Some added info I just learned since we got our built 4L80E for our F-body race car;
Earlier 4L80E trannys have the cooler lines one of top of each other towards the front of the trans. Later years, and more desirable, have one in the front and one in the back. Apparently this significantly helps the pressure from dropping to the rear of the trans.
Howard
www.redline-motorsports.net
1-954-703-5560
2006 ZO6 895/866 with APS TT
2010 SSRS Camaro HTR-900TT (798/801)
2011 HTR-850R Camaro
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Correct, there are internal mods that can be performed on older trannys though, that will allow the planetarys to live on the older design transmissions.Originally Posted by Redline Motorsports
The 4L80e =
Todd
1993 BMW 325is <- For Sale
2003 Silverado LS 4x4 <--- you want to autocross what?
2005 Avalanche 5.3L LS(EFI Live tuned) <-- my gas hog running on e85 3+ years now
2012 Subaru Outback (wife's daily)