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{{DISPLAYTITLE:Generation III "LS1" Small Block Chevy (1997-2008)}}
{{DISPLAYTITLE:Generation III "LS1" Small Block Chevy (1997-2008)}}
This Model is part of the [[Small Block Chevy V8]] Family of Engines.
This Model is part of the [[SBC|Small Block Chevy V8]] Family of Engines.


[[SBC Gen III PCMs]]
This page is intended to aid in the understanding of the entire Gen III Lineup of engines, and as a guide when attempting to find one in a junkyard. 
 
It outlines all of the engines in Chevy's generation 3, both by displacement and year by year. It aims to aid in finding an engine from a junkyard, identifying specific engine models, or teaching the history of Gen 3. For more details about engines, see that engines specific page.
 
== Components ==
 
* [[SBC3 PCMs|Powertrain Control Modules (PCMs)]]
* [[SBC3 Cams|Cam Shafts]]
* [[SBC3 Heads|Cylinder Heads]]
* Transmissions
* Oil Filters
* Starters
* Spark Plugs
* Coils
* Fuel Injectors
* Flex Fuel
* Intake Manifolds and Throttle Bodies
 
== By Displacement ==
The Gen III Lineup consists of nine total engine models, four of which feature an aluminum block (the rest being cast iron).
 
=== 4.8L (293ci) ===
{| class="wikitable"
![[SBC3 LR4|LR4 "Vortec 4800"]]
|-
|Iron Block
|-
|1999-2007 - Vin V
|-
|
* '99-'07 Silverado 1500
* '00-'06 Tahoe
* '03-'07 Express 2500/3500
|}
 
=== 5.3L (325ci) ===
{| class="wikitable"
![[SBC3 LM7|LM7 "Vortec 5300"]]
![[SBC3 L59|L59 "Vortec 5300 (Flex Fuel)"]]
![[SBC3 LM4|LM4 "Vortec 5300"]]
![[SBC3 L33|L33 "Vortec 5300 HO"]]
|-
|Iron Block
|Iron Block
|<u>Aluminum Block</u>
|<u>Aluminum Block</u>
|-
|1999-2007 - Vin T
|2002-2007 - Vin Z
|2003-2005 - Vin P
|2005-2007 - Vin B
|-
|
*99-'07_Silverado_1500
*'99-'00 Silverado 2500
* '00-'06 Suburban 1500
* '00-'06 Tahoe
* '03-'07 Express 1500/2500
* '02-'06 Avalanche 1500
* '02-'05 Escalade 2WD
|
*'02-'07 Silverado 1500
* '02-'06 Suburban 1500
* '02-'06 Tahoe
* '05-'06 Avalanche 1500
|
* '03-'05 Trailblazer EXT
* '03-'04 SSR
* '04-'04 GMC Envoy XL/XUV
* '04-'04 Buick Rainier
* '03-'04 Isuzu Ascender
|
* '05-'07 Silverado 1500 4WD
|}
 
=== 5.7L (346ci) ===
{| class="wikitable"
|+
![[SBC3 LS1|LS1]]
![[SBC3 LS6|LS6]]
|-
|<u>Aluminum Block</u>
|<u>Aluminum Block</u>
|-
|1997-2005 - Vin G
|2002-2007 - Vin S
|-
|
* '97-'04 Corvette
* '98-'02 Firebird
* '98-'02 Camaro Z28/SS
* '04-'04 GTO
*
|
* '01-'04 Corvette Z06
* '04-'05 Cadillac CTS-V
|}
 
=== 6.0L (364ci) ===
{| class="wikitable"
|+
![[SBC3 LQ4|LQ4 "Vortec 6000"]]
![[SBC3 LQ9|LQ9 - "Vortec HO 6000/VortecMAX"]]
|-
|Iron Block
|Iron Block
|-
|1999-2007 - Vin U
|2002-2007 - Vin N
|-
|
* '99-'07 Silverado 1500HD-3500
* '00-'06 Suburban 1500LTZ/2500
* '02-'07 Hummer H2
* '03-'07 Express 2500/3500
* '03-'08 W-Series
|
* '02-'06 Escalade AWD/EXT
* '03-'06 Escalade ESV
* '05-'06 Escalade 2WD
* '03-'07 Silverado SS/HO/VortecMAX
* '05-'06 Sierra Denali
|}
 
 
== By Model Year ==
<nowiki>*</nowiki> Denotes New Addition
 
=== 1997 ===
 
===== Aluminum Block =====
{| class="wikitable"
!*LS1
|-
|5.7L (346ci)
|-
|
* Corvette
|}
 
