02 sensor holes on BBK H pipe

[1985 Motorsport Capri]

so i switched to true duals on an 85.
put a BBK H pipe on with no issues other than the 02 sensor holes.
since its a carbed motor, no need for the sensors.

what is needed to plug the holes?

[mcb82gt]

I just used some hex head brass plugs. Been so many years ago, I don't remember where I got them.

[massacre]

Hardware store should have those plugs

[bwguardian]

I have the BBK x-pipe on my 85...can't remember it's been too many years back, but I know you should be able to find something at the local hardware store...

[KevinVarnes]

Thread should be M18x1.5. If you search for o2 sensor plug you should come up with some results.

https://www.amazon.com/Oxygen-Sensor...08J99GQCQKSXP9

[795.0pacecar]

This is what I used on my BBK long tubes. https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

[emerygt350]

Get yourself an afr gauge and use one of those holes! I love having one in my car. I think it was 140 and included the wide range sensor. Great for trouble shooting, and in your case tuning the carb.

[dynodon64]

Oil pan plug.

[Str8sixfan]

Thread should be M18x1.5. If you search for o2 sensor plug you should come up with some results.

https://www.amazon.com/Oxygen-Sensor...08J99GQCQKSXP9

I assume stock h-pipe would want to obviously have the same thread pitch

[mcb82gt]

I assume stock h-pipe would want to obviously have the same thread pitch

I would assume this as well.

[richpet]

Yup - m18-1.5.

I got two at my local fastner store and cut them down.

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[ponch85rs]

The hex brass plugs always rattled in my car. Made me think a actual plug would need to be tapered like a NPT plug or something