Scottie when does it smoke? First start up? After a long hot idle, pulling away from a red light? I reckon changing the valve guide seals is more work that doing a head gasket.

The work involve in doing the TB change does nothing to help with changing the valve guide seals. The cams don't need to come out of that engine <img src="/forums/images/graemlins/kewl.gif" alt="" />

'97 Montero 'LSR' - 4.6 gears & factory rear locker, 33" Procomp muds on 15x8 steelies, 50mm coil spacers, T-bar crank, Airlift, sans rear sway, 50mm rear frame & fuel tank lift, Aisins, ARB front bumper + 10k lb winch, 50mm DIY body lift, rock sliders, cut rear quarter panels...