Did some flatness checking on the head. Looks to be .003 out in the area of the HG leak. The HG (Felpro) did not fail and was an MLS type. .003 seems inconsequential but it's the only thing that explains the coolant leak into middle cylinder.

Does anyone know how much I can shave off this head? Not sure if it will produce other problems if only one head is done?? Fit for intake manifold? Anyone done this before?

Shop machines the head, does not sand.

Thanks.

92 Montero LS 3.0L V6 Auto, Stock, Original owner, 185,800K miles