Convert 12v to 24v

[Vr6 hatchbacker]

Hi guys Ive got a 12valve vr6 golf and just recently got my hands on a 24 valve head would like to know if all the water jackets match up and if it would be same compression and has it been done before

[HaydEn]

Nope, it doesn't work.

[Jmac]

Nup you have to do the whole lot and is a mass of effort.

[Vr6 hatchbacker]

Aww **** haha thanks for the advice