Oil Gally Plug Size

[stangman281v8]

Does anyone know what the correct size of the oil gally plug is on a the back side of a PI head (drivers side).

 

[Ninety8stang]

Just take it to the hardware store/local parts store and have them put a thread chaser in it. Shouldnt take but a minute to find out.

 

[Redford]

IF you have the NPI heads available, you can directly swap the galley plugs from those.

But you probably don't since you're asking, just chiming in to be safe.

 

[stangman281v8]

It is 1/8th NPT. The PI Head has a small shoulder where the plug goes so it threw me off at first. Thanks guys! I haven't had a tune on it yet so still waiting to see it's full potential.