[dalewrc30]

I'm not a metals expert but my toolmaker buddy,Dave, has almost 50 years experience and he regards it as the best low carbon steel for this application.
The case depth is achieved through an extended treatment,done at this countrys major heat treatment company, and we have measured it at 1mm,hardness is around 64 Rockwell.

I asked about nitriding to try and reduce cost,only one grinding sequence instead of two, however my buddy is not keen on it.Even though hardness of around 70 Rockwell is achieved,the actual depth is measured in microns.If you were to lose even .001" it will be through the hardening.

He would prefer to make something that is bulletproof rather than risk having a failure due to having a piece of debris go through the oil system.If these cams were to suffer damage to their contact surfaces,they could easily be reground.

Dave has thousands of masters available ,the beauty of bucket and shim is theres no rocker ratio involved so theres probably something to match whatever was required.
I've chosen the Cosworth profile as its similar to the Moriwaki stage 2 and has slightly smoother acceleration figures according to Daves CamPro and is a good allround profile.

Dale