LT1 to LS1 T56 Conversion
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LT1 to LS1 T56 Conversion I took a little time the other day to do a small write up about converting my LT1 T56 to use an LS1-style clutch. I've had a few ask about the process and parts involved, so I figured I would just write it down to share with everyone.
http://www.formula383.com/2011/10/05...56-conversion/
It's not a step-by-step manual but rather more of a story of my experience with conversion, some recommendations and a parts list. Hopefully this will help others who are considering the swap or just curious what it's about.
http://www.formula383.com/2011/10/05...56-conversion/
It's not a step-by-step manual but rather more of a story of my experience with conversion, some recommendations and a parts list. Hopefully this will help others who are considering the swap or just curious what it's about.
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From: Land of the Mormon's although I'm not one of them
Shortening the input shaft 0.500" would achieve the same thing as the bell-housing/tranny spacer, or would this reduce the room for the clutch such that it wouldn't work?
Any adverse issues with the shifter location in the car with the 1" shift of the tranny?
Any adverse issues with the shifter location in the car with the 1" shift of the tranny?
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As far as moving the shifter back, I only had to trim a little more from the opening in the trans tunnel. It clears the center console fine and I've already gotten used to the feel of it being closer.
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From: Land of the Mormon's although I'm not one of them
Hmmm... I wonder if TDP (?) would be able to extend the splines back further while shortening the shaft to fit. Then the only issue would be the height of the Throw-out bearing.
I saw the picture of the spacer you had to use, I'm assuming this was to bring the face of the throw-out bearing forward to properly engage the pressure plate?
I saw the picture of the spacer you had to use, I'm assuming this was to bring the face of the throw-out bearing forward to properly engage the pressure plate?
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Hmmm... I wonder if TDP (?) would be able to extend the splines back further while shortening the shaft to fit. Then the only issue would be the height of the Throw-out bearing.
I saw the picture of the spacer you had to use, I'm assuming this was to bring the face of the throw-out bearing forward to properly engage the pressure plate?
I saw the picture of the spacer you had to use, I'm assuming this was to bring the face of the throw-out bearing forward to properly engage the pressure plate?
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From: Land of the Mormon's although I'm not one of them
Cool. Thanks for the info! I was hoping I could do something like this, with the SSR output shaft on the T56 it looks to make a fairly stout tranny.
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From: Round Rock, TX
Not really. First reason is the LS1-style design of the Street Twin is less-likely to fail under high horsepower, high rpm applications. Second reason is greater availability and selection of clutches.
Kudos for putting this together! Two questions:
1) where did you get the mid plate from? The TUE part number
2) Can you elaborate a little on this quote I took from your writeup:
I know that changing the input shaft to the LS one requires this change, but how do you go about it exactly? Is that what this shim kit is for?
Tremec Shim Kit TRS394225K 45.99
1) where did you get the mid plate from? The TUE part number
2) Can you elaborate a little on this quote I took from your writeup:
Replace the front case and input shaft of your LT1 transmission with an LS1 front case an input shaft. The LS1 input shaft is longer and exposes more of the splines which is especially beneficial and even required for twin disc setups. Make sure to set the correct amount of endplay on the input shaft. I was advised to set endplay at 0.004″.
Tremec Shim Kit TRS394225K 45.99
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From: Round Rock, TX
Kudos for putting this together! Two questions:
1) where did you get the mid plate from? The TUE part number
2) Can you elaborate a little on this quote I took from your writeup:
I know that changing the input shaft to the LS one requires this change, but how do you go about it exactly? Is that what this shim kit is for?
Tremec Shim Kit TRS394225K 45.99
1) where did you get the mid plate from? The TUE part number
2) Can you elaborate a little on this quote I took from your writeup:
I know that changing the input shaft to the LS one requires this change, but how do you go about it exactly? Is that what this shim kit is for?
Tremec Shim Kit TRS394225K 45.99
If you are just doing the input shaft, it's pretty straight forward. Unbolt the old front cover, swap input shafts, replace the bearing and race, set endplay and bolt the new cover back up. I ended up replacing the 3-4 synchro assembly and we had to take the whole transmission apart.
