eco tec v6 oil water problems

[1SIKR8]

definitely head gasket mate or if he has worked on it possibly didn't get the heads machined before he put them back on.

if he didn't machine the heads ( they shouldn't really warp, there cast not alloy ) but if he didn't i'd be doing a compression test, cause if the heads are not sitting right your guarenteed to have compression getting around the gasket one way or another