Generation IV Internal Engine 2005-2014 LS2 | LS3 | LS7 | L92 | LS9

LS1,2 or 3 for new engine?

Thread Tools
 
Search this Thread
 
Old Mar 10, 2017 | 10:00 AM
  #1  
chevyss2008's Avatar
Thread Starter
Launching!
 
Joined: Jan 2016
Posts: 224
Likes: 1
Default LS1,2 or 3 for new engine?

I have a 2000 WS6 with the LS1...It currently has a mild cam, long tubes, ORY, egr delete etc and a 3k stall...Im at 141k on the odo and my oil psi is becoming an issue...its down to 10-12 at a stop, and 35 on the road...Im weighing my options on rebuilding or replacing. No matter which route I take, I do plan on installing a nice set of heads and better intake. I can get a LS1 short block pretty cheap or jump up to a 2 or 3 sb...My goal is to be mid 11`s....Would there be that much performance gain going from a 6.0 to a 6.2? Im sure going to either of those would be a decent jump from the 5.7...If I stayed with the LS1, I think it would be more cost effective to get a short block than having my block rebuilt with a rotating assembly...The heads I have sort of looked at are the PRC 2.5 for all the options...Just wanted to get some direction on which would be the best route to go, to get me to my mid 11 goal and still have a reliable car to drive on trips etc...
Reply
Old Mar 10, 2017 | 03:42 PM
  #2  
NAVYBLUE210's Avatar
TECH Fanatic
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2009
Posts: 1,845
Likes: 255
From: Coast of San Mateo County Between Pacifica & HMB
Default

My .02 always go with the Largest Bore combined with the best
Cylinder heads that one can afford. That said I would rather
have a 6.0 block with a set of MMS 235s than a 6.2 with some
so-so or even "good" heads. The better heads MMS 235s in this
example will make more HP with better throttle response and
have better drivability with a smaller cam. More ideal for a
daily driver and reliability.
Reply
Old Mar 11, 2017 | 08:10 PM
  #3  
140K_GXP's Avatar
Staging Lane
 
Joined: Dec 2010
Posts: 78
Likes: 6
Default

I would go with the LS3. It is a 6.2L and has the much better flowing heads and intake.
Reply
Old Mar 12, 2017 | 03:59 PM
  #4  
chevyss2008's Avatar
Thread Starter
Launching!
 
Joined: Jan 2016
Posts: 224
Likes: 1
Default

As stated above, the heads will more than likely be PRC 2.5 heads using a LS6 or Fast 92 intake...I would much rather have a 3, but just to throw the extra $ at one just to be able to say I have a 6.2 isn't something I want to do if the 6.0 is comparable with the same set up on heads and intake..
Reply
Old Mar 13, 2017 | 11:02 AM
  #5  
chevyss2008's Avatar
Thread Starter
Launching!
 
Joined: Jan 2016
Posts: 224
Likes: 1
Default

Have decided to go ahead with the LS3 from Thompson Motorsports....They had the best price on them...My son wants to buy my LS1 for a project engine for something he is going to build...So it all worked out pretty good..
Reply




All times are GMT -5. The time now is 09:47 PM.

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