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Old 06-29-2020, 04:18 PM   #1
Ol' Ron
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Default Up DateClay Smith Mistery cam

I don't like to give wrong information. Going into the dark arkives of my old documents. I found some specs for the Clat Smith 272 cam and the other readers were right, lift was .325,
Going to the Smith Jones cams I found a cam 270 with .375 intake 312 exhaust
I brought out the rear part of what I thought was a Clay Smith cal and it measired .384 Int and .380 ex.
Im not sure where thid cam came from as I sold it in 58 to Elmer Roy for the 74 which was running at Danbury. I now understand why it ran so good.
Unfortunately, I was wrong about the origin of the cam, wish I knew what ti was.
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Old 07-06-2020, 08:10 PM   #2
Bob/Ohio
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Default Re: Up DateClay Smith Mistery cam

Here are the specs. for a Clay Smith C-284-R that I had them regrind on my original Merc cam.


INT. OPEN 30 / EXH. OPEN 74


INT. CLOSE 74 / EXH. CLOSE 30


LIFT 355


DURATION @ 0.050 252


Posted these just in case someone needs to know the specs.


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Old 07-07-2020, 06:57 AM   #3
Ol' Ron
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Default Re: Up DateClay Smith Mistery cam

Thanks,Some day I might try and get the duration from this broken piece. However the lift is still an Issue, with both lobes over .380" doesn't sound like a Clay Smith ca.
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Old 07-07-2020, 12:28 PM   #4
Tim Ayers
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Default Re: Up DateClay Smith Mistery cam

Ron:

Does this change your recommendation of the Clay Smith 272-2 in your book?

Tim
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Old 07-08-2020, 06:56 AM   #5
Ol' Ron
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Default Re: Up DateClay Smith Mistery cam

I based my recommendations on the performance of this cam, which I thought was a Clay Smith 272-2. At least thaT was what was stamped on the cam. Now I have no reason to believe that it wasn't the same cam Roy used in the car. That was over 60 years ago and I wanted to use the cam Myself, but wasn't racing at the time.
However the car preformed very well with this cam, what ever it was. Still a mystery
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Old 07-08-2020, 07:29 AM   #6
Tim Ayers
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Default Re: Up DateClay Smith Mistery cam

Quote:
Originally Posted by Ol' Ron View Post
I based my recommendations on the performance of this cam, which I thought was a Clay Smith 272-2. At least thaT was what was stamped on the cam. Now I have no reason to believe that it wasn't the same cam Roy used in the car. That was over 60 years ago and I wanted to use the cam Myself, but wasn't racing at the time.
However the car preformed very well with this cam, what ever it was. Still a mystery
Haha. OK, sounds good, Ron. Hopefully you’ll be able to put the clues together to figure it out.
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