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Bushing the Comp Cams Pro Magnum Rockers #1328937 10/30/12 10:22 PM 10/30/12 10:22 PM
Joined: Apr 2004 Posts: 323 Raleigh, NC Meangreen68 OP enthusiast
Meangreen68 OP enthusiast Joined: Apr 2004 Posts: 323 Raleigh, NC	These big block rockers are brand new from 2004. 1321-16. I'd like to get them bushed. I want to avoid any problems relating to galling. The shafts that came with the rockers have drilled oil supply holes, no banana grooves. Does Dan at Performance Only bush these rockers? If not, any suggestions? Thanks 7441885-Rockers1.jpg (90 downloads)

Re: Bushing the Comp Cams Pro Magnum Rockers [Re: Meangreen68] #1328938 10/30/12 10:55 PM 10/30/12 10:55 PM
Joined: May 2008 Posts: 5,399 Aurora, Colorado 451Mopar master
451Mopar master Joined: May 2008 Posts: 5,399 Aurora, Colorado	Not sure who does them, but a good idea. My friend had his seize on a big block.

Re: Bushing the Comp Cams Pro Magnum Rockers [Re: 451Mopar] #1328939 10/30/12 11:10 PM 10/30/12 11:10 PM
Joined: Apr 2004 Posts: 323 Raleigh, NC Meangreen68 OP enthusiast
Meangreen68 OP enthusiast Joined: Apr 2004 Posts: 323 Raleigh, NC	In another thread about the newer "Ultra Pros" it was mentioned that Comp Cams uses a "narrow rolled Teflon coated bushing." I'm going to call Comp Cams tomorrow to see if they'll supply me the bushings? Can't hurt to ask. 7441996-UltraPro1.jpg (74 downloads)

Re: Bushing the Comp Cams Pro Magnum Rockers [Re: Meangreen68] #1328940 10/30/12 11:31 PM 10/30/12 11:31 PM
Joined: Apr 2004 Posts: 323 Raleigh, NC Meangreen68 OP enthusiast
Meangreen68 OP enthusiast Joined: Apr 2004 Posts: 323 Raleigh, NC	I want to distance myself from this... 7442028-ProMagnum1.jpg (93 downloads)

Re: Bushing the Comp Cams Pro Magnum Rockers [Re: Meangreen68] #1328941 10/30/12 11:34 PM 10/30/12 11:34 PM
Joined: Jan 2003 Posts: 1,809 North Dakota Azzkikrcuda top fuel
Azzkikrcuda top fuel Joined: Jan 2003 Posts: 1,809 North Dakota	RAS can Bush them for you. What cam and spring pressure are you running? Unless you are running high spring pressure they usually work ok. http://www.rockerarms.com/

Re: Bushing the Comp Cams Pro Magnum Rockers [Re: Azzkikrcuda] #1328942 10/30/12 11:40 PM 10/30/12 11:40 PM
Joined: Jan 2004 Posts: 27,347 Today? Who Knows? 1_WILD_RT Management Trainee
1_WILD_RT Management Trainee Joined: Jan 2004 Posts: 27,347 Today? Who Knows?	Quote: RAS can Bush them for you. What cam and spring pressure are you running? Unless you are running high spring pressure they usually work ok. http://www.rockerarms.com/ While I agree RAS is the guys you'd like to do your rockers lately they haven't been getting much work out the door.. I know guys that have been using them for over 25 years that can't get a returned call or their parts back so if you choose to send them to RAS expect it to take years.... "The Armies of our ancestors were lucky, in that they were not trailed by a second army of pencil pushers."

Re: Bushing the Comp Cams Pro Magnum Rockers [Re: 1_WILD_RT] #1328943 10/30/12 11:50 PM 10/30/12 11:50 PM
Joined: Apr 2004 Posts: 323 Raleigh, NC Meangreen68 OP enthusiast
Meangreen68 OP enthusiast Joined: Apr 2004 Posts: 323 Raleigh, NC	I read that about RAS. That ain't happening. The cost of the newer rockers is around $700. The risk of not having them bushed could cost much more. The cost of having them bushed??? even less, if Comp Cams cuts me a deal for the bushings. I want longevity and peace of mind.

