LS1 Based Engine Tech LS1 / LS6 / LS2 / LS3 / LS7 Engine Tech

Building a 5.3

Old 12-05-2015, 10:26 PM
Registered User
Thread Starter
Join Date: Dec 2015
Posts: 8
Building a 5.3

I'm building a 5.3 to put in my 2000 z28 and trying to get 500-600 hp any suggestions which would be the best way to go
Ben Jones is offline  
Old 12-06-2015, 08:57 AM
Super Moderator
Injuneer's Avatar
Join Date: Nov 1998
Location: Hell was full so they sent me to NJ
Posts: 67,282
Re: Building a 5.3

Again.... wrong forum. As you already know the 5.3 is an LSx format engine, so I'll move this from "LT1 Based Engine Tech" to "LS1 Based Engine Tech".

There was more than one 5.3L V8 used in the trucks in 2003. Does it have an iron block (LM7, L59), or an aluminum block (LM4, L33)?

Did you read the article on building the 5.3 I linked in your post on the "New Member Intro" forum?

5.3L LS Small Block Build - Here Comes Modern Mouse! - Super Chevy Magazine

Are you looking for 500-600HP at the flywheel or at the rear wheels? 500HP is easy at the flywheel.... 600HP at the rear wheels is a project.

Last edited by Injuneer; 12-06-2015 at 09:00 AM.
Injuneer is offline  
Old 12-06-2015, 09:42 PM
Registered User
Join Date: Nov 2002
Location: Jacksonville
Posts: 4,790
Re: Building a 5.3

Easiest way to get there with a 5.3 (500 or 600 hp) is going to be with a stock bottom end. Install some cheap head studs, open the ring gaps a bit and put a turbo on it. They'll do 600 whp for years and if you do manage to screw it up you can get another one for cheap.
97WS6SCharged is offline  
Related Topics
Thread Starter
Last Post
LS1 Based Engine Tech
03-23-2016 09:05 AM
LS1 Based Engine Tech
01-26-2016 06:35 PM
03-02-2015 06:03 PM
General 1967-2002 F-Body Tech
02-19-2015 10:29 AM
LS1 Based Engine Tech
08-01-2002 04:34 PM

Thread Tools
Search this Thread
Quick Reply: Building a 5.3

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.