OVERKILL
$100 Site Donor 2021
How do you know cam metallurgy is very questionable? How do you know it's not something else like a lubrication issue or a lifter issue?
In my career I've had many clients think there was a problem with metallurgy in their product, only to find the metallurgy was okay, and the problem was their design or something else.
I've also been involved with cam design in my career.
Given your experience, what do you think the limitations of a SADI core are in terms of aggressiveness? When I had my custom cam ground for my 302 the grinder only used billet blanks because of the ramps and RPM range anticipated. He felt SADI cores flexed too much and weren't sufficient to handle things.
I ask because the HEMI cams aren't exactly tame. GM is using billet cores and while they are having the same lifter failure issue, the cams don't seem to be having the same problems.