New LS1 Owners - Newbie Tech Basic Technical Questions & Advice
Sponsored by:
Sponsored by:

What is this LS engine?

Thread Tools
 
Search this Thread
 
Old Nov 28, 2018 | 03:54 PM
  #1  
andyfanshawe's Avatar
Thread Starter
Registered User
 
Joined: Nov 2018
Posts: 3
Likes: 0
Default What is this LS engine?

Hi all.
My intro in relevant section and I need help identifying an engine I am just about to buy!
I am in the UK if its any relevance!
I know the engine has never been run. And its a cast iron block and its a 6 litre.
Not picked it up yet so haven't got any numbers yet.
So what is it?!!!
Thanks.
Andy.


Reply
Old Nov 29, 2018 | 02:06 PM
  #2  
bammax's Avatar
TECH Resident
 
Joined: Jul 2007
Posts: 967
Likes: 53
From: Winter Haven FL
Default

Iron means truck/van. 6.0 stamp is the displacement. So it's probably LQ4 but could be LQ9. LQ9 is worth a bit more if it's all stock. If it's been worked over with different internals then the price should be the same regardless of how it started its life.
Reply
Old Nov 29, 2018 | 05:55 PM
  #3  
plastic orange's Avatar
Staging Lane
15 Year Member
 
Joined: Jan 2008
Posts: 59
Likes: 3
From: Broughty Ferry Scotland
Default

Looks like an LQ4, same as I've got in my 53 Belair.

Pete
Reply
Old Nov 30, 2018 | 01:49 PM
  #4  
Che70velle's Avatar
ModSquad
10 Year Member
Community Builder
Liked
Loved
iTrader: (6)
 
Joined: Jan 2012
Posts: 7,832
Likes: 5,177
From: Dawsonville Ga.
Default

Tell us what heads are on it. There is a 3 digit number in the front or rear corner of the head, up by the valve cover. Could be a LY6, or L76? The number will likely be 317, or 823. The truck engines all look the same. Tell us what heads, and you’ll know what it is.
Reply
Old Nov 30, 2018 | 02:07 PM
  #5  
andyfanshawe's Avatar
Thread Starter
Registered User
 
Joined: Nov 2018
Posts: 3
Likes: 0
Default

Originally Posted by plastic orange
Looks like an LQ4, same as I've got in my 53 Belair.

Pete
Thank you Pete.
Reply
Old Nov 30, 2018 | 02:09 PM
  #6  
andyfanshawe's Avatar
Thread Starter
Registered User
 
Joined: Nov 2018
Posts: 3
Likes: 0
Default

Originally Posted by Che70velle
Tell us what heads are on it. There is a 3 digit number in the front or rear corner of the head, up by the valve cover. Could be a LY6, or L76? The number will likely be 317, or 823. The truck engines all look the same. Tell us what heads, and you’ll know what it is.
Hi Scott.
Brilliant advice. I will do that tomorrow if I can. Give me a day or two to report back.
Thank you.
Andy.
Reply
Old Nov 30, 2018 | 02:30 PM
  #7  
JoeNova's Avatar
Restricted User
 
Joined: Mar 2014
Posts: 7,192
Likes: 109
From: Ohio
Default

Its not an LQ4 or LQ9. Intake manifold is a dead giveaway that its a gen 4 engine, which is neither of those.

Would need slightly better pics of block, intake manifold, and timing cover from other angle to determine without any casting numbers.

Its a dead ringer for an LY6. Would need to see that timing cover to be sure.
Reply
Old Nov 30, 2018 | 03:53 PM
  #8  
bammax's Avatar
TECH Resident
 
Joined: Jul 2007
Posts: 967
Likes: 53
From: Winter Haven FL
Default

Originally Posted by JoeNova
Its not an LQ4 or LQ9. Intake manifold is a dead giveaway that its a gen 4 engine, which is neither of those.

Would need slightly better pics of block, intake manifold, and timing cover from other angle to determine without any casting numbers.

Its a dead ringer for an LY6. Would need to see that timing cover to be sure.
Didn't even see that until you pointed it out. DBW throttle should have been obvious if I looked closer.

Here's all the specs and numbers for the LY6

https://www.onallcylinders.com/2018/03/29/ly6-engine-specs-performance-bore-stroke-cylinder-heads-cam-specs/
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

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

 Verdad Gallardo
story-1

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

 Pouria Savadkouei
story-2

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

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo




All times are GMT -5. The time now is 11:24 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