What bolts for smog pump holes on back of heads

[RabbidV8]

I am deleting my smog pump and am having trouble plugging the holes on teh back of the heads. What sive and thread pitch is needed to plug those hole?
thanks

 

[Daggar]

Not sure what the numbers are but it's the same thread as a stock spark plug. Take one with you the 'bolt store' and match your spark plug threads.

 

[bullitstang1313]

I think I used some 5/8 - 11 plugs on mine.

 

[ShortThrow50]

http://store.summitracing.com/partdetail.asp?part=TFS-51400265

 

[85_SS_302_Coupe]

I did what Daggar suggested....only i used the fitting off the end of that tube that bolts to the head and matched it up with a bolt at the hardware store.

 

[RabbidV8]

Thanks guys!