them yourself. Comp won't have shafts for a while... HS rockers IMO, and from what little I see of them, have a not so great geometry...they like to hang off the edge of the valve tip. Haven't tried any of Hughes stuff yet, but I have tried Racer Brown's rockers and they are very nice!! Brian
Brian Hafliger
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Re: Roller Rockers - what's going on?
[Re: Thumperdart]
#170061
12/19/08 12:11 AM
12/19/08 12:11 AM
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Joined: Jan 2003
Posts: 5,487 SoCal
Brian Hafliger
master
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master
Joined: Jan 2003
Posts: 5,487
SoCal
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Quote:
My h/s`s did start a bit inboard on the valve tip but after using lash caps, they seem to be fine......many street miles and several passes and all looks well.
The BB's are better than the SB's...not much but some! I wish HS would re-design their rocker bodies and do like TD and offer a smaller shaft with sleeves to fit the pedestals and offer 1.7 as a shelf and not a special "lets charge out the ying yang" price!
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Re: Roller Rockers - what's going on?
[Re: Brian Hafliger]
#170062
12/19/08 01:06 AM
12/19/08 01:06 AM
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Joined: Jan 2003
Posts: 14,531 So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,531
So. Burlington, Vt.
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the HS rockers for a BB are a tad long when used on OE or Edelbrock heads. still usable, but not the ideal contact pattern.
however, they fit the Indy heads quite nicely. basically perfect roller placement and plenty of spring/retainer clearance.
the ICH rockers seem to be split the difference in the length between the shaft centerline and the roller tip centerline compared to the longer HS rockers, and the noticably shorter Crane and Comp rockers.
attached is a HS rocker on an Indy head.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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Re: Roller Rockers - what's going on?
[Re: dizuster]
#170063
12/19/08 09:10 AM
12/19/08 09:10 AM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Quote:
I had hughes guaranteed for life billet small block rockers around '01, broke one, and then I was told that they didn't have them anymore. They gave me standard extruded rockers as a replacement, but I lost my guarantee for life...
Just my
that would TICK ME OFF!
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Re: Roller Rockers - what's going on?
#170065
12/19/08 01:10 PM
12/19/08 01:10 PM
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Joined: Jan 2005
Posts: 3,638 Oakland, MI
dizuster
master
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master
Joined: Jan 2005
Posts: 3,638
Oakland, MI
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Quote:
Quote:
I had hughes guaranteed for life billet small block rockers around '01, broke one, and then I was told that they didn't have them anymore. They gave me standard extruded rockers as a replacement, but I lost my guarantee for life...
Just my
that would TICK ME OFF!
That's only the rocker arm portion of the story, I won't get into the 3 cams...
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