Engine Primer Fitting Cap Size

[RV8R999]

Anyone know off hand what size cap fitting is needed to block the primer holes in an 0-360? I'm not close to my plane today and have an opportunity to pick up some hardware. I didn't install a primer system so I don't need those lines hanging off the engine.

Thanks!

 

[rv9aviator]

I'm pretty sure mine were 1/8 inch pipe plugs. I used brass plugs in mine.