5.3 na builds

Reply Subscribe

Thread Tools

Search this Thread

Jul 9, 2013 | 09:46 PM

LS1BADZ

Thread Starter

TECH Regular

iTrader: (5)

Joined: Mar 2007

Posts: 407

Likes: 0

From: Indiana

5.3 na builds

Anyone have some strong na 5.3 combos?

Jul 10, 2013 | 06:08 AM

TheWolfMatt

On The Tree

Joined: Feb 2013

Posts: 110

Likes: 1

From: Lancaster, CA

Do a search for it and I'm sure you'll come up with several builds to your liking.

Jul 10, 2013 | 10:26 AM

LS1BADZ

Thread Starter

TECH Regular

iTrader: (5)

Joined: Mar 2007

Posts: 407

Likes: 0

From: Indiana

I did and most were Weak sauce

Jul 10, 2013 | 04:33 PM

redtan

TECH Junkie

iTrader: (5)

Joined: May 2008

Posts: 3,764

Likes: 17

From: Belmont, MA

Quote:

I did and most were Weak sauce

That's cuz it's a small bore motor with limited choices for heads. And even decent heads like 799s have their valves shrouded by the small bore.

Jul 10, 2013 | 05:58 PM

wildcamaro

TECH Addict

iTrader: (15)

Joined: Nov 2009

Posts: 2,501

Likes: 4

From: Western PA

Yea best thing to do on a 5.3 is follow the L33s design of flat tops for high compression with good 243/799/aftermarket heads...when you have small cubes you need rpm to make big power if NA...do a google search on the test where hot rod magazine got junkyard 4.8 and 5.3 and made mid 400s hp on the engine dyno by using ported/aftermarket heads with a fast top intake and bigger injectors...very impressive test!

Jul 10, 2013 | 05:59 PM

Cwarta

TECH Fanatic

iTrader: (12)

Joined: May 2012

Posts: 1,796

Likes: 59

From: Elm Creek, NE

My 99' 5.3 is going to be N/A

shooting for 460+ rwhp

Jul 10, 2013 | 06:32 PM

wildcamaro

TECH Addict

iTrader: (15)

Joined: Nov 2009

Posts: 2,501

Likes: 4

From: Western PA

If keeping stock cubes you would almost have to spin it up to 7000+ rpms to keep that kind of wheel hp bc that's 600 crank hp you're talking about...not saying it can't be done but more than likely would be a first...def have to be well engineered package that's for sure