Thread sizes on oil cooler pipes

[gkm24]

Subsequent to my recent posts, do any of you clever people know what size threads are on the oil cooler connections which are on the early V8 engines fitted into the early Range Rovers ie not Serpentine engines which have a different fitting? I have found someone who keeps the fittings but I need to know the size so that I can order them. I will look in a manual but they are not known for giving sizes etc. Thanks for any help.