Conversions & Swaps LSX Engines in Non-LSX Vehicles
Sponsored by:
Sponsored by:

LS1 Swap help

Thread Tools
 
Search this Thread
 
Old Feb 21, 2009 | 12:26 PM
  #1  
killermaro's Avatar
Thread Starter
Registered User
 
Joined: Feb 2009
Posts: 2
Likes: 0
Default LS1 Swap help

Ok, I have a 94' chevy 1500 with a 4.3 vortec v6. And I have decided this motor sucks. I was gonna put rims on my truck in the next week or two, but I want to do the motor swap first.

I found a good deal on an LS1 and I was wondering.

1) will it bolt right in.
2) will I need to modify my wiring harness for it to work right.
3) What other parts will I need to make this work.
4) what transmission will I need or will the one behind the 4.3 work.

I am mainly wooried about whether or not I will have to change the whole harness to do this.

Any info and tips are appreciated
Reply
Old Feb 21, 2009 | 03:28 PM
  #2  
luckyhenriksen's Avatar
TECH Regular
iTrader: (1)
 
Joined: Apr 2008
Posts: 472
Likes: 0
Default

You might want to look at 5.3's or six oh's, they are cheaper than LS1's
Reply
Old Feb 21, 2009 | 03:37 PM
  #3  
jfg455's Avatar
TECH Enthusiast
iTrader: (5)
 
Joined: Aug 2008
Posts: 656
Likes: 0
From: nh
Default

check out this thread. https://ls1tech.com/forums/forced-in...rra-5-3-a.html
Reply
Old Feb 22, 2009 | 08:51 AM
  #4  
RE AND CHERYL's Avatar
TECH Fanatic
iTrader: (31)
 
Joined: Apr 2007
Posts: 1,207
Likes: 0
From: Dover DE
Default

It will prety much bolt right in, but you will need to modify several things including the A/C, P/S lines, nad I think the frame/oil pan. THe harness will need modifying unless you pay someone like Speatech to build you a plug in swap harness. THe trans can be made to work but will need a stand alone controller to run it. It would be cheaper to just install a 4L60E run off the same PCM.

Re'
Reply
Old Feb 23, 2009 | 11:56 PM
  #5  
killermaro's Avatar
Thread Starter
Registered User
 
Joined: Feb 2009
Posts: 2
Likes: 0
Default

What is the number to that place...Is it usually exspensive...
Reply
Old Feb 24, 2009 | 12:59 AM
  #6  
RE AND CHERYL's Avatar
TECH Fanatic
iTrader: (31)
 
Joined: Apr 2007
Posts: 1,207
Likes: 0
From: Dover DE
Default

Speartech

Don't know how much it cost but there is no better company for custom harness builds IMHO. I'm sure it's not cheap, but it's either do it yourself (if you can) or pay someone to do it for you.

Re'
Reply




All times are GMT -5. The time now is 11:12 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE