- Joined
- Dec 2, 2012
- Messages
- 895
dynodave said:Last time I asked....(some years ago) Les Emery still sold his norvil cams which are steel not iron.
I have his 2S on a domi core, 7S domi core, 4S and 7S for late commando They were all tested for hardness.
I guess it's been a while...they were only about $150 back then. :mrgreen:
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These cams are made of steel then nitride harden (see Norvil website) this process leaves only a very shallow outer surface of hardness which has been reported on many occasions to fail.
As with iron cams the type of oil used an manner of using the engine seem as important as the cam manufacturing methods.