4L60e vs 4L80e?

GroceryGetter83

GroceryGetter83

Apprentice
Sep 18, 2018
58
124
33
Tampa, Florida
#1
Question (I feel as though I know the answer but want to back it up): Which transmission should I run for my Cutlass LS swap? I have a 60e with the pull out I bought, but everyone runs 5.3L with the 80e. I know the 80e is a beef cake.

Seems like it isn't worth beefing up the 60e? Just start with the 80e and call it a day...

Car goal is >500 whp, run 10s? Drive on weekends and to/from strip. Going to build it to beat on it.
 
BuickOldsPontiac

BuickOldsPontiac

Master Mechanic
Oct 14, 2011
329
213
43
Dover, DE
#2
I think if your going to beat on it, go straight to the 4l80e.
 
Northernregal

Northernregal

G-Body Guru
Oct 24, 2017
501
1,398
93
Red Deer AB
#3
80e hands down. It costs a boatload of cash to get the 60e to the strength the 80e already has, plus it’s really easy to redo the clutches yourself on the 80e. Do it right at the start and don’t look back.
 
Anubis

Anubis

Royal Smart Person
Mar 30, 2012
1,561
755
83
#6
Thanks fellas. Those are all the things I assumed.

Will find an 80e!
We aware that 2004 and newer 4L80's have a revised valve body and you cannot mechanically select 2 or 1 using the PRNDL. A controller is required.
 
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