Thread: 6l90e or 4l80e?
View Single Post
Old 03-14-2015, 01:53 AM   #1
67chevysupercharged
Registered User
 
67chevysupercharged's Avatar
 
Join Date: Sep 2009
Location: Hobbs, New Mexico
Posts: 48
6l90e or 4l80e?

Hey all,

I'm getting to close to finally installing an ls engine into my 67 short bed but I'm having a dilemma on trying to figure out which route I want to take. I have both a complete gen 3 6.0/4l80e and a complete gen 4 6.0/6l90e combo that I got together in a package deal. The plan for the truck is to be a fun driver that will see the track a few times a year. I originally planned on running the gen 4 due to it having the better flowing l92 cylinder heads, but am concerned about the lack of aftermarket support for the 6l90e and wonder if it will survive behind a higher horsepower application. Any and all help is greatly appreciated.

Thanks,
Zak
__________________
71 Longhorn 402, PS, PDB, AC, Tach, Posi

67 SWB 6.0 LSX swap, 4/6 ECE Drop (Work in Progress)

2002 Victory Red ECSB Silverado 5.3 (DD)
67chevysupercharged is offline   Reply With Quote