Difference ?between a lt1/ls1 stall/torque converter
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On The Tree
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Difference ?between a lt1/ls1 stall/torque converter Just wondering what's the difference between the torque converters(4l60e)I have a lt1 looking for a stall between.3200-4000 and I don't want to get the wrong one any hints to know which is which I feel kinda stupid asking this
Moderator
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From: Ann Arbor, MI
I'm asking for confirmation/clarification because this question seems to come up every week on this forum and while we know "it doesn't work", I have not been sure of the exact reasons.
You can use an LT style 4L60 Transmission and converter combo on an LS style motor, but you need to make a few changes... Either change to an aftermarket LS flexplate with the LT bolt pattern or drill out your OE plate to fit it, LS is 11.080" and LT is 10.750". You also need to either lengthen the pilot on the converter by ~.300" or use an extension sleeve.
Going the other way is not possible with a stock converter. The pilot on the LS style converter is to long and will bottom out in the LT crank before it hits the flexplate. But we can make a custom converter if needed.
I think that answered your question.....
Chris
Going the other way is not possible with a stock converter. The pilot on the LS style converter is to long and will bottom out in the LT crank before it hits the flexplate. But we can make a custom converter if needed.
I think that answered your question.....
Chris
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From: Ann Arbor, MI
Thank you for the detailed info; that sure helps.
Of course I always remind people that taking a 15+ year old stock transmission designed for < 300 ft/lbs and putting it on a 400+ ft/lbs engine probably will not have good results.
Of course I always remind people that taking a 15+ year old stock transmission designed for < 300 ft/lbs and putting it on a 400+ ft/lbs engine probably will not have good results.
Last edited by mrvedit; Jun 1, 2012 at 12:16 PM.
Chris
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Verdad Gallardo Moderator
Joined: Aug 2010
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From: Ann Arbor, MI
An LT trans has a 298mm input shaft while a LS trans has a completely different shaped 300mm input shaft. See the picture in this post:
https://ls1tech.com/forums/automatic...s1-4l60-e.html
An LT trans with a LT converter can be bolted to an LS engine using a GM spacer or a pilot extender sleeve. A recently started a new thread "All about Flexplates, Converters, Transmissions and Spacers":
https://ls1tech.com/forums/automatic...s-spacers.html
https://ls1tech.com/forums/automatic...s1-4l60-e.html
An LT trans with a LT converter can be bolted to an LS engine using a GM spacer or a pilot extender sleeve. A recently started a new thread "All about Flexplates, Converters, Transmissions and Spacers":
https://ls1tech.com/forums/automatic...s-spacers.html
Teching In
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From: Greenville, Tx
TECH Junkie
Joined: Dec 2012
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From: Iowa
first off...this is your 2nd post and you're reviving a long dead thread
what's worse...there are threads that cover this already
what's even worse is those threads are in the sticky!!
to answer your question...you need the proper flexplate and spacer. Make sure the trans has the correct input shaft to match the converter.
This is why new users need a 30 day hold before they can post...
what's worse...there are threads that cover this already
what's even worse is those threads are in the sticky!!
to answer your question...you need the proper flexplate and spacer. Make sure the trans has the correct input shaft to match the converter.
This is why new users need a 30 day hold before they can post...
Teching In
Joined: Feb 2019
Posts: 5
Likes: 0
From: Greenville, Tx
first off...this is your 2nd post and you're reviving a long dead thread
what's worse...there are threads that cover this already
what's even worse is those threads are in the sticky!!
to answer your question...you need the proper flexplate and spacer. Make sure the trans has the correct input shaft to match the converter.
This is why new users need a 30 day hold before they can post...
what's worse...there are threads that cover this already
what's even worse is those threads are in the sticky!!
to answer your question...you need the proper flexplate and spacer. Make sure the trans has the correct input shaft to match the converter.
This is why new users need a 30 day hold before they can post...
Really bothers you that much for someone to revive an old thread?
TECH Junkie
Joined: Nov 2013
Posts: 3,913
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From: White Bear, Mn
Very much so, especially when you start from the top and read for a while to see what's going on then you notice the thread is 10 years old.
TECH Junkie
Joined: Dec 2012
Posts: 3,614
Likes: 1,326
From: Iowa
Circle D and Mrvedit prettymuch wrote it simply enough for anyone with crayons and a kindergarten education could figure it out
Teching In
Joined: Feb 2019
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From: Greenville, Tx
Well forgive me for wasting you guys’ precious time. Good thing the thread isn’t very long otherwise you might have wasted your whole day..
Teching In
Joined: Feb 2019
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From: Greenville, Tx
Moderator
Joined: Aug 2010
Posts: 7,323
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From: Ann Arbor, MI
As the newbie hopefully learned, posting on old threads is not appreciated because it causes everyone who originally posted to get an email update and they then have to re-read the thread to determine whether its an ongoing thread or a long-dead thread.
Therefore, I am closing this thread.
Therefore, I am closing this thread.