 
=== 1998 ===
 
===== Aluminum Block =====
{| class="wikitable"
!LS1
|-
|5.7L (346ci)
|-
|
* Corvette
* Camaro
* Firebird
|}
 
 
=== 1999 ===
 
===== Aluminum Block =====
{| class="wikitable"
!LS1
|-
|5.7L (346ci)
|-
|
* Corvette
* Camaro
* Firebird
|}
 
===== Iron Block =====
{| class="wikitable"
!*LR4
!*LM7
!*LQ4
|-
|4.8L (293ci)
|5.3L (325ci)
|6.0L (364ci)
|-
|
* Silverado 1500/2500
|
* Silverado 1500/2500
|
* Silverado HD
|}
 
 
=== 2000 ===
 
===== Aluminum Block =====
{| class="wikitable"
!LS1
|-
|5.7L (346ci)
|-
|
* Corvette
* Camaro
* Firebird
|}
 
===== Iron Block =====
{| class="wikitable"
!LR4
!LM7
!LQ4
|-
|4.8L (293ci)
|5.3L (325ci)
|6.0L (364ci)
|-
|
* Silverado 1500/2500
* *Tahoe
|
* Silverado 1500/2500
* *Suburban 1500
* *Tahoe
|
* Silverado HD
* *Suburban 1500LTZ/2500
|}
 
 
=== 2001 ===
 
===== Aluminum Block =====
{| class="wikitable"
!LS1
!*LS6
|-
|5.7L (346ci)
|5.7L (346ci)
|-
|
* Corvette
* Camaro
* Firebird
|
* Corvette Z06
|}
 
===== Iron Block =====
{| class="wikitable"
!LR4
!LM7
!LQ4
|-
|4.8L (293ci)
|5.3L (325ci)
|6.0L (364ci)
|-
|
* Silverado 1500
* Tahoe
|
* Silverado 1500/2500
* Suburban 1500
* Tahoe
|
* Silverado *2500/HD
* Suburban 1500LTZ/2500
|}
 
 
=== 2002 ===
 
===== Aluminum Block =====
{| class="wikitable"
!LS1
!*LS6
|-
|5.7L (346ci)
|5.7L (346ci)
|-
|
* Corvette
* Camaro
* Firebird
|
* Corvette Z06
|}
 
===== Iron Block =====
{| class="wikitable"
!LR4
!LM7
!*L59
!LQ4
!*LQ9
|-
|4.8L (293ci)
|5.3L (325ci)
|5.3L (325ci)
|6.0L (364ci)
|6.0L (364ci)
|-
|
* Silverado 1500
* Tahoe
|
* Silverado 1500/2500
* Suburban 1500
* Tahoe
|
* Silverado 1500
* Suburban 1500
* Tahoe
|
* Silverado *2500/HD
* Suburban 1500LTZ/2500
|
* Escalade AWD/EXT
|}
 
 
=== 2003 ===
Aluminum Block 5.3 LM4 introduced for Trailblazer EXT and Chevrolet SSR, Silverado SS introduced with LQ9, Express gets LR4, LM7, and LQ4.
 
===== Aluminum Block =====
{| class="wikitable"
!*LM4
!LS1
!LS6
|-
|5.3L (325ci)
|5.7L (346ci)
|5.7L (346ci)
|-
|
* Trailblazer EXT
* Chevrolet SSR
* Isuzu Ascender
|
* Corvette
* Camaro
* Firebird
|
* Corvette Z06
|}
 
===== Iron Block =====
{| class="wikitable"
!LR4
!LM7
!L59
!LQ4
!*LQ9
|-
|4.8L (293ci)
|5.3L (325ci)
|5.3L (325ci)
|6.0L (364ci)
|6.0L (364ci)
|-
|
* Silverado 1500
* Tahoe
* *Express 2500/3500
|
* Silverado 1500/2500
* Suburban 1500
* Tahoe
* *Express 1500/2500
|
* Silverado 1500
* Suburban 1500
* Tahoe
|
* Silverado *2500/HD
* Suburban 1500LTZ/2500
* *Hummer H2
* *Express 2500/3500
* *W-Series
|
* Escalade AWD/EXT
* *Silverado SS/HO
|}
 
 
=== 2004 ===
GMC Envoy XL/XUV and Buick Rainier get LM4, Pontiac GTO Gets LS1, Cadillac CTS-V Gets LS6
 
