Andover Norton 850 Camshafts

I am currently running an SS cam in my ‘74 850. I am considering replacing this cam with a stock 850 cam from Andover Norton.

I heard of the alleged issues with PW 3 cams and am wondering if there are any known issues with stock camshaft from Andover.

I just had the SS cam serviced by American Custom Cams if anyone is interested

I know @comnoz may recommend a Web Cam. Is there a reason to go with the bone stock AN cam?

swooshdave said:

I know @comnoz may recommend a Web Cam. Is there a reason to go with the bone stock AN cam?

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Besides the price (a Web Cam camshaft is double the price of Andover Norton camshaft) there is nothing wrong with a 'bone stock' AN camshaft for road use.

real norton factory original EN32B steel cams 06-1084 called 1S and are not AN
EN32B low carbon, case hardened to rockwell C as below
commando3new NOS-52,
commando2new NOS-58,
commando1 good used -58,
commando4 good used-60,
Real norton factory called 2S, 06-3536 NOT SS, case hardened to rockwell C as below
combatX-27,
combatB-31,
combat-36,

originally know as SS pn 22729, 1962 88SS, 650SS and later 750 Atlas grind thru 1970 20M3 commando on twin chain core,
Will not fit 71+ commando

CHILLED IRON single chain cam cores
know of a few PW3 incidents of break off at threads
Mick Hemmings chilled iron PW3-27RC

I know personally of split ignition taper on a claimed 06-1084 was not EN32B but AN chilled iron
some people may have success with CI...
But I would not use one even if free...

Oh, boy. Almost afraid to ask, but are we saying that it is better to source an original cam than to buy a replacement?

rvich said:

Oh, boy. Almost afraid to ask, but are we saying that it is better to source an original cam than to buy a replacement?

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I agree with Dave, I wouldn't use an iron cam if it was free.

Which ones were iron?

Or maybe more importantly, how do "we" tell the difference if we should want to source a used cam?

Iron cams have DNC cast into them.

I would avoid a used cam unless it came with the followers -in order.