Firewall grommets. - Chevy Nova Forum
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Old 30th-November-2012, 08:27 PM   #1
BiPoLaR ReHaB

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Firewall grommets.

What's everyone using on your LSx builds? Please post pics,part #s and where you got it from please.

Thanks
Stan.
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Old 1st-December-2012, 11:49 AM   #2
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Not a grommet,but I made these out of an old exhaust bend. Gave me a lot of room to get the big ends of the harness threw.

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Old 1st-December-2012, 02:16 PM   #3
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look here
http://www.sealsit.com/firewall.asp
I used a split one with a 1" hole for Derek's car
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Old 1st-December-2012, 04:41 PM   #4
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My stock harness had a big grommet that had a really small hole in it. I opened up that hole and used it for the firewall penetration.
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Old 2nd-December-2012, 04:52 PM   #5
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Thanks for the input guys. Gives me some thinking to do.
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Old 4th-December-2012, 08:05 PM   #6
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A couple of places. Look into a Mustang catalog for a body plug kit. Very versitle. Next do a junk yard dive. All late model cars have any number of firewall grommets and door grommetts for power windows ect.Most places give them away.
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Old 5th-December-2012, 05:36 PM   #7
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My groomet is an 2 piece aluminum that a friend made for me. its to the right of the dipstick. I already had a hole there from the feed through coil wire....

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Old 5th-December-2012, 05:38 PM   #8
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Somebody would make good money if they designed a nice groomet.....
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Old 5th-December-2012, 10:19 PM   #9
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Very very nice!!
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Old 7th-December-2012, 10:30 PM   #10
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Quote:
Originally Posted by 69bigblock View Post
Somebody would make good money if they designed a nice groomet.....
Like this??

http://www.summitracing.com/parts/dy...40bk/overview/
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Old 9th-December-2012, 06:40 AM   #11
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Think the diameter for hole is small. I forgot what size hole I have, but it had to big enough for both PCM connectors.
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Old 10th-December-2012, 08:25 PM   #12
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The PCM connectors can be easily unhooked, the wiring fished through the grommet and firewall, then the connectors put back on. Just be sure to label the wires correctly!
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Old 11th-December-2012, 04:05 PM   #13
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I think I found what we need. They are sold through McMaster Carr.

First Link is the grommet specs., second is the McMaster number crossover.

T,

http://www.kennardind.com/grommets.htm

http://www.kennardind.com/mcmaster.html
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Old 11th-December-2012, 04:54 PM   #14
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I think I found what we need. They are sold through McMaster Carr.

First Link is the grommet specs., second is the McMaster number crossover.

T,

http://www.kennardind.com/grommets.htm

http://www.kennardind.com/mcmaster.html
What size is needed to fit the connectors through?
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Old 11th-December-2012, 06:45 PM   #15
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What size is needed to fit the connectors through?
I know that PSI uses a 2" for the hole saw size, but I'm sure the connectors won't fit, so not real sure....but I know what it isn't.....

T,
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