Re: Metal debris in engine oil filter
The rattle you are hearing could be something much worse - what you are describing sounds like a rod knock, which means you would need a new shortblock.
When you replaced the cam did you at a minimum replace the lifters and clean out the oilpan? If not, then your new cam is probably ruined too, as well as the shortblock. You might get away with a wiped cam once, but it sounds like this one is a lot worse and has caused some more damage.
11 Silverado - No times yet.
99Z28 - email@example.com. 403 L76/L92 with street tires and launching with the traction control.