solid roller rockers
Team Owner
Joined: Aug 2006
Posts: 24,125
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From: Columbia Missouri
Hey man it was great meeting you this last weekend. I hope you had fun walking around in the cold and the rain.
Standard stamped rockers get better contact, but rollers have a smooth roller trunnion. It's a shame no one makes a good stamped rocker with roller trunnions.
Either should be fine unless you're expecting very high RPMs in which case I would choose stamped.
NCM Grand Opening Veteran
Joined: Sep 2005
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From: South of giving a damn
St. Jude Donor '11, '17
Sorry DB, I would never choose stamped. I've broken stamped rockers on mild street engines before. This time I'm building w/Comp Pro Magnums. All the majors make good roller rockers, just don't buy some no name ebay junk. If you are running high RPM then you want a stud girdle too.
Last edited by ratflinger; Apr 15, 2007 at 06:28 PM.
Thread Starter
Safety Car
Joined: Jan 2004
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From: Making my plane take off from a treadmill
Hey man it was great meeting you this last weekend. I hope you had fun walking around in the cold and the rain.
Standard stamped rockers get better contact, but rollers have a smooth roller trunnion. It's a shame no one makes a good stamped rocker with roller trunnions.
Either should be fine unless you're expecting very high RPMs in which case I would choose stamped.
Standard stamped rockers get better contact, but rollers have a smooth roller trunnion. It's a shame no one makes a good stamped rocker with roller trunnions.
Either should be fine unless you're expecting very high RPMs in which case I would choose stamped.
thanks for the info but we've never met, lol i'm in southern california
Team Owner
Joined: Aug 2006
Posts: 24,125
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From: Columbia Missouri
Drifting
Joined: Aug 2004
Posts: 1,883
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From: Lubbock TX
Comp Pro Magnums or if you like aluminum, try Harland Sharps. There are a few sets of Pro Magnums on fleabay that can be had for not much over $250 shipped. Part of it depends on what lift cam you're running. The 3.75 x 4.600 solid roller engine I'm building will have net lift in the .730 range, I'm going Jesel for durability, ease of maintenance and because I hate stud girdles. I wouldn't even think about a stamped rocker on a solid roller engine, they ain't made for it. I saw a guy try 'em on a big block with about .680 lift, took less than 100 miles for the first pushrod to poke thru the rocker and when we tore it down, there were several close to doing the same.
Race Director
Joined: Apr 2000
Posts: 17,673
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From: Who says "Nothing is impossible" ? I've been doing nothing for years.
I have the Comp Cams Hi Tech rollers, they are stainless steel and the last roller rocker you will ever by. They are a like the Pro Magnums, except a little more expensive.
I think they are worth it though as you get a life time guarantee, that's right, you send them a worn out Hi Tech RR and you get a brand new one back for the price of shipping, I have got four replaced so far
I think they are worth it though as you get a life time guarantee, that's right, you send them a worn out Hi Tech RR and you get a brand new one back for the price of shipping, I have got four replaced so far
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Burning Brakes
Joined: Feb 2005
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Comp Cams Roller Rockers
I have the Comp Cams Hi Tech rollers, they are stainless steel and the last roller rocker you will ever by. They are a like the Pro Magnums, except a little more expensive.
I think they are worth it though as you get a life time guarantee, that's right, you send them a worn out Hi Tech RR and you get a brand new one back for the price of shipping, I have got four replaced so far
I think they are worth it though as you get a life time guarantee, that's right, you send them a worn out Hi Tech RR and you get a brand new one back for the price of shipping, I have got four replaced so far
I'm not 100% certain tonight but I don't believe the "Hi-Tech Stainless" actually do have the same warranty, but they are rebuildable where the Pro-Magnums are not.
I am positive about the warranty on the Pro-Magnums however. But you must read the fine print here too, as the warranty only applies to the rocker "body" itself against breakage, not the trunnion rollers or the roller tip!
(Add) 63Mako: (Correction) The Pro-Magnums are not stainless steel, they are made with 8650-Chromemoly, same material as many wrist pins! Actually 3X stronger than the aluminums!
Thanks, Gary in N.Y.
P.S. Either way both rockers are excellent. I use a number of the Pro-Magnums here for the 100% stock appearing units, as they fit under the "bone-stock" factory valve cover height with a single thick valve cover gasket!
Last edited by GOSFAST; Apr 15, 2007 at 08:41 PM. Reason: Add info!
Team Owner
Joined: Aug 2006
Posts: 24,125
Likes: 15
From: Columbia Missouri
Sorry DB, I would never choose stamped. I've broken stamped rockers on mild street engines before. This time I'm building w/Comp Pro Magnums. All the majors make good roller rockers, just don't buy some no name ebay junk. If you are running high RPM then you want a stud girdle too.
I think the later stamped rockers, like found on the LT1 motors have a much thicker wall, and are a lot sturdier. I see your point though.
Race Director
Joined: Apr 2000
Posts: 17,673
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From: Who says "Nothing is impossible" ? I've been doing nothing for years.
GOSFAST I was ready to pay for a rebuild of the rockers, it was "Red" at Comp that informed me that they had a lifetime warranty so I never paid a cent.
The problem I was having was happening to the "ears" of the rocker that hold the roller so I guess that would classify as the "body" of the rocker
The problem I was having was happening to the "ears" of the rocker that hold the roller so I guess that would classify as the "body" of the rocker
Race Director
Joined: May 2005
Posts: 10,674
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From: Millington Illinois
St. Jude Donor '08-'09
My machinist recommended the Crower Stainless Steel Full roller rockers but they are big bucks. They are also rebuildable. I couldn't afford them so I went with the Pro Magnums.
Last edited by 63mako; Apr 15, 2007 at 10:49 PM.
The ORIGINAL and bestest
Joined: Oct 2000
Posts: 10,009
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From: Toronto Ontario
Toronto Events Coordinator
Sorry DB, I would never choose stamped. I've broken stamped rockers on mild street engines before. This time I'm building w/Comp Pro Magnums. All the majors make good roller rockers, just don't buy some no name ebay junk. If you are running high RPM then you want a stud girdle too.
I have Comp Pro Magnums.
Le Mans Master
Joined: Oct 2001
Posts: 5,943
Likes: 3
From: Wildwood IL
I have Comp Pro Magnums too. But be aware....they do not have the proper clearance for the larger 1.550 valve spring retainers that come on certain heads...like AFR's! Need a bit of work to fit....
Eddie
But be aware....they do not have the proper clearance for the larger 1.550 valve spring retainers that come on certain heads...like AFR's! Need a bit of work to fit....Eddie
Advanced
Joined: Feb 2007
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Maybe try to reset the guide plates. Have had some past problems with the AFR heads couple times myself.
Harry P. Hunter
Le Mans Master
Joined: Oct 2001
Posts: 5,943
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From: Wildwood IL
good eye Harry
Eddie
