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Old 05-12-2013, 01:18 PM
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Help with cam numbers

Pulled the cam out of my 350 chevy today to see what I have. I needed to replace the timing cover gasket and in the process of installing a new intake so now was the time. The stampings on the back are SR 3444 and under that is numbers 11 43-02. Any ideas what it is? SR..Summit Racing?

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Old 05-12-2013, 02:10 PM
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www.cranecams.com/uploads/catalog/2011-master-catalog-v2.pdf
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Old 05-12-2013, 03:16 PM
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I appreciate the website given but came up empty. It is a mechanical cam.
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Old 05-13-2013, 09:16 AM
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The 3444 camshaft for SBC that Crane has produced for various customers is a hydraulic grind, not mechanical. Duration at .050" is 234 degrees intake, 344 degrees exhaust. Lobe lift is .325" intake, .340" exhaust. Gross valve lift is .488" intake, .510" exhaust. Lobe separation is 114 degrees. If you were to try to run mechanical lifters in it, a hot valve lash of .006 - .008" would be advised. Regards, Chase
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Old 05-13-2013, 10:00 AM
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Not to highjack the thread but having problems ID'ing this cam. Numbers are:
B4686, 5447 129 H34, H11464 and either a 3 or backwards E, kind of a squikly thing.
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Old 05-13-2013, 11:17 AM
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Don't recognize the numbers. What engine is this for? Flat tappet or roller cam? Regards, Chase
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Old 05-13-2013, 11:43 AM
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Quote:
Originally Posted by Chase Knight View Post
Don't recognize the numbers. What engine is this for? Flat tappet or roller cam? Regards, Chase
It's in a blown (6-71) sbc 350 that I came across. Hyd lifters, stamped? roller rockers. Sent the numbers to a lot of cam companys and everyone of them says it's not their's. Will be a while before I do the indexing, lift etc before I tear it down. Just wondered what I have.
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Old 05-13-2013, 11:52 AM
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B4686 was a Crane serial number for a flat tappet camshaft for a MoPar 273-360 V8 that was ground in 1968., so we can rule that out. Thanks, Chase
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Old 05-13-2013, 12:25 PM
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Originally Posted by Chase Knight View Post
B4686 was a Crane serial number for a flat tappet camshaft for a MoPar 273-360 V8 that was ground in 1968., so we can rule that out. Thanks, Chase
Appreciate your efforts. I'll run the nunbers on it before I tear the engine down for rebuild.
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Old 05-13-2013, 02:36 PM
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Quote:
Originally Posted by danzigs View Post
Pulled the cam out of my 350 chevy today to see what I have. I needed to replace the timing cover gasket and in the process of installing a new intake so now was the time. The stampings on the back are SR 3444 and under that is numbers 11 43-02. Any ideas what it is? SR..Summit Racing?
Are you finding those numbers on the front of the cam? If not, what's listed on the front?
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Old 05-13-2013, 02:54 PM
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Are you finding those numbers on the front of the cam? If not, what's listed on the front?
Haven't went that deep into the motor yet. Will try to get to that asap. Didn't know they had markings on the front of the cam also.
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Old 05-14-2013, 03:32 AM
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Im glad I tore into this now. Was told it was a solid lift and it does have hydraulic lifters after looking again. The cam is back in with assembly lube on it and on the lifters. Dont know if I needed to do that but figured it couldnt hurt. Did I need to soak the lifters in oil or pump them up? They sat wear surface down on the work bench and turned them over to look at the wear surface. There was some oil left on the bench. Did they lose the oil and need to be primed?
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Old 05-14-2013, 03:37 AM
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only number on the front of the cam is a number 7 stamped on it.
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