I think my head gasket is going -time for forged internals?

[SH30RB]

So a few weeks ago, I had my car sitting at idle (letting it warm up) while still talking to a few members at a meet before leaving.
Another member noticed my car's temperature was slowly rising.
By the time I got in the car to drive off, the needle was almost at the top before the "danger zone"
After a minute of driving, the needle went down at a steady pace and my engine went back to ideal temperature

Is my head gasket possibly on its way out?

Now, for part B of the thread.
If it is on the way out, while the engine is out and pulled apart I may aswell spend the extra $$ and go forged internals.
I was thinking pistons, rods, head studs. I don't want to go all out on a crazy build with sleeve work and what not... Just the basics that could support a nice bi turbo set up of two disco potato's, ID1000'a, 320lph fuel pump (might be too big?), custom exhaust to suit. I already have an upgraded clutch to handle extra power (a bit over 200atwkw)

Just after people's opinions

[BillyCorgi]

Are or were your car's cooling fans working properly?

EZ30 engines do not have the endemic head gasket issues that the EJ25 engines had with overheating.

[SH30RB]

Are or were your car's cooling fans working properly?

Yeah, I heard them kick over and running, but the needle was still increasing

[dr20t]

Check your thermostat Simon

And the forged engine will still cost you a bit to do properly even without sleeves. I would suggest you speak direct to PMS (robin) or serge in QLD. Or if you like I know the guy in Windsor that most performance workshops send their shit to for a premium - one of the only blokes left that knows what he is doing.

For the extra 2.5k I would sleeve and be done with it knowing it will take more power/ torque

[SH30RB]

For the extra 2.5k I would sleeve and be done with it knowing it will take more power/ torque

That's definitely food for thought Mick, I have read a few horror stories with sleeving but I guess that comes down to someone who knows what they are doing

[Boostaddict]

Do it.

Forged and sleeved with a big single or 2 disco's with 10-12psi each on pump and have 400 kw atw and lots of SKIDS!!

[alexeiwoody]

Any updates on this? Coolant leak/air lock? White smoke while idling?

[SH30RB]

Any updates on this? Coolant leak/air lock? White smoke while idling?

Not at the moment, I won't get to have a look at the car until next weekend.

I'm over in Perth for the next few months for work, but thought I would post up this thread just to see what people might think it is