u/Jay6232x2

Chevy 4.3 v6 to 5.3 LS

Hey all, I bought a 2003 s10 (4.3 4wd) a while back and the motor took a shit. Instead of fixing it i have decided to swap a 5.3 into it and I was hoping yall could answer a couple questions I have

  1. Does the 5.3 bolt directly to the stock 4l60, harness and all?

  2. Do the motor mounts adapter plates bolt directly to the stock body or will i have to cut/weld?

  3. Will the gauges work with the v6 cluster and v8 computer?

I am aware this is an involved process but I am looking forward to it, any help/guidance appreciated

reddit.com
u/Jay6232x2 — 5 days ago
▲ 4 r/s10

4.3 V6 to 5.3 LS

Hey all, I bought a 2003 s10 (4.3L 4wd) a while back and the motor took a shit. Instead of fixing it i have decided to swap a 5.3 into it and I have a couple questions that I was hoping yall could answer.

  1. Does the 5.3 bolt directly to a 4l60, harness and all?

  2. Do the motor mounts adapter kits bolt right up to the stock body or will I have to cut things

  3. Will the gauges all work with the v6 cluster and v8 computer?

I understand this will be an involved process but I am looking forward to it, any help/guidance appreciated

reddit.com
u/Jay6232x2 — 5 days ago