LS Swap in 4x4 71 longbed
 

I just bought my second C10 and this one is for my son. I'm planning a LS swap and would like to know what kind of suggestions people have on a few things

Looking for better gas mileage
Looking for reliability

I was thinking a 5.3 or 4.8 with a 4L60 is this a good choice?

Also will a T-case from a earliy 2000 motor tranny 4x4 work as well as long as I use a manual shift?

I wanted to change the 4:10 rear end to 3:73 posi any options either way?

Thanks,

Justin

Re: LS Swap in 4x4 71 longbed
 

Can't help you on the ls swap but the transfer case is a no go if you've got a Chevy front axle under it. With The later cases the front driveshaft drops on the wrong side.

Re: LS Swap in 4x4 71 longbed
 

Justin,

I did an LS swap in another project.

The biggest factor for me was what I could easily find available. I ended up with a 5.3 with 4L60 and ECU pull out. I followed the instructions on lt1swap.com for the wiring harness and had no problems.

It fires up and goes straight to idle every single time.