Will my V6 harness work on a V8
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Junior Member
Joined: Apr 2004
Posts: 27
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From: Winnipeg, Manitoba, Canada
Car: 1989 Firebird
Engine: Custom 355 V8
Transmission: TH-350 with 3000 converter
Will my V6 harness work on a V8
I have a 2.8L V6 in a 1989 Firebird but I have a 355 carb motor for it and I need to know if I can use the V6 wiring harness or do I have to find a new V8 harness. Please help!!
Last edited by Big_C; Apr 28, 2004 at 07:17 PM.
Supreme Member
Joined: Nov 2003
Posts: 1,965
Likes: 0
From: Philly
Car: 85 firebird
Engine: Pos 2.8 pulled and replaced with a 350 tpi motor converted to carb.
Transmission: 700r4, vette servo,shift kit, hayden 15"x8" trans cooler.
ok im a total idiot when it comes to computerized cars but im swaping in a tpi motor into my v6 firebird and pasky i know you have done this so im sure you know the answer to my question.
The v8 has two more injectors so how does the v6 harness work with it??
The v8 has two more injectors so how does the v6 harness work with it??
Supreme Member
Joined: Jul 2001
Posts: 4,461
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From: BFE, MD
Car: 13 Ram 1500/ 78 Formy
Engine: 5.7 / 7.4
Transmission: 6sp / TH350
Axle/Gears: 3.55 posi / 3.23
he's talkin like the powers to the dash fuse box, tach lead, water temp, starter wiers, misc wires that can be used on both. you still use the v8 specific engine harness, & just splice what's needed.
oh, 
Joined: Mar 2000
Posts: 43,187
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
The original question and answer involved going from a V6 to carburated V8. That's covered in the V6 to V8 sticky above, by the way.
If you are going to a TPI V8, using the V6 harness could be grounds for an insanity charge. Get a donor TPI harness and no splicing is required. That's also covered in the sticky.
If you are going to a TPI V8, using the V6 harness could be grounds for an insanity charge. Get a donor TPI harness and no splicing is required. That's also covered in the sticky.
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