headgasket question

[gsxitement]

how much boost/h.p. can the factory headgasket take? i need to get my car on the road very badly, i had a cometic, with only 140 miles but i know once it's crushed thats it. any info would be greatly appreciated.

 

[SpoolnTsi]

The stock headgasket has been proven to handle in upwards of atleast 400hp easily

 

[blue1]

I fell for the trap of using a 4G63 N/T gasket because my supplier didnt know there was a difference. On the n/t gasket there is no metal shim part on the gasket between cyl's 2 and 3, and the gasket was only $26 aus. after blowing two of them at 15psi, i bought a genuine from mitsubishi which was $189 and with ARP studs i have run 24psi and no problems yet.