Re: Bushing the Comp Cams Pro Magnum Rockers [Re: Meangreen68] #1328944 10/31/12 12:48 AM 10/31/12 12:48 AM
Joined: Jan 2003 Posts: 75,020 U.S.S.A. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 75,020 U.S.S.A.	Quote: I want to distance myself from this... What pressure are your springs open and closed? What they of cam are you going to use them with ? I believe that picture you attached is from someone that used them over their rated value .

Re: Bushing the Comp Cams Pro Magnum Rockers [Re: JohnRR] #1328945 10/31/12 02:18 AM 10/31/12 02:18 AM
Joined: Apr 2004 Posts: 323 Raleigh, NC Meangreen68 OP enthusiast
Meangreen68 OP enthusiast Joined: Apr 2004 Posts: 323 Raleigh, NC	John, I'm not sure of the spring pressures. Engle K60/62 Hyd (.534"/.540") 108 lobe center. Reworked Edelbrock heads. 3.9" stroke quench motor ~10-3/4 to 1 cr. 7442204-Engine25.jpg (70 downloads)

Re: Bushing the Comp Cams Pro Magnum Rockers [Re: Meangreen68] #1328946 10/31/12 02:34 AM 10/31/12 02:34 AM
Joined: Apr 2004 Posts: 323 Raleigh, NC Meangreen68 OP enthusiast
Meangreen68 OP enthusiast Joined: Apr 2004 Posts: 323 Raleigh, NC	The shafts from Hughes Engines look to have more than just "banana" grooves. Maybe this is the ticket? 7442217-Shafts1.jpg (86 downloads)

Re: Bushing the Comp Cams Pro Magnum Rockers [Re: Meangreen68] #1328947 10/31/12 02:45 AM 10/31/12 02:45 AM
Joined: Aug 2003 Posts: 8,716 Baltimore/Denver 64Post master
64Post master Joined: Aug 2003 Posts: 8,716 Baltimore/Denver	You really should find out what spring pressure you're running. Whoever you call is going to ask you. You may be throwing your money away on something you don't need.

Re: Bushing the Comp Cams Pro Magnum Rockers [Re: 64Post] #1328948 10/31/12 02:56 AM 10/31/12 02:56 AM
Joined: Apr 2004 Posts: 323 Raleigh, NC Meangreen68 OP enthusiast
Meangreen68 OP enthusiast Joined: Apr 2004 Posts: 323 Raleigh, NC	You're probably right Dave, it's just bothered me ever since the word "galling" was associated with these rockers.

Re: Bushing the Comp Cams Pro Magnum Rockers [Re: Meangreen68] #1328949 10/31/12 03:12 AM 10/31/12 03:12 AM
Joined: Jan 2003 Posts: 27,468 So Cal autoxcuda Too Many Posts
autoxcuda Too Many Posts Joined: Jan 2003 Posts: 27,468 So Cal	Quote: In another thread about the newer "Ultra Pros" it was mentioned that Comp Cams uses a "narrow rolled Teflon coated bushing." I'm going to call Comp Cams tomorrow to see if they'll supply me the bushings? Can't hurt to ask. Yes. The new one I bought last year have bronze sleeves in them. The centers are open to allow lots of oiling. No need for bananna groves. 7442252-1_20_11Sm03.JPG (70 downloads)

Re: Bushing the Comp Cams Pro Magnum Rockers [Re: Meangreen68] #1328950 10/31/12 03:19 AM 10/31/12 03:19 AM
Joined: Aug 2003 Posts: 8,716 Baltimore/Denver 64Post master
64Post master Joined: Aug 2003 Posts: 8,716 Baltimore/Denver	I ran those rockers with double springs at 350# open and 140# on the seat. Comp claims they're good to 500#. I wouldn't bet my motor on it. Consensus seems to be around 400# max open OOTB. Ultimately, it's your money, your motor, your comfort level.

