I'm trying to finish the plumbing for the Duratec and want to use a hard pipe from the rear housing to the radiator.

Would 32mm OD (29mm ID) pipe be enough or should I use something bigger?

I'm not sure of using stainless pipe (galvanic corrosion?)...

Thank you very much!!

Used 32mm (IIRC) aluminium tube (beaded) from CBS - works nicely:

http://viatron.websitetoolbox.com/file?id=1117198

You can request longer lengths etc:

http://www.cbsonline.co.uk/product/32mm_Beaded_Aluminium_Hose_Joiner_BEAD32

I can double check the tube thickness tonight.

I can do beaded aluminium 32mm tube, any length you want, be very surprised if I'm dearer than CBS, but their website doesn't appear to be working at the mo to check.