[joe 5.0]

ok i know its one or the other but would like to know what you think i realy dont want to dig in again

just finished building this car

car running fine no smoke out exhaust avg about 200 degrees in trafic and 180 on he highway plugs look good

but coolant in oil noticed oil was milky when i went to change it and coolant came out coolant level low but no visable leeks

car is blown and pulls over 500 hp at rear

drove it home from dyno and car ran great put it away for a couple of weeks decided to change oil when i found the above.

[Iownastang]

Originally Posted by joe 5.0 ok i know its one or the other but would like to know what you think i realy dont want to dig in again just finished building this car car running fine no smoke out exhaust avg about 200 degrees in trafic and 180 on he highway plugs look good but coolant in oil noticed oil was milky when i went to change it and coolant came out coolant level low but no visable leeks car is blown and pulls over 500 hp at rear drove it home from dyno and car ran great put it away for a couple of weeks decided to change oil when i found the above.

head gasket or a crack internally.

[ryans88gt]

Head gasket. try felpro 9333pt1 gaskets. They are boost friendly and seal the coolant passages really well. It is possible that the intake gaskets are leaking coolant into the lifter valley, but if that is the case, most likely it is because boost is pressurizing the coolant via a blown head gasket. Either way I would at least take the heads off and inspect.