Re: Bushing the Comp Cams Pro Magnum Rockers [Re: 64Post] #1328951 10/31/12 12:21 PM 10/31/12 12:21 PM
Joined: Apr 2004 Posts: 323 Raleigh, NC Meangreen68 OP enthusiast
Meangreen68 OP enthusiast Joined: Apr 2004 Posts: 323 Raleigh, NC	I spoke with Comp Cams moments ago (800-999-0853). They aren't willing to help. No bushings, a trade-in, or a credit towards the purchase of a new set. They did say if they fail, they'll give me a new set, excluding labor

Re: Bushing the Comp Cams Pro Magnum Rockers [Re: Meangreen68] #1328952 10/31/12 07:15 PM 10/31/12 07:15 PM
Joined: Jan 2003 Posts: 75,020 U.S.S.A. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 75,020 U.S.S.A.	Quote: I spoke with Comp Cams moments ago (800-999-0853). They aren't willing to help. No bushings, a trade-in, or a credit towards the purchase of a new set. They did say if they fail, they'll give me a new set, excluding labor Well if they fail you'll get a bushed set in return. Is your cam a soild Flat tappet , Hyd. flat tappet, solid Roller, or a Hyd. roller ? Should be easy to find the spring specs by looking up your springs on the manufacturer website . Unless you are running a solid roller I don't think you'll have an issue , the picture you posted above was from someone using a solid roller , if solid roller is your cam choice you really want to run a set of Harland Sharps . I feel that hughes shaft you added above has too much critical load area removed , a bananna groove would be better and easy to do with the shafts you have if that are not grooved.

Re: Bushing the Comp Cams Pro Magnum Rockers [Re: autoxcuda] #1328953 10/31/12 07:27 PM 10/31/12 07:27 PM
Joined: Apr 2004 Posts: 323 Raleigh, NC Meangreen68 OP enthusiast
Meangreen68 OP enthusiast Joined: Apr 2004 Posts: 323 Raleigh, NC	Thanks Autoxcuda for that photo of your Ultra Pro rockers. Looking at the rocker in your right hand, that looks like a metal-backed sleeve bushing, sintered bronze and PTFE. Notice the parting line in the bearing. They look these: http://www.asbbearings.com/steel_backed_bearings.html And John, you're probably right about those Hughes shafts. Light banana grooves in my shafts is all I probably need to do. It's a hydraulic cam.

Re: Bushing the Comp Cams Pro Magnum Rockers [Re: Meangreen68] #1328954 10/31/12 08:49 PM 10/31/12 08:49 PM
Joined: Jan 2007 Posts: 7,664 IN A ahy master
ahy master A Joined: Jan 2007 Posts: 7,664 IN	I'm running the 2004 vintage Comp rockers and Comp shafts at about .55 lift. No problems. I believe galling gets to be an issue at around .6 lift and associated spring pressures. Unless you have unusual spring pressures, I believe you will be fine with the rockers as supplied in your application.

Re: Bushing the Comp Cams Pro Magnum Rockers [Re: ahy] #1328955 11/01/12 04:59 PM 11/01/12 04:59 PM
Joined: Apr 2004 Posts: 323 Raleigh, NC Meangreen68 OP enthusiast
Meangreen68 OP enthusiast Joined: Apr 2004 Posts: 323 Raleigh, NC	I spoke with Engle Racing Cams today. The recommended spring pressures of my K60/62H cam would be 130-145 closed and 300-320 open. I read the invoice for the engine build and the original valve springs in the Edelbrock heads were swapped out for 1.560" double springs/cups and chromoly dual spring retainers. I'm going to have the Comp Cams rocker shafts "banana" grooved, add ARP studs to the aluminum hold-downs, and run 'em. Thanks guys 7444722-EngleRacingCams.jpg (51 downloads)

Re: Bushing the Comp Cams Pro Magnum Rockers [Re: Meangreen68] #1328956 11/01/12 05:28 PM 11/01/12 05:28 PM
Joined: Aug 2003 Posts: 8,716 Baltimore/Denver 64Post master
64Post master Joined: Aug 2003 Posts: 8,716 Baltimore/Denver	Quote: I spoke with Engle Racing Cams today. The recommended spring pressures of my K60/62H cam would be 130-145 closed and 300-320 open. I read the invoice for the engine build and the original Edelbrock head's valve springs were swapped out for 1.560" double springs/cups and chromoly dual spring retainers. I'm going to have the Comp Cams rocker shafts "banana" grooved, add ARP studs to the aluminum hold-downs, and run 'em. Thanks guys That�s very close to what I ran. You should be fine.

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