Automatic Transmission 2-Speed thru 10-Speed GM Autos | Converters | Shift Kits
Sponsored by:
Sponsored by:

4l80e torque converter nightmare!! please help....

Thread Tools
 
Search this Thread
 
Old Jul 3, 2015 | 12:11 PM
  #1  
lsrx8's Avatar
Thread Starter
Teching In
 
Joined: Mar 2015
Posts: 28
Likes: 0
Default 4l80e torque converter nightmare!! please help....

I'm in the process of swapping a 4l80e into my vehicle.

The problem im having is i cant get my fti converter to seat in the 4l80e the way it should. I'll try and post pictures. But any tips or methods that you guys have found would be great.

I did the 3 clicks and still it sticks out.

The converter is for a lt1 that was made to work with a ls1/4l80e i guess.

I sent it back to fti and asked them to swap it out with the proper one. But they sent me back the same one with the spacer welded to the pilot and what looks to be a different input shaft snout (no idea the tech name)

Basically on tranny side. No matter what i do there's a 1 1/2 inch gap between converter and transmission side.

Please help me out here guys. Any advice would be great. Ill post pics if i can figure it out. I've been calling fti all day. But im sure they closed early with the holidays.
Old Jul 3, 2015 | 12:13 PM
  #2  
lsrx8's Avatar
Thread Starter
Teching In
 
Joined: Mar 2015
Posts: 28
Likes: 0
Default

Old Jul 3, 2015 | 12:25 PM
  #3  
lsrx8's Avatar
Thread Starter
Teching In
 
Joined: Mar 2015
Posts: 28
Likes: 0
Default




This is the farthest ive been able to drop it down. There's still about a solid inch gap tranny side. I've never installed a aftermarket converter before so i have no idea what normal here.
Old Jul 3, 2015 | 02:06 PM
  #4  
dw456post's Avatar
10 Second Club
20 Year Member
Shutterbug
 
Joined: Nov 2005
Posts: 933
Likes: 75
Default

From what I remember, my converter measured about 1 1/8" (face of mounting flange to face of bellhousing.
The flexplate was out from the block mounting surface about 1" which gave me 1/8" clearance between the flexplate and converter. Perfect.
How far out does the LT1 flexplate stick out?
Old Jul 3, 2015 | 02:13 PM
  #5  
93Z2871805's Avatar
TECH Fanatic
Veteran: Air Force
15 Year Member
iTrader: (5)
 
Joined: Jun 2008
Posts: 1,736
Likes: 50
Default

It looks like you need the .400" crankshaft spacer. 12563532
Old Jul 3, 2015 | 03:19 PM
  #6  
lsrx8's Avatar
Thread Starter
Teching In
 
Joined: Mar 2015
Posts: 28
Likes: 0
Default

I mounted it and was left with 1/8 if that between flex plate and converter. Converter spun freely before bolting it to flex plate. Just worried about tranny side. I'm not a rich man. So to do things twice would most likely mean the wife will kick me out of the house :p
Old Jul 6, 2015 | 09:27 AM
  #7  
Circle-D_Brian's Avatar
FormerVendor
 
Joined: Jan 2014
Posts: 323
Likes: 3
Default

The LT and LS style of 4l80 should not matter for your purposes. If this is bolting on an LT1, you will need the short pilot. It should only extend about .250 past the converter pad. If you have a pilot extender welded on top of .250 to make it more like the LS .600, you could have issues with the converter bottoming out against your crank. Kind of late to check now. Based on the pic, the converter is stabbed all the way with over an inch of bellhousing to pad distance.

-Brian




All times are GMT -5. The time now is 03:39 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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