LTX and LSX Putting LT1s, LS1s, and their variants into Third Gens is becoming more popular. This board is for those who are doing and have done the swaps so they can discuss all of their technical aspects including repairs, swap info, and performance upgrades.

Getting ready for my lt1 swap

Thread Tools
 
Search this Thread
 
Old Jul 31, 2010 | 12:06 AM
  #1  
SovereignDragon's Avatar
Thread Starter
Member
 
Joined: Nov 2007
Posts: 133
Likes: 0
From: Leavenworth, Kansas
Car: 1990 Trans Am
Engine: 305 TPI (for now)
Transmission: 700-R4 (for now)
Axle/Gears: 2.73 10 bolt (for now)
Getting ready for my lt1 swap

I just picked up my donor lt1 today and it's in great shape. The only problem is that the po had to use just about everything for his lt4 swap. He still has a lot of parts to include water pump, accessory bracket, harness, computer, and stock exhaust manifolds left. What all should I try to get from him to make my swap easier?
Reply
Old Aug 1, 2010 | 01:45 PM
  #2  
Pocket's Avatar
Supreme Member
20 Year Member
iTrader: (24)
 
Joined: Jun 2005
Posts: 8,122
Likes: 362
From: NC
Car: 91 Trans Am
Re: Getting ready for my lt1 swap

You need the longblock, intake, accessories, harness, PCM, trans

Nearly everything else is getting replaced just to make the new engine fit

What all did he take off?
Reply
Old Aug 1, 2010 | 04:01 PM
  #3  
SovereignDragon's Avatar
Thread Starter
Member
 
Joined: Nov 2007
Posts: 133
Likes: 0
From: Leavenworth, Kansas
Car: 1990 Trans Am
Engine: 305 TPI (for now)
Transmission: 700-R4 (for now)
Axle/Gears: 2.73 10 bolt (for now)
Re: Getting ready for my lt1 swap

I've got the long block, intake, throttle body, and fuel rail. He used the harness that was in his car but chopped some of the pigtails off of the one he got to replace some missing ones from his harness. He also used the water pump and accessory bracket. He has two computers, one is from the roadmaster that the engine was pulled from, and the other from the vette that he got the lt4 from. It's just that with all his parts he has left over being lt4 i don't know what all I can use. Is there a bracket that will mount the alternator on the drivers side so I can use the lt4 water pump if it will work with the lt1? I was thinking about just running manual steering so no need for the pump.
Reply
Old Aug 1, 2010 | 06:10 PM
  #4  
Pocket's Avatar
Supreme Member
20 Year Member
iTrader: (24)
 
Joined: Jun 2005
Posts: 8,122
Likes: 362
From: NC
Car: 91 Trans Am
Re: Getting ready for my lt1 swap

Whats different about the LT4 WP? None of the LTx WPs are belt driven

You've got nearly everything. I hope you're getting a great deal on the B-body iron head LT1 (be sure its not a L99) because they're super common in JYs for a couple hundred bucks
Reply
Old Aug 1, 2010 | 09:27 PM
  #5  
SovereignDragon's Avatar
Thread Starter
Member
 
Joined: Nov 2007
Posts: 133
Likes: 0
From: Leavenworth, Kansas
Car: 1990 Trans Am
Engine: 305 TPI (for now)
Transmission: 700-R4 (for now)
Axle/Gears: 2.73 10 bolt (for now)
Re: Getting ready for my lt1 swap

The first thing I looked at was the casting number to make sure it was a legit LT1. He said he tried using the LT4 water pump and accessory bracket with the LT1 but one of the outlets was to close to the alternator. I think I could toss on a 90 degree rubber hose and be fine.

So it sounds like I need the water pump, roadmaster computer, harness, and accessory bracket. Or should I say scrap the accessory bracket and just order an alternator bracket from summit.
Reply
Old Aug 2, 2010 | 05:06 PM
  #6  
Pocket's Avatar
Supreme Member
20 Year Member
iTrader: (24)
 
Joined: Jun 2005
Posts: 8,122
Likes: 362
From: NC
Car: 91 Trans Am
Re: Getting ready for my lt1 swap

Use whatever it came with assuming all the accessories are present
Reply
Old Aug 3, 2010 | 08:00 PM
  #7  
chevyowner02's Avatar
Supreme Member
20 Year Member
iTrader: (3)
 
Joined: May 2004
Posts: 1,037
Likes: 2
From: Kingsport Tenn
Car: 1992 camaro
Engine: LT1
Transmission: 4L60E
Axle/Gears: 3:73
Re: Getting ready for my lt1 swap

Read alot of Pockets wiring posts and have fun.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
midge54
LTX and LSX
18
Sep 2, 2020 07:13 PM
midge54
LTX and LSX
21
Dec 27, 2019 04:14 PM
midge54
Engine/Drivetrain/Suspension Wanted
1
Jan 29, 2017 07:00 PM
sreZ28
Engine Swap
4
Aug 14, 2015 07:48 PM
1992 Trans Am
Engine/Drivetrain/Suspension Parts for Sale
1
Aug 8, 2015 08:16 PM




All times are GMT -5. The time now is 11:26 AM.