Best Rocker arms for Eddy RPM heads?
#2088251
06/08/16 11:21 AM
06/08/16 11:21 AM
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Joined: Feb 2006
Posts: 1,051
The Great White North
RAMM
OP
super stock
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OP
super stock
Joined: Feb 2006
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The Great White North
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Looking for some real world experience on this. I know this shouldn't be a hard question to answer. Just wondering what people have found to be the best, the best as in --Accuracy(of ratio) , Geometry, Reliability. These are rockers I plan to use on this years EMC entry in the SPEC Bigblock class. Any advice would be welcome.
Hoping AndyF chimes in here and B3Re Thanks, J.Rob
Last edited by RAMM; 06/08/16 11:24 AM.
2009 PHR\EMC Competitor
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Re: Best Rocker arms for Eddy RPM heads?
[Re: RAMM]
#2088312
06/08/16 01:09 PM
06/08/16 01:09 PM
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Joined: Jan 2003
Posts: 14,506
So. Burlington, Vt.
fast68plymouth
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I Live Here
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So. Burlington, Vt.
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I'd run the Comp ultra-pro magnums.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
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Re: Best Rocker arms for Eddy RPM heads?
[Re: RAMM]
#2088318
06/08/16 01:18 PM
06/08/16 01:18 PM
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Joined: Jul 2004
Posts: 19,318
State of confusion
Thumperdart
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I Live Here
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Older HS`s w/lash caps not perfect but good geometry and scrub and a solid Isky roller...........You didn't specify what cam you will run...........
72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
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Re: Best Rocker arms for Eddy RPM heads?
[Re: Thumperdart]
#2088383
06/08/16 02:48 PM
06/08/16 02:48 PM
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Joined: Feb 2006
Posts: 1,051
The Great White North
RAMM
OP
super stock
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OP
super stock
Joined: Feb 2006
Posts: 1,051
The Great White North
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Older HS`s w/lash caps not perfect but good geometry and scrub and a solid Isky roller...........You didn't specify what cam you will run........... You're right whoops, probably .710"+ hydraulic roller is mandated. J.Rob
2009 PHR\EMC Competitor
2010 PHR\EMC Competitor
2011 PHR\EMC Competitor
2012 PHR\EMC Competitor
2013 PHR\EMC Competitor
2014 HotRod/EMC Competitor
2015 HotRod/EMC NoShow
2016 HotRod/EMC 3rd place SPEC Bigblock
2018 HotRod/EMC 7th place G3
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Re: Best Rocker arms for Eddy RPM heads?
[Re: fast68plymouth]
#2088384
06/08/16 02:49 PM
06/08/16 02:49 PM
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Joined: Feb 2006
Posts: 1,051
The Great White North
RAMM
OP
super stock
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OP
super stock
Joined: Feb 2006
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The Great White North
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I'd run the Comp ultra-pro magnums. What specifically do you like about them? I've never used just kinda thought they looked heavy and therefore klunky. I also see they are no longer offered in a 1.6 ratio. Wonder why? J.Rob
Last edited by RAMM; 06/08/16 02:51 PM.
2009 PHR\EMC Competitor
2010 PHR\EMC Competitor
2011 PHR\EMC Competitor
2012 PHR\EMC Competitor
2013 PHR\EMC Competitor
2014 HotRod/EMC Competitor
2015 HotRod/EMC NoShow
2016 HotRod/EMC 3rd place SPEC Bigblock
2018 HotRod/EMC 7th place G3
|
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Re: Best Rocker arms for Eddy RPM heads?
[Re: RAMM]
#2088410
06/08/16 03:39 PM
06/08/16 03:39 PM
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Joined: Dec 2010
Posts: 1,035
Missouri U.S.A.
71yelladustr
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super stock
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Missouri U.S.A.
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Another vote for Comp ultra pro magnums on Eddy RPM heads. The scrub is good and I also like that they require conventional ball/ball pushrods instead of ball/cup style. Had an issue with shaft galling with the earlier non-bushed pro magnums. The ultra pro magnums are bushed and have been trouble so far with with comp 951 springs and solid roller cam.
392 gen III hemi on E-85 727 trans Dana 60
10.02@134
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Re: Best Rocker arms for Eddy RPM heads?
[Re: RAMM]
#2088460
06/08/16 05:02 PM
06/08/16 05:02 PM
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Joined: Jan 2003
Posts: 14,506
So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,506
So. Burlington, Vt.
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I'd run the Comp ultra-pro magnums. What specifically do you like about them? I've never used just kinda thought they looked heavy and therefore klunky. I also see they are no longer offered in a 1.6 ratio. Wonder why? J.Rob Afaik they were only ever offered in a 1.5, so I doubt that's going to work for you in this instance. As was already mentioned, the overall geometry seems to be pretty good with that rocker on those heads. They really aren't that heavy, and since most of the weight is closer to the shaft, my guess is they have a lower moment of inertia than the aluminum alternatives. For what you're looking to do, I think T&D is probably the way to go.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
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Re: Best Rocker arms for Eddy RPM heads?
