73-87chevytrucks.com

73-87 Chevy _ GMC Trucks => Engine/Drivetrain => LS Swaps => Topic started by: youngboyinthe74 on November 13, 2014, 07:40:42 PM

Title: 5.3 Swap questions
Post by: youngboyinthe74 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?
Title: Re: 5.3 Swap questions
Post by: Captkaos 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.
Title: Re: 5.3 Swap questions
Post by: youngboyinthe74 on November 29, 2014, 06:57:35 PM
On the factory 74 truck harness.
Title: Re: 5.3 Swap questions
Post by: Captkaos 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?
Title: Re: 5.3 Swap questions
Post by: youngboyinthe74 on December 23, 2014, 07:30:19 AM
Autometer gauges. Thx for that info btw