So I'm doing my pi swap on my 98 and as I pull the driver side cam out, to find the cam very scorn on 3 of the journals. So I went back and double checked the passenger side to find light scoring on 1 journal. Now this is an indicator of low oil pressure is there something common on these engines that can cause low oil preasure? When I drained the coolant it looked like it had oil contamination and the oil looked like chcolate milk. Now I didn't see any signs of a blown head gasket witch brings me to my next question is there a common point where oil and coolant could get mixed besides a blow head gasket?