==== Aluminum Block ====
{| class="wikitable"
!LM4
!LS1
!LS6
|-
|5.3L (325ci)
|5.7L (346ci)
|5.7L (346ci)
|-
|
* Trailblazer EXT
* Chevrolet SSR
* Isuzu Ascender
* *GMC Envoy XL/XUV
* *Buick Rainier
|
* Corvette
* Camaro
* Firebird
* *GTO
|
* Corvette Z06
* *Cadillac CTS-V
|}
 
==== Iron Block ====
{| class="wikitable"
!LR4
!LM7
!L59
!LQ4
!LQ9
|-
|4.8L (293ci)
|5.3L (325ci)
|5.3L (325ci)
|6.0L (364ci)
|6.0L (364ci)
|-
|
* Silverado 1500
* Tahoe
* Express 2500/3500
|
* Silverado 1500/2500
* Suburban 1500
* Tahoe
* Express 1500/2500
|
* Silverado 1500
* Suburban 1500
* Tahoe
|
* Silverado 2500/HD
* Suburban 1500LTZ/2500
* Hummer H2
* Express 2500/3500
* W-Series
|
* Escalade AWD/EXT
* Silverado SS/HO
|}
 
 
=== 2005 ===
Gen4 Debuts, Replaces LS1 and LM4 (Trailblazer EXT gets one more year of LM4). L33 Releases as the only Aluminum Truck Engine. Avalanche gets Flex Fuel. Sierra Denali gets LQ9
 
==== Aluminum Block ====
{| class="wikitable"
!LM4
!*L33
!<s>LS1</s>
!LS6
|-
|5.3L (325ci)
|5.3L (325ci)
|<s>5.7L (346ci)</s>
|5.7L (346ci)
|-
|
* Trailblazer EXT
|
* Silverado 1500 4WD
|Replaced By LS2
|
* Cadillac CTS-V
|}
 
==== Iron Block ====
{| class="wikitable"
!LR4
!LM7
!L59
!LQ4
!LQ9
|-
|4.8L (293ci)
|5.3L (325ci)
|5.3L (325ci)
|6.0L (364ci)
|6.0L (364ci)
|-
|
* Silverado 1500
* Tahoe
* Express 2500/3500
|
* Silverado 1500/2500
* Suburban 1500
* Tahoe
* Express 1500/2500
|
* Silverado 1500
* Suburban 1500
* Tahoe
* *Avalanche 1500
|
* Silverado 2500/HD
* Suburban 1500LTZ/2500
* Hummer H2
* Express 2500/3500
* W-Series
|
* Escalade AWD/EXT
* Silverado SS/HO
* *Sierra Denali
|}
 
 
=== 2006 ===
LS7 Replaces LS6, Silverado VortecMAX introduced. Escalade 2WD drops LM7.
 
==== Aluminum Block ====
{| class="wikitable"
!<s>LM4</s>
!L33
!<s>LS6</s>
|-
|<s>5.3L (325ci)</s>
|5.3L (325ci)
|<s>5.7L (346ci)</s>
|-
|Replaced by LH6
|
* Silverado 1500 4WD
|Replaced by LS7
|}
 
==== Iron Block ====
{| class="wikitable"
!LR4
!LM7
!L59
!LQ4
!LQ9
|-
|4.8L (293ci)
|5.3L (325ci)
|5.3L (325ci)
|6.0L (364ci)
|6.0L (364ci)
|-
|
* Silverado 1500
* Tahoe
* Express 2500/3500
|
* Silverado 1500/2500
* Suburban 1500
* Tahoe
* Express 1500/2500
|
* Silverado 1500
* Suburban 1500
* Tahoe
* *Avalanche 1500
|
* Silverado 2500/HD
* Suburban 1500LTZ/2500
* Hummer H2
* Express 2500/3500
* W-Series
|
* Escalade AWD/EXT
* Silverado VortecMAX
* Sierra Denali
|}
 
 
=== 2007 ===
Tahoe, Suburban, and Avalanche switch to Gen 4.
 
==== Aluminum Block ====
{| class="wikitable"
!L33
|-
|5.3L (325ci)
|-
|
* Silverado 1500 4WD
|}
 
==== Iron Block ====
{| class="wikitable"
!LR4
!LM7
!L59
!LQ4
!LQ9
|-
|4.8L (293ci)
|5.3L (325ci)
|5.3L (325ci)
|6.0L (364ci)
|6.0L (364ci)
|-
|
* Silverado 1500
* Express 2500/3500
|
* Silverado 1500/2500
* Express 1500/2500
|
* Silverado 1500
|
* Silverado 2500/HD
* Suburban 1500LTZ/2500
* Hummer H2
* Express 2500/3500
* W-Series
|
* Escalade AWD/EXT
* Silverado VortecMAX
* Sierra Denali
|}
 
 
=== 2008 ===
All Gen 3 Blocks cease production. Remaining stock is used up in W-Series.
 
