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-   -   Smog plug for back of 351w heads???? Who has them? (http://www.clubcobra.com/forums/all-cobra-talk/109294-smog-plug-back-351w-heads-who-has-them.html)

nymathboy 02-22-2011 12:05 PM

Smog plug for back of 351w heads???? Who has them?
 
I have 84 351w with stock heads. On the back of the heads there is a hole about the size of a dime where the EGR cross over tube goes.

I need to plug these two holes. How do I do it? Is there anyone who sells a plug for them?

lovehamr 02-22-2011 12:22 PM

This thread on FTE should clear that info up;
http://www.ford-trucks.com/forums/16...s-on-351w.html

nymathboy 02-22-2011 12:31 PM

Thanks. Love your Avatar

nymathboy 02-22-2011 12:40 PM

I called up the Ford Dealer today and for that part number they want $20. I little on the high side for a couple of bolts to block a passage way.

Jerry Clayton 02-22-2011 01:13 PM

isn't it like a 5/8 thread and the plug from ford has an internal 3/8 or 7/16 thread????If you aren't using smog system components you can plug it with a short bolt or tap it for NPT plug

nymathboy 02-22-2011 01:30 PM

Not sure about the threads. I found a local shop that sells them. I will pick them up in the morning. I will let you guys know how they work out.

I think they will be a lot cheaper too.

michel schryer 02-22-2011 04:48 PM

I plugged mine with grade 8 bolts and silicone,i beleive it's a NC threads and it works fine.


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