4.3l Performance
Thread Starter
CF Beginner
Joined: Aug 2018
Posts: 3
Likes: 0
4.3l Performance
I have a 2003 4.3l Silverado and I was wondering what y’all would recommend replacing in the engine for a PROPER custom tune. I already ordered a 270 cam, rocker arms, a exhaust system, and the complete cam kit comes with: lifters, a timing chain and gear, valve springs, retainers, and locks. Do y’all recommend changing the little things like sparks plugs, push rods, headers...etc? or am I missing some other major components for the build? Keep in mind I’m building it for the streets for it to be a fun daily driver. If what I have in the truck matters too then I have: a 6 inch lift, and 20x12’s on 305’s. The other things are cosmetic.
CF Monarch
Joined: Oct 2017
Posts: 4,605
Likes: 269
From: USA
I have a 2003 4.3l Silverado and I was wondering what y’all would recommend replacing in the engine for a PROPER custom tune. I already ordered a 270 cam, rocker arms, a exhaust system, and the complete cam kit comes with: lifters, a timing chain and gear, valve springs, retainers, and locks. Do y’all recommend changing the little things like sparks plugs, push rods, headers...etc? or am I missing some other major components for the build? Keep in mind I’m building it for the streets for it to be a fun daily driver. If what I have in the truck matters too then I have: a 6 inch lift, and 20x12’s on 305’s. The other things are cosmetic.
