RB30 spark plug thread insert - any ideas????

[fazersix]

Maybe ring a head reconditioner or talk to a retailer that supplies helicoil kits.

Thanks mudnut, I have spent hours trawling the nett, phoning head recon places.
My email to Time -sert in the US was answered and they thought the Helicoil - save a thread inserts were 16.7mm
More searching and I found ProThread kits made by Bordo. I emailed their Oz office and they confirmed the od is 16.7mm

Fingers crossed have ordered them
Cheers