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SB Mickey Thompson Valve Cover Grommets/Breather #1542903 12/02/13 08:33 PM 12/02/13 08:33 PM
Joined: Jun 2009 Posts: 171 Indy M moparman89 OP member
moparman89 OP member M Joined: Jun 2009 Posts: 171 Indy	I'm in need of a source for grommets and breathers for these valve covers. They have 1.50" holes and I cant seem to find anything that'll fit. School of Automotive Machinists Racing

Re: SB Mickey Thompson Valve Cover Grommets/Breather [Re: moparman89] #1542904 12/02/13 09:14 PM 12/02/13 09:14 PM
Joined: Feb 2005 Posts: 28,312 Cincinnati, Ohio Challenger 1 Too Many Posts
Challenger 1 Too Many Posts Joined: Feb 2005 Posts: 28,312 Cincinnati, Ohio	All the online folks have them, checkout this page. web page I bet almost all decent auto parts houses can get you a grommet kit for a Mopar. Like you said, you need a 1.5" hole for the breather and a 1.00" hole for the PCV valve.

Re: SB Mickey Thompson Valve Cover Grommets/Breather [Re: Challenger 1] #1542905 12/02/13 09:54 PM 12/02/13 09:54 PM
Joined: Jun 2009 Posts: 171 Indy M moparman89 OP member
moparman89 OP member M Joined: Jun 2009 Posts: 171 Indy	Yeah Google is great. 1.5 is not a common size, click on some of the links you posted, most are 1.22OD. There is one mopar "kit" I found which includes three plugs, only one of which will fit. School of Automotive Machinists Racing

Re: SB Mickey Thompson Valve Cover Grommets/Breather [Re: moparman89] #1542906 12/02/13 10:39 PM 12/02/13 10:39 PM
Joined: Feb 2005 Posts: 28,312 Cincinnati, Ohio Challenger 1 Too Many Posts
Challenger 1 Too Many Posts Joined: Feb 2005 Posts: 28,312 Cincinnati, Ohio	I still think they will fill. I just checked a MT cover I have here and the holes measures 1.410" and I just had the grommet in it the breather is very tight. I bet you 1.5" is going to be OK? Unless you already tried it, then your screwed and must weld up the cover and redill if your handy with that kind of thing. Otherwise get another valve cover unless ford or chevy uses 1.5?

Re: SB Mickey Thompson Valve Cover Grommets/Breather [Re: Challenger 1] #1542907 12/03/13 11:25 PM 12/03/13 11:25 PM
Joined: Jun 2009 Posts: 171 Indy M moparman89 OP member
moparman89 OP member M Joined: Jun 2009 Posts: 171 Indy	What is the OD of the grommet you tried in the 1.410 hole? School of Automotive Machinists Racing

Re: SB Mickey Thompson Valve Cover Grommets/Breather [Re: moparman89] #1542908 12/04/13 08:51 AM 12/04/13 08:51 AM
Joined: Feb 2005 Posts: 28,312 Cincinnati, Ohio Challenger 1 Too Many Posts
Challenger 1 Too Many Posts Joined: Feb 2005 Posts: 28,312 Cincinnati, Ohio	Quote: What is the OD of the grommet you tried in the 1.410 hole? I don't have it handy to measure right now, but it came out of a stock valve cover.

Re: SB Mickey Thompson Valve Cover Grommets/Breather [Re: Challenger 1] #1542909 06/01/14 09:21 PM 06/01/14 09:21 PM
Joined: Aug 2003 Posts: 12,589 Sacramento, CA cal_gecko I Live Here
cal_gecko I Live Here Joined: Aug 2003 Posts: 12,589 Sacramento, CA	Quote: All the online folks have them, checkout this page. web page I bet almost all decent auto parts houses can get you a grommet kit for a Mopar. Like you said, you need a 1.5" hole for the breather and a 1.00" hole for the PCV valve. both of the holes on my valve covers are 1.5" ... I got a breather for one of them, but there's NO PCV grommets that size ...

Re: SB Mickey Thompson Valve Cover Grommets/Breather [Re: cal_gecko] #2742669 02/13/20 08:31 PM 02/13/20 08:31 PM
Joined: Jul 2012 Posts: 429 Washington skrews mopar
skrews mopar Joined: Jul 2012 Posts: 429 Washington	Doorman # 42324 .750 id Bringing this back from the dead in case it can help someone.

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