Oil Pressure sender size

[sun.stance]

Hey guys, quick question, what size is the fitting that screws into the back of the intake for the oil pressure sender on a small block? it started leaking and I just need to throw a bolt in there to get the car home. Thanks!

 

[ted s]

its pipe thread

 

[moparlee]

Takes a 1/8" pipe plug.

 

[sun.stance]

Thread and pitch?

 

[70chall440]

1/8 npt

 

[moparleo]

Probably just as easy to get a new switch at an auto parts store than getting a plug from a hardware store.