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Comp Cams Pro Magnum 440 Steel Rockers ??
#559763
12/22/09 03:01 AM
12/22/09 03:01 AM
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Joined: Mar 2008
Posts: 100
Wisconsin USA
Albert Lee
OP
member
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OP
member
Joined: Mar 2008
Posts: 100
Wisconsin USA
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Has anyone used the subject rockers on a 500 Hp drag race 440 with a .590" lift, solid lifter cam. This is in a 11 second B body with 440 Source heads and a 727 automatic.
Thanks in advance for your comments!
Last edited by Albert Lee; 12/22/09 03:15 AM.
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Re: Comp Cams Pro Magnum 440 Steel Rockers ??
[Re: tboomer]
#559765
12/22/09 03:22 AM
12/22/09 03:22 AM
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Joined: Jan 2007
Posts: 1,668
Mi,U.S.A.
mike s
top fuel
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top fuel
Joined: Jan 2007
Posts: 1,668
Mi,U.S.A.
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I believe the rockers are only rated for 350 LB or less open spring pressures.
Leave the gun.......take the Cannoli's....Mike
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Re: Comp Cams Pro Magnum 440 Steel Rockers ??
[Re: Albert Lee]
#559767
12/22/09 12:10 PM
12/22/09 12:10 PM
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Joined: Feb 2007
Posts: 5,080
organ
maximum entropy
master
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master
Joined: Feb 2007
Posts: 5,080
organ
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iirc comp say they are good to ~ 400 pounds. they can be bushed to increase load capacity, as the problem with them at high pressure has been galling of the shaft.
for what is the good life if not doing things thoughtfully?
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Re: Comp Cams Pro Magnum 440 Steel Rockers ??
[Re: maximum entropy]
#559768
12/22/09 01:03 PM
12/22/09 01:03 PM
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Joined: Apr 2007
Posts: 289
Lowes
steve660
enthusiast
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enthusiast
Joined: Apr 2007
Posts: 289
Lowes
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Ive ran a set for 4 years and about 5000 miles with at least 400 passes with them. There not "recommended" for spring pressure over 350 ish, but Ive ran over 600 lb springs with a 640 lift roller cam. Yes the shafts do show some galling but besides that they've held up pretty good.
PSO headed 632 from MM. Cracked cylinder, loose valve seats, low oil pressure, low cylinder pressure.
..... Now its a door stop....
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