Author Topic: 5.3 Swap questions  (Read 1858 times)

Offline youngboyinthe74

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5.3 Swap questions
« on: November 13, 2014, 07:40:42 PM »
Hey guys,  im doing a 5.3 swap on my 74 c10 and i have a couple questions about wiring the motor up.
1. From the factory harness, what are the main wires needed?
2. Which color wire is for the fuel gauge and do i just run that to the sending unit even tho it has power coming from relay?

Offline Captkaos

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Re: 5.3 Swap questions
« Reply #1 on: November 24, 2014, 12:40:29 PM »
Factory Truck harness or the 5.3 harness?
the fuel gauge uses a pink wire.  it will be in the same harness as the power wire.

Offline youngboyinthe74

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Re: 5.3 Swap questions
« Reply #2 on: November 29, 2014, 06:57:35 PM »
On the factory 74 truck harness.

Offline Captkaos

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Re: 5.3 Swap questions
« Reply #3 on: December 01, 2014, 10:17:51 PM »
You need the starter, power distribution, Alternator, AC and gauge senor wiring from the factory setup.
What are you going to do for the speedometer?

Offline youngboyinthe74

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Re: 5.3 Swap questions
« Reply #4 on: December 23, 2014, 07:30:19 AM »
Autometer gauges. Thx for that info btw