3.4 to lt1 swap harness help
3.4 to lt1 swap harness help what do you do about the 3.4 harness? i noticed its mixed up with the body harness too (headlights, turn, park, fog lamps)... do i have to seperate them from the engine harness? i think i fucked up by buying a caprice harness and not a f-body harness. i dont think it will work. any advice? car is a 94 camaro
Joined: Apr 2008
Posts: 1,169
Likes: 1
From: Born/Raised North East, MD Lived in VA, NC, MI Back in Yorktown, Va
i did the same thing you did a 3.4 auto swap to a 383 LT1 m6 swap. you need to swap the LT1 harness over. you have to swap the entire engine harness. i did my body harness to (interior) for the gauges and what not. and the computer you definately need to swap the harness unless your a wiring genious and can rewire the whole thing lol. but yea your gonna have to find a Z28 harness and swap it
pm with any questions or help
pm with any questions or help
but the harness has the lights (headlights, fog, turn, etc) included in the whole thing. do i have to seperate those? and the harness runs through the firewall into the insturment panel. im lost as to what to do about the wiring. its not what i expected.
11 Second Club
Joined: Jan 2010
Posts: 1,707
Likes: 13
From: New Orleans, LA
Try to get an F-body V8 harness then see if it plugs into your existing body harness. I think the two connect at the fire wall under the dash. If this does not work then you need a complete harness for the whole car.
Joined: Apr 2008
Posts: 1,169
Likes: 1
From: Born/Raised North East, MD Lived in VA, NC, MI Back in Yorktown, Va
ok your speedo will be different correct the v8 speedo i believe is 160. *i thought* but its definately more and the v6 is like a 120 your tach will be off and your speedo will be off. yes the harness through your engine bay goes from the firewall. where it connects to the interior harness. wraps around hits all the lights all the motor **** and goes to the computer. literally you need to swap EVERYTHING!!! thats why i tell everyone who has ever showed any interest in this is to buy a donor car that you know evrything works and can drive then swap EVERYTHING... literally everything when i did mine i dropped both kmembers and pulled wiring harness the just swapped them. its quite easy but you cant mix and match between different cars and different years. you aldo have to have the same year wiring harness cause some of the wiring on different years i believe have very small differences.
Trending Topics
11 Second Club
Joined: Jan 2010
Posts: 1,707
Likes: 13
From: New Orleans, LA
Try this first^^. And yes you need a V8 gauge cluster, not the whole dash...
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Joined: Apr 2008
Posts: 1,169
Likes: 1
From: Born/Raised North East, MD Lived in VA, NC, MI Back in Yorktown, Va
man like i said just find a junkyard that has everything and rip it out. ill even make a few calls to see if i can find you anything
none of the yards around here have them they all cut them up to get the motor out faster. but thanks to a guy that saw my wanted post on here i bought a harness ecm and cluster from him.
its going good. i got alot done today with suspension and the removal of the v6 and trans. im trying to figure out how to use my "profile" to keep updates of my swap. im obviously new to ls1tech so any help would be appreciated. need to figue how to load pics too
