Need to plug a port on my headers, anybody know what size the port is?

LarsD

Founding Member
Jul 2, 2002
2,680
120
123
Texas
My Cobra has a set of Hooker longtubes on it.

These:

large6229-1HKR.jpg


Holley Performance Products 96-03 Mustang: 4.6L (4 V)*6229-1HKR

I noticed what sounds to be a small exhaust leak when I'm driving it, while poking around the engine bay I saw the two for most primary tubes have some sort of emissions looking port with nothing in them (you can see the bosses in the pic). Since the engine was hot I couldn't poke around in there and see if it goes all the way through, though I assume it does. Anybody know what size the threads are so I can plug them?

Thanks
 
  • Sponsors (?)