Do I need wiring harness?
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Junior Member
Joined: Oct 2020
Posts: 57
Likes: 0
From: Houston, Texas
Car: 1987 Firebird Formula
Engine: 305 Carbureted
Transmission: 700r4
Do I need wiring harness?
I’m about to pull a Vortec 350 from a junkyard truck to replace my 5.0. Do I need the wiring harness from the Vortec or will it work with my stock one from my carbed 5.0?
Senior Member
Joined: Feb 2019
Posts: 786
Likes: 197
From: SW Missouri
Car: 1989 Trans Am
Engine: sp357
Transmission: TKX
Re: Do I need wiring harness?
Depends on what you are doing with it. If you want to retain the vortec fuel injection system from the vehicle you pulled it from, probably. If you are just going to run a carb your existing wiring harness should be fine.
Thread Starter
Junior Member
Joined: Oct 2020
Posts: 57
Likes: 0
From: Houston, Texas
Car: 1987 Firebird Formula
Engine: 305 Carbureted
Transmission: 700r4
Re: Do I need wiring harness?
Cool, I’m sticking with the carb so good news for me
Supreme Member
Joined: Feb 2021
Posts: 1,209
Likes: 449
From: WA
Car: 1989 IROC-Z
Engine: L98 350 TPI
Transmission: 700R4
Axle/Gears: BW 9 Bolt / 2.77 Posi
Re: Do I need wiring harness?
You probably want the connectors that go to the alternator but there's not much of the harness you're going to need for a carb conversion.
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