4l60e to 4l80
09-01-2014, 03:45 PM
#1
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4l60e to 4l80 Looking at swapping my 1998 trans am 4l60e to a 4l80e ? Anyone here done this give me some info with what you may have had trouble with? And how do you like it not that you did the swap?
09-01-2014, 06:08 PM
#6
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According to these dyno charts about 6HP:
https://ls1tech.com/forums/automatic...questions.html
The tighter gear ratios often more than make up for it with a reduced ET.
And a 4L80E weighs only 40 lbs more than a 4L60E (178 versus 137):
https://ls1tech.com/forums/automatic...er-rating.html
(These are all actual measured numbers, not regurgitated incorrect numbers from "arm chair" posts and poorly researched magazine articles.)
https://ls1tech.com/forums/automatic...questions.html
The tighter gear ratios often more than make up for it with a reduced ET.
And a 4L80E weighs only 40 lbs more than a 4L60E (178 versus 137):
https://ls1tech.com/forums/automatic...er-rating.html
(These are all actual measured numbers, not regurgitated incorrect numbers from "arm chair" posts and poorly researched magazine articles.)
When my procharged LQ4 gets installed sometime very soon Im going to do this swap also. Im not wanting to waste time or money on the 60e either when a mild rebuild on the 80 will most likely be plenty. 