1500

Reply Subscribe

Thread Tools

Search this Thread

Oct 30, 2007 | 10:08 AM

ls1trucker

Thread Starter

Registered User

Joined: Oct 2007

Posts: 2

Likes: 0

1500

I got a 99 1500 4x4 a/t with a 5.3, and i want to swap with a ls1
Can anyone steer me in the right direction?
jason
thomasje@mcm12.navy.mil

Last edited by ls1trucker; Oct 30, 2007 at 11:24 AM.

Oct 30, 2007 | 11:33 AM

LS1GMCTruck

TECH Resident

iTrader: (2)

Joined: Feb 2002

Posts: 907

Likes: 2

From: Ft. Lauderdale, Fl.

Simple Engine Swap

Just assemble/buy a complete shortblock LS1 and install all your 5.3 accessories on it, and then it's just a simple R & R, using your 5.3 harness/computer as well. This is the easiest of all swaps. Its been brought up before, here on the board. Research, research, research.

Oct 30, 2007 | 11:36 AM

LS1GMCTruck

TECH Resident

iTrader: (2)

Joined: Feb 2002

Posts: 907

Likes: 2

From: Ft. Lauderdale, Fl.

Oh...By The Way...

Welcome to LS1Tech!

Oct 30, 2007 | 12:53 PM

cherryelky305

TECH Resident

iTrader: (2)

Joined: Mar 2007

Posts: 751

Likes: 0

Might also consider just building up the 5.3, people do make decent power with those. just a thought, its only a difference of .4 liters.

Oct 30, 2007 | 01:09 PM

bczee

TECH Senior Member

iTrader: (12)

Joined: Jan 2006

Posts: 6,670

Likes: 6

From: Concord, CA

Why not get a LQ4/9 short block or with heads.. !

Oct 30, 2007 | 01:32 PM

andrew69_04

TECH Resident

iTrader: (148)

Joined: Dec 2006

Posts: 848

Likes: 1

From: Crete, NE & Berthoud, CO

ya idk if i would spend the money for an LS1 when you alrady have a 5.3L....i would consider doing the 6.0 swap as mentioned above

Oct 30, 2007 | 03:13 PM

ryanvv355

11 Second Club

iTrader: (17)

Joined: Mar 2007

Posts: 756

Likes: 1

From: Hudsonville, MI

+1 for 6.0 swap.

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Brett Foote

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Pouria Savadkouei

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Verdad Gallardo

7 Most Reliable High-Performance Engines GM Has Ever Built

Verdad Gallardo

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Verdad Gallardo

6 Common C5 Corvette Failures and What's Involved In Repairing Them

Pouria Savadkouei

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Verdad Gallardo

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Pouria Savadkouei

Top 10 Most Powerful Chevy Trucks Ever Made!

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Verdad Gallardo

Nov 8, 2007 | 03:09 AM

jfman

TECH Enthusiast

iTrader: (6)

Joined: Aug 2006

Posts: 572

Likes: 0

From: Atlanta, GA

Quote:

Originally Posted by ls1trucker

The ls1 intake manifold is different. It's a lower desing and will not clear the truck water pump. Just use the 5.3 manifold an youll be set.

Yes the 5.3 computer and harness will work with the ls1 and 6.0.

Basicaly the 5.3 and ls1 and 6.0 are the same externaly and are completely interchangeable. You could bolt a 5.3 in a camaro or a vette if you wanted to and vice versa.

The only thing you need from the 6.0 or ls1 is the block and heads. If you use an ls1, you have to install the oil pan from your 5.3 on it IIRC.