[shaker455]

Keep cutting open your filters and watch the oil pressure closely

[Superduty65]

This fall I got my 455 running and only got about 150 miles from it before the cam went bad. The 2 lobes that went bad, went so quickly that it wiped out my bearings, all of them. Some bearings had grooves worn in them a little less than 1/16" X 1/16" all the way around. I first thought I had a problem when I noticed the intake rocker on the #8 and #3 piston would not stay adjusted and I had bearing pieces about the size you are speaking of in my oil filter both times I changed it after the break in. Some other pieces were more like the size and shape of the ball from a ball point pen maybe a little smaller. Those two lobes were ground completely gone and the lifter was concave and grinding on the shaft of the cam. Just watch very closely what the oil is telling you and check the rockers for noise and adjustment often. I don't think you can change the oil too much. My oil pressure was very erratic as well. sometimes below 15 psi and sometimes above 80 psi. Watch for things you feel are abnornal, if you notice something you don't feel is right then post it and these great PY guys will help you narrow it down if it is an issue. Good luck and keep us posted.

[Rx:GTO daily]

How common is it that a cam (even a new 1 like SD65 describes) dissolves like this?? 150 miles in!!?? Can you sue, "kill", or banish to he!! the company that sells such a "high" quality part?? Friend is rebuilding his motor currently, he found he lost a lobe and concaved a lifter as described, but had more mileage on his, maybe 10K. Still seems unacceptable. His was a reground, so I find his predicament a lil less shocking, but was still a Crane or Comp, I forget...seemed bad to me. I have often heard of soft cams, but just how prevailant is this?? How can a company that makes such a critical part allow such garbage to reach the customer? I'm guessing this may be sounding niave to the guys that do alot of engine work, but since I suspect I'll be doing a rebuild in the not too distant future, is there anyway to avoid this?? Or, no matter what you buy/spend can you run into this situation?? I appreciate your input!!