[Re: 71yelladustr]
#2089392
06/09/16 11:23 PM
06/09/16 11:23 PM
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Joined: Jul 2003
Posts: 3,378
Rancho Cordova, CA
Exit1965
master
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master
Joined: Jul 2003
Posts: 3,378
Rancho Cordova, CA
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Another vote for Comp ultra pro magnums on Eddy RPM heads. The scrub is good and I also like that they require conventional ball/ball pushrods instead of ball/cup style. Had an issue with shaft galling with the earlier non-bushed pro magnums. The ultra pro magnums are bushed and have been trouble so far with with comp 951 springs and solid roller cam. You mean "no" trouble?
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Re: Best Rocker arms for Eddy RPM heads?
[Re: ahy]
#2089614
06/10/16 01:21 PM
06/10/16 01:21 PM
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Joined: Jul 2013
Posts: 561
USA
B3RE
mopar
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mopar
Joined: Jul 2013
Posts: 561
USA
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Jesse, I would use a rocker with a cup style adjuster, so that limits you a good bit. Also, are you planning on running the stock length valves in the Eddys and getting enough installed height elsewhere? There is going to be a whole lot more to this selection than just experience with other combinations, IMO. Rule specifics, and creative interpretation, are going to dictate which direction you will need to go. I think a custom T&D rocker and relocated shafts are likely going to be the solutions in this case. An off the shelf part number isn't going to do it. If you want to call me, I can explain in more detail. 717-497-6572 
Mike Beachel
I didn't write the rules of math nor create the laws of physics, I am just bound by them.
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Re: Best Rocker arms for Eddy RPM heads?
[Re: B3RE]
#2089722
06/10/16 05:12 PM
06/10/16 05:12 PM
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Joined: Feb 2006
Posts: 1,051
The Great White North
RAMM
OP
super stock
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OP
super stock
Joined: Feb 2006
Posts: 1,051
The Great White North
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Jesse, I would use a rocker with a cup style adjuster, so that limits you a good bit. Also, are you planning on running the stock length valves in the Eddys and getting enough installed height elsewhere? There is going to be a whole lot more to this selection than just experience with other combinations, IMO. Rule specifics, and creative interpretation, are going to dictate which direction you will need to go. I think a custom T&D rocker and relocated shafts are likely going to be the solutions in this case. An off the shelf part number isn't going to do it. If you want to call me, I can explain in more detail. 717-497-6572 I'm actually not looking to get into re-engineering the valvetrain on this year's EMC effort. I actually want to keep this as simple as possible and don't really want to ante up for T&D's this time. Installed height is 2.00" and .708" lift should be easily doable in this regard. I ordered the Comp Ultra-Pro Magnums and would like to maximize these. I appreciate the offer Mike and wouldn't mind calling you to pick your brain, perhaps next week sometime. J.Rob
2009 PHR\EMC Competitor
2010 PHR\EMC Competitor
2011 PHR\EMC Competitor
2012 PHR\EMC Competitor
2013 PHR\EMC Competitor
2014 HotRod/EMC Competitor
2015 HotRod/EMC NoShow
2016 HotRod/EMC 3rd place SPEC Bigblock
2018 HotRod/EMC 7th place G3
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Re: Best Rocker arms for Eddy RPM heads?
[Re: RAMM]
#2089868
06/10/16 11:13 PM
06/10/16 11:13 PM
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Joined: Jul 2013
Posts: 561
USA
B3RE
mopar
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mopar
Joined: Jul 2013
Posts: 561
USA
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Jesse, I would use a rocker with a cup style adjuster, so that limits you a good bit. Also, are you planning on running the stock length valves in the Eddys and getting enough installed height elsewhere? There is going to be a whole lot more to this selection than just experience with other combinations, IMO. Rule specifics, and creative interpretation, are going to dictate which direction you will need to go. I think a custom T&D rocker and relocated shafts are likely going to be the solutions in this case. An off the shelf part number isn't going to do it. If you want to call me, I can explain in more detail. 717-497-6572 I'm actually not looking to get into re-engineering the valvetrain on this year's EMC effort. I actually want to keep this as simple as possible and don't really want to ante up for T&D's this time. Installed height is 2.00" and .708" lift should be easily doable in this regard. I ordered the Comp Ultra-Pro Magnums and would like to maximize these. I appreciate the offer Mike and wouldn't mind calling you to pick your brain, perhaps next week sometime. J.Rob Pick my brain? That'll be a short call.  Seriously though, I'd be happy to chat with you.
Mike Beachel
I didn't write the rules of math nor create the laws of physics, I am just bound by them.
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