LT1-LT4 Modifications 1993-97 Gen II Small Block V8

TH350 swap

Thread Tools
 
Search this Thread
 
Old Dec 4, 2006 | 11:03 AM
  #1  
chameleongreen97ta's Avatar
Thread Starter
Launching!
iTrader: (4)
 
Joined: Apr 2006
Posts: 218
Likes: 0
From: St Louis, MO
Default TH350 swap

i am pretty sure my tranny is slipping i was wondering how hard would it be to put in a TH350 or 400 what all do i need to do a good writeup would be great
Reply
Old Dec 4, 2006 | 11:09 AM
  #2  
Sweetred95ta's Avatar
Launching!
iTrader: (2)
 
Joined: Nov 2005
Posts: 215
Likes: 0
From: Arnold, MO
Default

You'll need:
-to buy the 3rd gen install kit (for the torque arm)
-do some fabrication to your crossmember
-unless you get the th350 with the longer tail shaft, you'll need a driveshaft
-figure out how to run your speedometer
-get a tb and bracket from a 93 LT1 so you can run the kick down cable
-buy a torque converter
-have your PCM A4 DTC's turned off

I'm sure I'm missing stuff, also.
Reply
Old Dec 4, 2006 | 11:38 AM
  #3  
chameleongreen97ta's Avatar
Thread Starter
Launching!
iTrader: (4)
 
Joined: Apr 2006
Posts: 218
Likes: 0
From: St Louis, MO
Default

so would it be easy to just rebuild my 4l60e
Reply
Old Dec 4, 2006 | 11:40 AM
  #4  
chameleongreen97ta's Avatar
Thread Starter
Launching!
iTrader: (4)
 
Joined: Apr 2006
Posts: 218
Likes: 0
From: St Louis, MO
Default

my car seems to only move if i have the shifter in the 3 postion and my car seems to bog in 4th so could it be something other then my tranny like my torque converter
Reply
Old Dec 4, 2006 | 11:44 AM
  #5  
Sweetred95ta's Avatar
Launching!
iTrader: (2)
 
Joined: Nov 2005
Posts: 215
Likes: 0
From: Arnold, MO
Default

Originally Posted by chameleongreen97ta
my car seems to only move if i have the shifter in the 3 postion and my car seems to bog in 4th so could it be something other then my tranny like my torque converter
By move, do you mean just taking off or it's faster with it in the D position? Also, what exactly are you talking about with it seeming to 'bog in 4th'? What does it do? Just not go anywhere when you give it gas?
Reply
Old Dec 4, 2006 | 11:48 AM
  #6  
chameleongreen97ta's Avatar
Thread Starter
Launching!
iTrader: (4)
 
Joined: Apr 2006
Posts: 218
Likes: 0
From: St Louis, MO
Default

yeah when i take off regular and bog like it slips but not slips so seems like it bogs and when i go up hills with it in D then it slips but not when i have it on 3
Reply
Old Dec 4, 2006 | 11:48 AM
  #7  
chameleongreen97ta's Avatar
Thread Starter
Launching!
iTrader: (4)
 
Joined: Apr 2006
Posts: 218
Likes: 0
From: St Louis, MO
Default

yeah D does not to seem to work at all at any speed anything
Reply
Old Dec 4, 2006 | 01:24 PM
  #8  
Sweetred95ta's Avatar
Launching!
iTrader: (2)
 
Joined: Nov 2005
Posts: 215
Likes: 0
From: Arnold, MO
Default

Originally Posted by chameleongreen97ta
yeah when i take off regular and bog like it slips but not slips so seems like it bogs and when i go up hills with it in D then it slips but not when i have it on 3
Dude, you lost me at 'yeah...'. If you're pushing the gas and the car isn't wanting to move, then the transmission is probably shot.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

 Brett Foote
story-1

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-2

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-3

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-4

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

 Verdad Gallardo
story-5

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-6

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-7

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-8

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-9

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
Old Dec 4, 2006 | 01:51 PM
  #9  
Shon Herron's Avatar
TECH Fanatic
iTrader: (25)
 
Joined: Nov 2001
Posts: 1,784
Likes: 0
From: SC
Default

Decide what Torq Arm you are going to use. Then you can decide on other options. I like using the 9" tail shafts on the TH350 so you can re-use the stock DS.

It does not have to be an expensive swap, just make sure you get a GOOD TC so all the effort will be worth it.

I do not run kick down cables. Speedo will be tricky but workable.
Reply




All times are GMT -5. The time now is 11:14 AM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-1
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-2
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-3
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-4
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-5
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-6
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-7
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-8
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-9
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