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Old 02-22-2017, 08:36 PM   #1
Tony_W
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Join Date: Dec 2016
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LMC tach wiring harness

Family got me the LMC tach and wiring harness.

So will attempt this,weekend to install.

I just put a speedway wiring harness in my 1980 c10 and it has the tach wire that goes thru the fuse box.

Question is, can I use this signal wire or do I just use the LMC harness?

Appreciate any feed back on the question.
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Old 02-23-2017, 01:57 AM   #2
gmachinz
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Re: LMC tach wiring harness

The LMC tach harness doesn't include the filter for use w/HEI tho.
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Old 02-23-2017, 10:58 AM   #3
Tony_W
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Re: LMC tach wiring harness

They purchased package 36-1885 which shows for HEI?
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Old 02-23-2017, 11:07 AM   #4
gmachinz
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Re: LMC tach wiring harness

Doesn't include the tach filter tho.
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Old 02-23-2017, 12:19 PM   #5
Tony_W
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Re: LMC tach wiring harness

This work with the LMC?

http://www.speedwaymotors.com/Classi...lter,5613.html
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Old 02-23-2017, 09:39 PM   #6
gmachinz
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Re: LMC tach wiring harness

This is what it should look like-ideally anyway. The Speedway one may work but it looks a bit cheesy to me-I don't have any extras made up in my parts bin to send ya-I may have to make a few tach harnesses myself lol

Anyhow, when using any high energy distributor, a tach filter should be used if you're going with an OEM tach.
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