You'd probably be best off asking at your local automotive supply centre - whatever the WA equivalent of Bursons is... if not Ripco may be able to help you out.
when i did mine on my VQ i just got a few boxes of assorted sizes and they come in imperial and metric sizes. i think they were metric that ended being the size but not sure as i got both, also i did my fuel rail too so it was all new and sealed in that whole section. hope that all makes sense:thumbsup:
