rear disc brake via valves question

[turbo-boy]

I forget what bai valves I was using with my last nova my currant ones are 3/27 on the master cylinder and are in a 1.0 I'm pretty sure these are the correct ones for a rear disc convertion
just want someone to confirm

[sparkie1401]

That sound's abiut right..usually they are 3/30 or 40.....they are hard to find. ...most only early 1 ltr or early cavs etc

I need some of those or ill be selling my axle whixh is all ready and waiting