I will change the turbo oil pipe on my 4WD and do the same lubrification as the 2WD

so there is a "hole" in the head (upper the manifold)
and I need a 1/8 conical plug to lock it

where can I find this ?

I look on ebay but find nothing (perhaps I use wrong key words)

I appreciate your help

 

You want a 1/8 NPT bung/grub screw.
Pm me your address and I'll pop one in the post to you.
tabetha