Check this out u guys..... I've had an overheating problem with my ls for the longest, I replaced everything in cooling with honda oem parts, and car still overheated...ne ways took it to a shop and they told me head gasket and were gonna charge me 550 to do it. So I said no and I would do it myself. I know how to do it u noe.........so I pulled head off and head gasket was perfect! No cracks, flakes or wear.....but ne ways I'm replacing but when I looked on the block walls I had build up of dirt/mud...it was a significant amount. Could that have caused a blockage? I noe where it came from, I didn't have an intake or filther for about a month and I constantly drove to cali/nevada stateline and back to vegas ( a lot of dirt in air due to dessert)

 

Oh but I did have oil in my cylinders, significan amount, but no coolant. So hg could have been bad but only oil was leaking could that have still caused me to overheat?