Gear Hardness, as many will know, is 58-62 Rockwell "C".
It doesnt get any better than that, I suspect.
Sounds like a great project. Too much suspect stuff is coming from India and
Taiwan.
Joe (A)
> There are a few of us (R. Young, C. Gee and myself) on this list that have
> been working on this lifter project for some time. Our resident mettalurgist
> has specified the material needed and surprisingly the machine shop
> independantly specified the same as well. I can say that our lifter project
> is nearly completed. They are being manufactured in the USA as we speak.
> These lifters are being made from billet tool steel and will have a Rockwell
> of C60 and include a measured face radius. Other lifters are not RELIABLY
> this hard -typically about c55-57 or so. Arguably, this level of less than
> reliable hardness has been an issue for our cars.
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