LT1-LT4 Modifications 1993-97 Gen II Small Block V8

MSD Harness 685 Questions

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Old 02-16-2013, 09:45 AM
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Default MSD Harness 685 Questions

http://www.summitracing.com/parts/msd-8876

I have this harness for my 685.

I found the colors to connect the 685 to harness.
I have a few questions though.

The harness connects to the dual connector on the factory harness but only connects to one side of the coil? Does it matter what side you connect to on the coil?
Why does it only connect to one side of the coil?

Last edited by F0x Slaughter; 02-16-2013 at 10:36 AM.
Old 02-16-2013, 01:21 PM
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There are two different coil types for the LT1, make sure you have the right harness. I ran into the same issue hooking up my 685 only to learn about the two coil types. There shouldn't be any un-used connectors.
Old 02-16-2013, 03:25 PM
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There aren't any unused connectors. The factory dual connector connects to the 8876 then there is only one coming off the other side and connects to the coil.

96+ uses a single connector coil. Different number.
Old 02-16-2013, 04:47 PM
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The MSD harness uses only one side of the coil as well. It is only going to fit on the side it is supposed to go on. No worries.

Old 02-16-2013, 05:03 PM
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Shbox to the rescue again.

That is the side I have it connected to.

Was just wondering.


Thanks you mysterious super F body hero called Shbox!



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