4l60e to 80e

[Tzfbird]

I did mean if it was carb or retaining EFI.
Even if it's a fun truck, I currently have a TH400 in my 3/4 ton with 4.10 gears and it runs around 3000rpm at 55mph. That gets old real fast if I ever want to get anywhere. I use almost a 1/4 tank making a 40 mile trip at highway speeds.

Personally I didn't like the 4.3 in an S10 so I never understood the full size application.

 

[Supercharged111]

Even if you din't mind the RPM, the trans has a wider gear spread so you could gear deeper and the TCC keeps it cooler. Plus you can more accurately choose your shift points, the list goes on.

 

[Tzfbird]

It's a different story if he's running carb and needs the TPS, MAP, etc to run the 4L80e. In that case the 400 turns out to be a far easier swap. Or run an expensive stand-alone controller.
Don't forget that you will need to run and control +12v to the kickdown solenoid for the 400. Not sure if they have a hydraulic option to get away from the electronic valve.

 

[Seminole Life]

Even if you din't mind the RPM, the trans has a wider gear spread so you could gear deeper and the TCC keeps it cooler. Plus you can more accurately choose your shift points, the list goes on.

The th400 or the 4l80 has a wider spread

 

[Supercharged111]

The th400 or the 4l80 has a wider spread

The one with 4 forward gears.

 

[Seminole Life]

The one with 4 forward gears.

That's what I figured, just making sure

 

[Seminole Life]

I'm just wanting to keep things simple, it's my first drivetrain swap and I don't want to get too crazy with it

 

[Keepinitoldskool]

Do the 4l80e its not that difficult and there have been plenty of threads on it

Sent from my SAMSUNG-SM-G890A using Tapatalk

 

[Supercharged111]

Plus the 454 came with the 4L80E so it's just slapping a compatible stoxk setup in there

 

[MIHELA]

The frame will be pre-drilled to move the trans crossmember back. You will need to have the driveshaft shortened. It basically bolts right in.