Redneck1465

I have a 98 explorer 5.0 that is going into my 94 mustang and I know I need to drill and tap the lower intake for the coolant sensor. What I would like to know is what size and thread do I need to use to tap this properly. Thanks in advance guys.

KNS1

I pretty sure you need a 3/8 npt tap. when you pick that up it should tell you what size drill bit to use on it.

.boB

Depends on the type of gauge being used. Autometer uses a 1/8" NPT.

ALMOST STOCK

Yes it is 3/8" NPT.. I went with a 9/16" drill bit because it's easier to find and works just as well.
http://www.frentzandsons.com/Hardwar...orpipetaps.htm

KNS1

I based the size on a factory type coolant sensor in the manifold. If your are using something else take it with you to the store and match it up

ALMOST STOCK

And I also base my assumption on the same when I posted ..... Factory Type

Redneck1465

Yeah I just want to use the factory coolant sensor. So its a 3/8 npt? thanks guys I reallly appreciate it.

19stang88

make sure its a fine thread