HoldenGemini.net Forums :

In the process of getting the G161Z rebuilt and came across a crack in one of the exhaust outlets on the head. Which means I'm unable to do any porting.

Wondering if anyone has a head available or if it is possible to use a head from a G180 or such.

I have a spare head that was on my old G161 that had crapped rings.

head is in good nick. has stock cam, etc. It was crack tested 4 months prior to the engine being replaced with a rebuilt one as I blew a headgasket.

So head has no cracks. Would just need a skim. PM if keen.