The Big Al

Will be installing a LS7 w/ automatic


Will be 4 speed auto (6 speed not a option)

Looking at 19154550
SuperMatic 4L85-E 4-Speed Transmission

Recommendations or know problems.

Know about the controller, not a issue

Thanks
Al

FU2

These guy's have done many Ls7 automatic conversions. There are a few others also.
http://www.rpmtransmissions.com/
Good luck.

67RSCamaroVette

iTrader: (63)

Theres nothing special to bolting an auto to the LS7.. just make sure you get the correct flexplate for your application.

rsz288

Ditto ^^^.

twinturbo496

iTrader: (2)

Much better ratios than a 4L60E
Much stronger than a 4L60E
Very strong upgrade parts available if you need them later.
Many parts interchange with TH400.

Not really much bigger than a 4L60E.

I have one behind my 496 with a 14-71. It has a DIY Rebuild and a FMVB conversion (no electronics) and the only problem is a slow 2-3 shift, that is a known problem with the FMVB kit that I used, and not a problem with electronic units.

The 4L80E is a very good transmission.

Don't be afraid to cut off the wings, they serve no purpose.

IDRIVEAG8GT

This sucks that the 6L series is not an option I don't think they're as strong as a 4L but those other two gears are nice to have.