Quote:
Originally Posted by nolongerracing
Nitride cast cam. 200/400 spring pressures. The most common issue. Tool steel or Shubeck lifters. Didn't matter. Oil, didn't matter. I was told by a cam salesman that if you got a year out of a cam like this you were "doing good". Thats why we switched to steel cams. The problem continues.
Going back to "pure stock" rules will not help. Just lost a few lobes in a stock rebuild 350 Chevy. We did everything we could for break in. Oil, additive, 1.2 rockers, 1/2 hour run time, etc, etc,. Cores are junk, lifters are junk, oil is junk, heat treat is junk.
Hate to say it.. Seems to start with the EPA!! We can't build what we need!!
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If the EPA is the problem than making the parts outside the USA would fix it.
How many vehicles today run OHC on bucket setups? Which is nothing more then the cam against a flat tappet
Stan