Torque converter help asap please
Thread Starter
On The Tree
Joined: Jun 2008
Posts: 123
Likes: 0
From: Suburb of Detroit
Torque converter help asap please I need some help ASAP please. I'm having trouble obtaining the correct torque converter for my swap. Here's my setup, the motor is from a 2002 Silverado 1500 z71 4x4 with automatic trans. The motor it self is a 4.8l. The trans I have is a 4l60e from a 2003 express van 2500, but I don't think the trans was correct for that vehicle. I need to get a torque converter ASAP, a stock converter will do. My motor is not built and neither is the trans. PLEASE I NEED SOME HELP ASAP. Thanks in advance. Let me know if any other information is needed.
Moderator
Joined: Aug 2010
Posts: 7,323
Likes: 529
From: Ann Arbor, MI
Take a picture of the front of the trans and post it; I especially want to see the type of input shaft - 300mm or 298mm. I suspect anything 2003 is 300mm, but sometimes people don't have what they think. 300mm and 298mm converters are completely different.
A 300mm trans will bolt right up up any LS engine.
A 300mm trans will bolt right up up any LS engine.
Thread Starter
On The Tree
Joined: Jun 2008
Posts: 123
Likes: 0
From: Suburb of Detroit
Take a picture of the front of the trans and post it; I especially want to see the type of input shaft - 300mm or 298mm. I suspect anything 2003 is 300mm, but sometimes people don't have what they think. 300mm and 298mm converters are completely different.
A 300mm trans will bolt right up up any LS engine.
A 300mm trans will bolt right up up any LS engine.
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
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
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo Thread Starter
On The Tree
Joined: Jun 2008
Posts: 123
Likes: 0
From: Suburb of Detroit
Moderator
Joined: Aug 2010
Posts: 7,323
Likes: 529
From: Ann Arbor, MI
The critical front of the input shaft if fuzzy in the picture and I cannot tell for sure what it is. Kinda looks like a 298mm input shaft.
What you want for any LS swap is a 300mm input shaft. See pic in post #2:
https://ls1tech.com/forums/automatic...uld-i-buy.html
https://ls1tech.com/forums/automatic...s1-4l60-e.html
What you want for any LS swap is a 300mm input shaft. See pic in post #2:
https://ls1tech.com/forums/automatic...uld-i-buy.html
https://ls1tech.com/forums/automatic...s1-4l60-e.html
FormerVendor
Joined: Jan 2014
Posts: 323
Likes: 3
This is the 298mm input shaft. You would need an "LT" style converter to make this work with a pilot extender to properly engage the crank. The bolt pattern will be slightly different, so you can elongate the holes to make that work. We prefer a flexplate with the correct pattern, but that's another topic. As far as getting the electronics to work, that's a bit beyond my wheelhouse. Like mrvedit said, it would be easier if you got the correct "LS" trans.
-Brian
-Brian
Moderator
Joined: Aug 2010
Posts: 7,323
Likes: 529
From: Ann Arbor, MI
It looked like a 298mm "LT" style 4L60E to me too. Just not a good choice for an LS engine, especially a stock one with many miles. The tag indicates it is a '00 which should be electrically compatible with most LS PCMs, but it is still a bad choice.