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914World.com _ 914World Garage _ Smog holes

Posted by: glens67 Feb 20 2012, 05:41 PM

I'm pullling the Smog on a 75 2.0. what should I use to plug the holes in the head.
Im in Idaho and dont need the Smog stuff. The 2.0 is going in a 1973.
This is an almost complete smog set up. Is it worth any thing?
Thanks
Glen

Posted by: SLITS Feb 20 2012, 05:48 PM

3/8" pipe cap (AFAIR) on the outlets (cheap ACE Hardware or Lowe's or Home Depot). I ran 5000 miles this way.

or

a threaded bolt, but I don't remember the size or thread pitch ... just match the air injection tube thread.

Best method is to have them sealed (heliarced) from inside the port.

Posted by: Krieger Feb 20 2012, 10:20 PM

It has been a while, but I think it was performance/automotion that had plugs that were for the air injection ports for 911 heads that were the same except that there were six in the pack

Posted by: jsconst Feb 20 2012, 10:35 PM

Just asked McMark the same question when I was at his shop yesterday....his answer 10 X 1.00 plugs, mcmaster.com

Jeff

Posted by: glens67 Feb 20 2012, 10:49 PM

Thanks
any body need smog this stuff?