Bulkhead wiring ..HELP ..1976 K10

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jfkelley

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Oklahoma City
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John
Truck Year
1976
Truck Model
K10
Engine Size
350
I’m almost finished with my LS swap 5.3/4L 60 E/NP 241.. on the Internet there’s several videos, stating how to wire your bulkhead into the existing harness… But my bulkhead harness has a wire missing..The first picture is my wiring harness. The second one is one that’s floating around on the Internet… What do I do about that missing wire?
 

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CalSgt

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CA
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Casey
Truck Year
1980
Truck Model
Chevy K-10 Custom Deluxe
Engine Size
350
Looks like it used to be there….

It is not uncommon for the power leads coming into the bulkhead to burn up where they connect to the fuse box. The spade terminal or receptacle basically melt out.

How’s about a picture of the other side of the plug showing the pins and a picture of where it plugs in at the firewall. And an overall picture of that side of your firewall

I wonder if it has burnt up and been repaired in one of several different ways.
 

custodian

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Catawba
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William
Truck Year
1973, 1985
Truck Model
C10
Engine Size
5.3 LS, 350
When I did my LS Swap in the 73, this is what my bulkhead connection looked like. I cut out the wires I didn't need, just left them long enough to reconnect if ever needed.

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87chevy_com

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Texas
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Clint
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1987
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R10
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L83
Find a wiring diagram, that away you will know for sure what you have is right or wrong
 

2wd70blazer

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Perris California
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Carlos
Truck Year
1978
Truck Model
Silverado C10
Engine Size
5.3 LS
Was the truck running with the previous engine? If it was your good to go. I'll take a look at my bulkhead out of my 78
 

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