Re: Clearance on Comp Cam Pro Magnum Rockers?
[Re: Moparguy383]
#2253420
02/14/17 10:11 AM
02/14/17 10:11 AM
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Joined: Jan 2003
Posts: 5,894
Florida
Locomotion
master
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master
Joined: Jan 2003
Posts: 5,894
Florida
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I use to use a sandpaper roll or grinding bit on a drill or die grinder, or put one in a drill press and jig-up the rocker so I can have more control to slide it up to the roll/bit upside-down for consistency. Take off as little as possible in an arc to clear. Smooth/polish the area afterwards.
Obviously, grinding is not a good idea because it weakens the rocker. My permanent solution was to find a set of beehive springs with similar specs.
Because of the original "loose tolerances", you may have to go back and touch them up during installation.
Last edited by Locomotion; 02/14/17 10:12 AM.
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Re: Clearance on Comp Cam Pro Magnum Rockers?
[Re: Locomotion]
#2253438
02/14/17 11:07 AM
02/14/17 11:07 AM
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Joined: Feb 2005
Posts: 4,313
Prospect, PA
BSB67
master
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master
Joined: Feb 2005
Posts: 4,313
Prospect, PA
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I use to use a sandpaper roll or grinding bit on a drill or die grinder, or put one in a drill press and jig-up the rocker so I can have more control to slide it up to the roll/bit upside-down for consistency. Take off as little as possible in an arc to clear. Smooth/polish the area afterwards.
Obviously, grinding is not a good idea because it weakens the rocker. My permanent solution was to find a set of beehive springs with similar specs.
Because of the original "loose tolerances", you may have to go back and touch them up during installation. I think he is talking between rockers for side to side clearance. Most will probably disagree, but if you think you can get it reasonably square with the axis, go for it.
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Re: Clearance on Comp Cam Pro Magnum Rockers?
[Re: Moparguy383]
#2253499
02/14/17 01:20 PM
02/14/17 01:20 PM
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Joined: Jul 2009
Posts: 490
IL
EchoSixMike
mopar
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mopar
Joined: Jul 2009
Posts: 490
IL
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Belt sander, fine grit and a steady hand is fine IME. Make sure valve/tip alignment is decent, you may need to alter the center spacers as well/instead. For small removal, a flat surface plate and sand paper works too. S/F....Ken M
Last edited by EchoSixMike; 02/14/17 01:20 PM.
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Re: Clearance on Comp Cam Pro Magnum Rockers?
[Re: Moparguy383]
#2253529
02/14/17 02:18 PM
02/14/17 02:18 PM
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Joined: Jan 2003
Posts: 14,496
So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,496
So. Burlington, Vt.
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I narrow up spacer between the rockers(I do it the lathe).
.015 side clearance per pair is plenty IMO.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
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Re: Clearance on Comp Cam Pro Magnum Rockers?
[Re: fast68plymouth]
#2253545
02/14/17 02:43 PM
02/14/17 02:43 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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I narrow up spacer between the rockers(I do it the lathe).
.015 side clearance per pair is plenty IMO. I agree.. I do them on the lathe or the mill.. .015 is what I use 
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Re: Clearance on Comp Cam Pro Magnum Rockers?
[Re: Dave Hall]
#2253547
02/14/17 02:52 PM
02/14/17 02:52 PM
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Joined: Jan 2003
Posts: 14,496
So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,496
So. Burlington, Vt.
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You shouldn't have to take anything from the rocker. Take it from the holdowns and the spacer. .030 is your friend. On an Indy BB head, using the Comp rockers and hold downs, the rockers contact the stands, not the hold downs....... So narrowing the hold downs in this application doesn't buy you any added clearance.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
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