Calling all gen 3 hemi gurus

replicaracer43 said

In the ones I've torn down, it appears the cam lobe starts to fail BEFORE the lifter, you can see metal flecks coming off the lobes. I believe the camshaft material is to blame, (soft) a new camshaft from chrysler is like 85 dollars, what does that tell ya?

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Tells me the aftermarket parts are over priced!

A new standard induction hardened cast cam core from CMC or other suppliers to a custom cam grinder is pretty cheap... I've heard $15.00. I would imagine the big grinders like COMP, Crane and the OEM's pay far less.

COMP uses the cheapest cores they can get away with... ok for street use but no better than OEM. They buy from the same sources as OEM since there are only three outfits making cores in the US.

Mopar isn't the only one having cam issues... as mentioned before idle time seems to be one of the biggest killers of cams and lifters. The lifters rely on splash lubrication from the crankshaft... not much going on at 600 rpm's.