4l60 swap to 4l80 ????

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Aug 4, 2004 | 12:33 PM

more carbon

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4l60 swap to 4l80 ????

is anyone in the know,do 4l60 tc's work in 80's , do the 80's take more hp to work.also how is the computer affected.is this a good option if your fed up with 4l60e's .

Aug 4, 2004 | 02:04 PM

James B.

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From: 33.91° -117.48°

Physically the 4L80-E will need modifications to or replacement of the cooler lines and crossmember. You'll need a new yoke fitted to a shortened (7/8 to 1") driveshaft. New dipstick. Flexplate spacer or replacement.

The torque converter for the 60 will not fit. Check out a TCI Street Fighter or similar for the 4L80-E.

There is a harness adapter that can be used to plug the input speed sensor to your computer can be programmed for the 80.