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Old 10-19-2015, 06:56 PM   #1
hotrodA
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Default Clay Smith cam ID?

Hope that one of you experts can ID this 59AB cam I have
Thanks!
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Old 10-19-2015, 09:04 PM   #2
flatjack9
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Default Re: Clay Smith cam ID?

That's a pretty hefty cam. Good for a large cu in engine. No low end torque so definetly not a good street cam.
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Old 10-19-2015, 10:18 PM   #3
Ol' Ron
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Default Re: Clay Smith cam ID?

The 272 was a good track cam, but the 282 was more of a top end grind. Should sound great tho.
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Old 10-19-2015, 10:56 PM   #4
hotrodA
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Default Re: Clay Smith cam ID?

Thanks!

So it has only three digits, rather than four?

Any specs?
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Old 10-20-2015, 01:46 AM   #5
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Default Re: Clay Smith cam ID?

Yes, it should read 282, its cam lobes have quite a wide flat on the (normally) pointed part of the lobe. Not really a high lift cam, more of a long dwell at full lift cam, quite a high lift rate.
A stout cam, use with high compression heads eg offy 400 (highest off the shelf offy's) 350's would have been good on a small size engine.
Martin.
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Old 10-20-2015, 04:08 AM   #6
Tim Ayers
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Default Re: Clay Smith cam ID?

Clay Smith Cams are not known for being a high lift cam. I have a 272, 282, and a 284 cams in my stash. I think the highest lift of the bunch is somewhere around .350.

Last edited by Tim Ayers; 10-20-2015 at 05:55 AM.
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Old 10-20-2015, 04:57 AM   #7
scooder
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Default Re: Clay Smith cam ID?

High lift and high lift rate are two different things, I agree the Clay Smith cams arnt high lift, but the rate if I recall was correctly was quite high. Sorta gets up quickly, stays full up quite a long period, the closes quickly. I'm sure that's what my notes says? The cam in my notes is actually a 282-2 which had slightly revised exhaust pattern. Again if I recall, my notes arnt with me though.
Martin.
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Old 10-20-2015, 05:56 AM   #8
Tim Ayers
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Default Re: Clay Smith cam ID?

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Originally Posted by scooder View Post
High lift and high lift rate are two different things, I agree the Clay Smith cams arnt high lift, but the rate if I recall was correctly was quite high. Sorta gets up quickly, stays full up quite a long period, the closes quickly. I'm sure that's what my notes says? The cam in my notes is actually a 282-2 which had slightly revised exhaust pattern. Again if I recall, my notes arnt with me though.
Martin.
Gotcha. I guess I've always used the term fast action v. lift rate.

Yes, I think once Clay Smith took over the grinds from Smith-Jones they tweaked the grinds a bit and added the -2. All of my grinds are Clay Smith's so they read 272-2, 284-2, etc.

Curious if anyone is running a 272-2 in there car? It was a popular grind back in the day.

Last edited by Tim Ayers; 10-20-2015 at 08:23 AM.
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Old 10-20-2015, 04:11 PM   #9
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Default Re: Clay Smith cam ID?

So that's what the -2 bit comes from, thanks for that.
From Ron's book, 272-2 rough idle but ran good on the street. Also states can be used in any weight car.
Martin.
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Old 10-20-2015, 05:24 PM   #10
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Default Re: Clay Smith cam ID?

If it has a rough idle, that would definetly adversely effect low end torque and so would not be the best for a heavy car. Probably has tight lobe centers and a lot of overlap.
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Old 10-20-2015, 06:24 PM   #11
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Default Re: Clay Smith cam ID?

Wow! Great factual info. Thanks!

Anybody else care to chime in?
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Old 10-21-2015, 07:55 AM   #12
Tim Ayers
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Default Re: Clay Smith cam ID?

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Originally Posted by scooder View Post
So that's what the -2 bit comes from, thanks for that.
From Ron's book, 272-2 rough idle but ran good on the street. Also states can be used in any weight car.
Martin.
I have the timing card in my stash. I'll post the specs tomorrow.
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Old 10-21-2015, 11:51 AM   #13
hotrodA
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Default Re: Clay Smith cam ID?

Great!
Thank you, Tim.
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Old 10-24-2015, 07:42 PM   #14
hotrodA
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Default Re: Clay Smith cam ID?

Tim, any luck?
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Old 06-21-2020, 12:43 PM   #15
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Default Re: Clay Smith cam ID?

Guys,
I have a Clay Smith cam (M3) for the “60” engine. Anyone have the specs on this M3 cam?
Thanks,
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Old 06-21-2020, 09:46 PM   #16
Ol' Ron
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Default Re: Clay Smith cam ID?

I have a piece of a 272 in a drawer someplace with 3 lobs onit. Came fron a Danbury stockcar from the late 50's. Not much was left of the engine as it blew going into turn 3, leading the race.
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Old 06-21-2020, 09:58 PM   #17
Tim Ayers
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Default Re: Clay Smith cam ID?

Crud. I never posted the specs. I'll find them and post here later.

Can still get Clay Smith cams ground by George and the gang.
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Old 06-21-2020, 10:13 PM   #18
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Default Re: Clay Smith cam ID?

Quote:
Originally Posted by olracer66 View Post
Guys,
I have a Clay Smith cam (M3) for the 60 engine. Anyone have the specs on this M3 cam?
Thanks,
IO-14, IC-60, EO-59, EC-15. 254 duration intake and exhaust, .260 lift.
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Old 06-21-2020, 11:11 PM   #19
Fordestes
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Default Re: Clay Smith cam ID?

Does this cam require radiused lifters?
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Old 06-22-2020, 06:04 AM   #20
Terry,OH
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Default Re: Clay Smith cam ID?

You can still get cam info from Clay Smith Cams check them out on the web.
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