Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

LS1 heads Compared to LS6 Heads

Thread Tools
 
Search this Thread
 
Old Jan 20, 2005 | 02:33 PM
  #1  
Evans752's Avatar
Thread Starter
TECH Enthusiast
15 Year Member
iTrader: (29)
 
Joined: Jan 2005
Posts: 565
Likes: 1
From: Logan, West Virginia
Default LS1 heads Compared to LS6 Heads

What kind of rwhp gains are they in going from a stock set of LS1 Heads(241) to a stock set of LS6(243). I was just wondering because a buddy of mine was thinking about buying a set for his car. Thanks
Reply
Old Jan 20, 2005 | 02:36 PM
  #2  
el Jonnyo's Avatar
Teching In
 
Joined: Jan 2005
Posts: 8
Likes: 0
Default

there would be a difference but not worth the cost IMO
id guess 15-20whp
i think he should port his ls1 heads
Reply
Old Jan 20, 2005 | 03:13 PM
  #3  
SouthFL.02.SS's Avatar
!LS1 11 Second Club
 
Joined: Apr 2003
Posts: 7,133
Likes: 2
From: Miami
Default

Originally Posted by el Jonnyo
there would be a difference but not worth the cost IMO
id guess 15-20whp
i think he should port his ls1 heads
Bottom line: LS6>LS1 by about 15rwhp

Is the swap from stock ls1 to ls6 head worth it? No, not for the work entailed, but if you're going to be unbolting your stock heads, look into a set of Stage II 5.3's, Stage II LS6 heads, or AFR's.

A set of 5.7 Ls1 heads can match up well to a cam:
https://ls1tech.com/forums/dynamometer-results-comparisons/263234-tsp225-mti-stg2e-dyno-results.html
But, most people swap from stock 5.7's to 5.3's or LS6 heads.
Reply
Old Jan 20, 2005 | 03:25 PM
  #4  
LS1_PNYTAMR's Avatar
11 Second Club
iTrader: (1)
 
Joined: Dec 2004
Posts: 1,627
Likes: 0
Default

well how much does it generally run for a mild port job on ur stock 241 casting heads, i mean what are good things to look for when selecting somone to do them for you?

and aren't the patriot ls1 heads just stock heads with a port job?
Reply
Old Jan 20, 2005 | 11:21 PM
  #5  
Lostpatrolman's Avatar
TECH Apprentice
iTrader: (3)
 
Joined: Aug 2004
Posts: 370
Likes: 0
From: Largo, Fl.
Default

z06 heads are usually around 800 I think... I would rather look for used heads instead of getting yours ported. You can save yourself some money that way. Look in the for sale section for some used heads, ebay also. I just bought these off ebay for 800. I have no idea how well they will do, but they have to do better then z06. And they came with patriot gold double springs, titanium keepers, ferrea 1 piece valves. I think these heads have 100 miles on them. A new set is also for sale, should go cheap. The porter is very well known in my local area for his abilities
http://cgi.ebay.com/ebaymotors/ws/eB...RK%3AMEWN%3AIT

http://cgi.ebay.com/ebaymotors/ws/eB...RK%3AMEWA%3AIT
Reply




All times are GMT -5. The time now is 10:11 AM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE