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

4L80E swap - flexplate options

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Old Jun 7, 2016 | 09:25 AM
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Default 4L80E swap - flexplate options

Hey guys, I'll be doing a 4L80E swap into my car soon and instead of getting a custom LT1 -> 80e converter to adapt to the stock flexplate I've read I can do a SFI 168 tooth flywheel and use a mini high torque starter (the one in it is on the way out anyways) to be able to run a standard 80e converter that should bolt up to an LS engine if I ever go down that dark alley. Has anyone on here done the 80e swap with a standard style converter and 168 tooth flywheel and what was the setup? I'm looking to start getting the parts together soon, already have the 80e, going to do MCW tunnel mount torque arm and 80e conversion x member, madman dipstick, and what to do about the existing shift linkage and cooler lines.

Last edited by KLaBZ28; Jun 7, 2016 at 10:16 AM.
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Old Jun 7, 2016 | 10:47 AM
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My FTI converter has both bolt patterns, so I can run the larger pattern later if I so please. Simpler to stick with a 153 tooth and be more "stockish" than fall completely off the map.

Cooler lines will depend on what year core you have for trans, but anticpate making new ones regardless.

The shifter cable bracket will need the holes slotted and then adjusted, shoebox has the article on how to adjust the 60e cable. Same thing.
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Old Jun 7, 2016 | 10:57 AM
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Cool! Thanks for the info man, I'll give Greg at FTI a call. I just installed a new billet lockup LS converter from him for my 9-7x.
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Old Jun 7, 2016 | 11:44 AM
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Originally Posted by KLaBZ28
Cool! Thanks for the info man, I'll give Greg at FTI a call. I just installed a new billet lockup LS converter from him for my 9-7x.
I'll also confirm this. We just put a 3600 stall ESRL converter in ours with a 4L60E - has both bolt patterns.
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Old Jun 13, 2016 | 03:50 PM
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I swapped a 4L80 into my truck and reused the original 4L60 flywheel. 3 of the 6 80E holes lined up, but it seems OK.
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