C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

85 plug wire install

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Old Aug 17, 2025 | 01:40 PM
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Default 85 plug wire install

Do you have to put the wires on the cap before installing it. Which cylinfer number has tge 135 degree boot.
p.s. is there a chart with the wire length and cylinder number?

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Old Aug 18, 2025 | 03:34 PM
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I would install them one at a time so you can get the correct length for each. No where I know that list individual lengths. 135 goes to #6, 3rd from the front, passenger side.
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Joe K
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Old Aug 18, 2025 | 09:17 PM
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I have a set of "factory reproduction" wires for my '84 that I got from Top Flight a while back, just haven't had the desire to change the plugs and wires just yet. I'm thinking the wire lengths listed on the instructions are similar to your '85. Hope this helps.

The box says 84 only but I think it has more to do with OEM originality. Cant imagine why the lengths would be much different than an 85.
The box says '84 only but I think it has more to do with OEM originality. Can't imagine why the lengths would be much different than an '85.
In case you lost track of where each wire goes.
In case you lost track of where each wire goes. Haha.

Last edited by typical boomer; Aug 18, 2025 at 09:24 PM.
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Old Aug 18, 2025 | 09:32 PM
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How do you get the top wire cap on?
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Old Aug 18, 2025 | 10:44 PM
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It snaps on top of the coil cover after all the plug wires are re-attached to the distributor cap. It catches on the spots where the words "latch" are. Once you see it, it seems so simple but I get why it's confusing. It took me a minute to remember how I had removed it in the first place since I had it apart for a week waiting for AC/Delco coil and ICM to arrive to replace the Pertronix Flame Thrower junk I tried first.

I think the holes are for plug wires that have the numbers printed on top of the terminals.
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Old Aug 19, 2025 | 09:15 AM
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Originally Posted by typical boomer

I think the holes are for plug wires that have the numbers printed on top of the terminals.
The holes retain rubber extension of wire boot.
Typical HEI boot

Here is wire route from manual.


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Old Aug 19, 2025 | 10:37 AM
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I get how the wires attach to the top plate and how the plate attached to the cap but as you can see from the picture, the firewall is in the way. The plate wont go on the cap.
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Old Aug 19, 2025 | 11:36 PM
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Originally Posted by AGENT 86
The holes retain rubber extension of wire boot.
Typical HEI boot

Here is wire route from manual.
Yup I went back and looked at my "new" wires and sure enough they look just like the hei boot style you pictured.
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