LS1TECH - Camaro and Firebird Forum Discussion

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

Oddball block

Thread Tools
 
Search this Thread
 
Old Sep 20, 2021 | 01:42 AM
Share
  #1  
BigEd_72455's Avatar
BigEd_72455
Thread Starter
TECH Fanatic
10 Year Member
iTrader: (7)
 
Joined: Mar 2013
Posts: 1,506
Likes: 11
From: Arkansas
Exclamation Oddball block
Which one do I actually have?? Gen 3 or Gen 4?

Aluminum block, 5.3L, rear cam sensor, gen 4 rods, gen 4 head bolts, 24x crank.

Pics attached...




Reply
0
Old Sep 20, 2021 | 08:24 AM
Share
  #2  
Sodak66's Avatar
Sodak66
Teching In
5 Year Member
 
Joined: Apr 2017
Posts: 47
Likes: 11
Default
Gen III
Reply
0
Old Sep 20, 2021 | 08:42 AM
Share
  #3  
BigEd_72455's Avatar
BigEd_72455
Thread Starter
TECH Fanatic
10 Year Member
iTrader: (7)
 
Joined: Mar 2013
Posts: 1,506
Likes: 11
From: Arkansas
Default
Originally Posted by Sodak66
Gen III
can you explain or are you guessing?
Reply
0
Old Sep 20, 2021 | 09:19 AM
Share
  #4  
psicko's Avatar
psicko
On The Tree
 
Joined: Jun 2019
Posts: 184
Likes: 66
From: HTown, Texas
Default
Originally Posted by BigEd_72455
Which one do I actually have?? Gen 3 or Gen 4?

Aluminum block, 5.3L, rear cam sensor, gen 4 rods, gen 4 head bolts, 24x crank.

Pics attached...
If you're ordering head bolts, it's a Gen IV. If you're ordering a cam, crank, or knock sensors, it's a Gen III. If you just want to know what to call it so you can sleep better at night, it's a gen 3.5.
Reply
1
Old Sep 20, 2021 | 09:26 AM
Share
  #5  
BigEd_72455's Avatar
BigEd_72455
Thread Starter
TECH Fanatic
10 Year Member
iTrader: (7)
 
Joined: Mar 2013
Posts: 1,506
Likes: 11
From: Arkansas
Default
Originally Posted by psicko
If you're ordering head bolts, it's a Gen IV. If you're ordering a cam, crank, or knock sensors, it's a Gen III. If you just want to know what to call it so you can sleep better at night, it's a gen 3.5.

I really need a definitive answer of 3 or 4 and the date code explained.

Reason being is Darton does not make sleeves for a Gen3 anymore (discontinued), but they do a Gen IV.

I can't tell what difference it would make when sleeving a block, but apparently something is different.
Reply
0
Old Sep 20, 2021 | 09:45 AM
Share
  #6  
Sodak66's Avatar
Sodak66
Teching In
5 Year Member
 
Joined: Apr 2017
Posts: 47
Likes: 11
Default
For that purpose its a Gen III block. No we are not guessing its very easy to tell from looking at it. A quick google search would give you all the info you need. good luck with your build.
Reply
1
Old Sep 20, 2021 | 10:17 AM
Share
  #7  
psicko's Avatar
psicko
On The Tree
 
Joined: Jun 2019
Posts: 184
Likes: 66
From: HTown, Texas
Default
Originally Posted by BigEd_72455
I really need a definitive answer of 3 or 4 and the date code explained.

Reason being is Darton does not make sleeves for a Gen3 anymore (discontinued), but they do a Gen IV.

I can't tell what difference it would make when sleeving a block, but apparently something is different.
Steve @ Race Engine Development would be the guy you need to talk to in that regard.
Reply
0

Trending Topics

Old Sep 20, 2021 | 10:23 AM
Share
  #8  
G Atsma's Avatar
G Atsma
TECH Senior Member
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2016
Posts: 22,291
Likes: 3,615
From: Central Cal.
Default
The valley knock sensor location is the dead giveaway here. NO Gen IV's came that way. Gen III it is....
Reply
0
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
Old Sep 20, 2021 | 11:42 AM
Share
  #9  
RonSSNova's Avatar
RonSSNova
8 Second Club
10 Year Member
Photogenic
Photoriffic
Top Answer: 1
iTrader: (3)
 
Joined: Aug 2011
Posts: 4,729
Likes: 814
From: Portland, OR
Default
That is an L33. 05-07

There was an LM4 alum engine from that era that was pure gen 3 with the longer head bolts. It was otherwise identical to its iron counterpart the LM7

GM did odd combos before switching to the Gen 4 in 2008 I believe.
Reply
1
Back to Subforum
Generation III Internal Engine
View Next Unread
BTR Stage 3 vs BTR Stage 4 cam???




Advanced Search

All times are GMT -5. The time now is 06:59 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