Originally Posted by LDadrenaline

i dont think the headgasket is the problem, i see no signs of leakage anywhere on the engine. most likely will end up replacing the thermostat, getting a crawford water pump, external oil cooler, and replacing a section of the bottom radiator hose with solid pipe (dont know if i posted it before, but a subaru race team found their water pump cavitating under high load and collapsing the hose. fixed it by replacing a 3" section in the bottom hose with solid metal piping).