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Roller cam ID #1697610
11/11/14 08:33 PM 11/11/14 08:33 PM
Joined: Jul 2005
Posts: 65
Huntsville, AL
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venom107 Offline OP
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venom107  Offline OP
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Huntsville, AL
I've got a solid roller cam I pulled out of a 470 I picked up a couple of months ago. I am not going roller, but I am trying to identify what it is. The markings on the end are as follows: 311/311 R8 24-24 J100b

Base measured to the best of my ability 1.02, measured lift 1.464, when you do the math, .666 at 1.5.

Any help would be greatly appreciated.
Re: Roller cam ID [Re: venom107] #1697611
11/12/14 12:20 PM 11/12/14 12:20 PM
Joined: Jul 2005
Posts: 65
Huntsville, AL
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venom107 Offline OP
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venom107  Offline OP
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Huntsville, AL
anyone have any ideas?
Re: Roller cam ID [Re: venom107] #1697612
11/12/14 03:37 PM 11/12/14 03:37 PM
Joined: May 2005
Posts: 2,013
Apollo, PA.
B1MAXX Online content
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B1MAXX  Online Content
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Joined: May 2005
Posts: 2,013
Apollo, PA.
311 INT/ EX DURATION 108 LOBE CENTER .424 LOBE My guess

Re: Roller cam ID [Re: B1MAXX] #1697613
11/17/14 04:46 PM 11/17/14 04:46 PM
Joined: Jul 2005
Posts: 65
Huntsville, AL
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venom107 Offline OP
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Huntsville, AL
Well, I guess the time has come to order a degree wheel and figure out exactly what this cam is.
Re: Roller cam ID [Re: venom107] #1697614
11/18/14 11:58 AM 11/18/14 11:58 AM
Joined: Jan 2011
Posts: 137
Daytona Beach, FL
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cknight Offline
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cknight  Offline
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Joined: Jan 2011
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Daytona Beach, FL
I believe this is a very old Cam Dynamics single pattern roller camshaft. The #24 profile is 282 degrees at .050" tappet lift, with .454" lobe lift. A lobe separation of 108 degrees is indicated. This would have been ground in the early 1970's. Is it a single bolt camshaft? Is it carburized steel billet (copper between the lobes), or an Endural cast steel core? Recommended valve lash is .030" on both intake and exhaust at operating temperature. Regards, Chase

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