Ok.
So Holden have told me they started to replace them from 120 to 140kpa in 2009.
Does this seem wright as auto one,repco and even Holden dont seem to confident about this when I speak to them.
Bought a new genuine Holden one for my L98 a year or 2 ago and it’s 140 kpa mate the higher the pressure rating means the higher the boiling over point for the coolant for general day to day use I don’t think it would make any difference either way
I ended up getting the 140kpa,but even the guy at Holden that sold it to me said he has a L98 VE SSV and he just checked and he is running a 120 kpa.
Anyway cheers for the replys and guidance on this,appreciated a lot.