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Old 02-20-2013, 01:09 PM
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numbers on end of cam

As I stated in an earlier post I bought a blown 350 sbc from a widow and she knows nothing about the engine so I'm tearing it down. On the cam are these numbers etched into it. B4686, H114+ 4, 5447/296, H-3 and what looks like an E or a back wards 3 to the right middle of the shaft. I've googled these numbers and been to a number of cam maker sites but haven't found anything.

It has hydraulic lifters and of all things 3998993 heads with 1.72 and 1.5 valves! Go figure! Any suggestions on new heads? AFR, Dart, etc.

How does a guy track these numbers down?

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Old 02-20-2013, 01:12 PM
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measure the cam with calipers/mic,see if you really care to track them down?
same for all the parts.If in doubt,toss them out,,,
maybe make a stock engine(worst case scenario) and build a new engine to fit a blown application
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Old 02-20-2013, 01:49 PM
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Looks like a custom grind from Comp Cams

I'm not sure what the B4686 is but the 5447 is a hydraulic Xtreme Energy lobe profile. Duration is 240@.05 with a .507 lift with 1.5 rockers. The 114 must be the lobe centers which makes sense for a blower cam. The +4 must be that it's ground 4 degrees advanced.
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