Engine Oil Cooler Lines- Minimum Size?

[works 510]

Hey,

Just sorting out a oil cooler for a project but am wondering what would the minimum size be?

Would a -8 AN fitting be suitable, or would a -10 be minimum?

I welcome all suggestions and idea's, but would rather get decent info rather than "-10 coz its bigger, so must be better"

Thanks!

[kitto]

If its for your engine -10 minium no iffs or buts.

[dori34]

i've used -8 before and didnt notice anything different or any issues,

but i've sold that kit and my new kit is all -10 lines.

[Greekos]

trust oil coolers use #10 lines im pretty sure all the jap oil coolers do, i wouldn't use #8 as stated above,

[STATUS]

-10 no smaller