==== Aluminum Block ====
{| class="wikitable"
!<s>L33</s>
|-
|<s>5.3L (325ci)</s>
|-
|Replaced by LC9
 
 
|}
 
==== Iron Block ====
{| class="wikitable"
!<s>LR4</s>
!<s>LM7</s>
!<s>L59</s>
!LQ4
!<s>LQ9</s>
|-
|<s>4.8L (293ci)</s>
|<s>5.3L (325ci)</s>
|<s>5.3L (325ci)</s>
|6.0L (364ci)
|<s>6.0L (364ci)</s>
|-
|Replaced by LY2
 
|Replaced by LY5
 
|Replaced by LMG
|
* W-Series
|Replaced by L92
|}
 
 
=== 2009 ===
All Gen 3 stock depleted.
 
==== Iron Block ====
{| class="wikitable"
!<s>LQ4</s>
|-
|<s>6.0L (364ci)</s>
|-
|Replaced by LY6
|}
 
 
 
 
 
 
 
 
 
 
 
.

Latest revision as of 00:25, 3 February 2026

This Model is part of the Small Block Chevy V8 Family of Engines.

This page is intended to aid in the understanding of the entire Gen III Lineup of engines, and as a guide when attempting to find one in a junkyard.

It outlines all of the engines in Chevy's generation 3, both by displacement and year by year. It aims to aid in finding an engine from a junkyard, identifying specific engine models, or teaching the history of Gen 3. For more details about engines, see that engines specific page.

Components

[edit | edit source]

By Displacement

[edit | edit source]

The Gen III Lineup consists of nine total engine models, four of which feature an aluminum block (the rest being cast iron).

4.8L (293ci)

[edit | edit source]
LR4 "Vortec 4800"
Iron Block
1999-2007 - Vin V
  • '99-'07 Silverado 1500
  • '00-'06 Tahoe
  • '03-'07 Express 2500/3500

5.3L (325ci)

[edit | edit source]
LM7 "Vortec 5300" L59 "Vortec 5300 (Flex Fuel)" LM4 "Vortec 5300" L33 "Vortec 5300 HO"
Iron Block Iron Block Aluminum Block Aluminum Block
1999-2007 - Vin T 2002-2007 - Vin Z 2003-2005 - Vin P 2005-2007 - Vin B
  • 99-'07_Silverado_1500
  • '99-'00 Silverado 2500
  • '00-'06 Suburban 1500
  • '00-'06 Tahoe
  • '03-'07 Express 1500/2500
  • '02-'06 Avalanche 1500
  • '02-'05 Escalade 2WD
  • '02-'07 Silverado 1500
  • '02-'06 Suburban 1500
  • '02-'06 Tahoe
  • '05-'06 Avalanche 1500
  • '03-'05 Trailblazer EXT
  • '03-'04 SSR
  • '04-'04 GMC Envoy XL/XUV
  • '04-'04 Buick Rainier
  • '03-'04 Isuzu Ascender
  • '05-'07 Silverado 1500 4WD

5.7L (346ci)

[edit | edit source]
LS1 LS6
Aluminum Block Aluminum Block
1997-2005 - Vin G 2002-2007 - Vin S
  • '97-'04 Corvette
  • '98-'02 Firebird
  • '98-'02 Camaro Z28/SS
  • '04-'04 GTO
  • '01-'04 Corvette Z06
  • '04-'05 Cadillac CTS-V

6.0L (364ci)

[edit | edit source]
LQ4 "Vortec 6000" LQ9 - "Vortec HO 6000/VortecMAX"
Iron Block Iron Block
1999-2007 - Vin U 2002-2007 - Vin N
  • '99-'07 Silverado 1500HD-3500
  • '00-'06 Suburban 1500LTZ/2500
  • '02-'07 Hummer H2
  • '03-'07 Express 2500/3500
  • '03-'08 W-Series
  • '02-'06 Escalade AWD/EXT
  • '03-'06 Escalade ESV
  • '05-'06 Escalade 2WD
  • '03-'07 Silverado SS/HO/VortecMAX
  • '05-'06 Sierra Denali


By Model Year

[edit | edit source]

* Denotes New Addition

1997

[edit | edit source]
Aluminum Block
[edit | edit source]
*LS1
5.7L (346ci)
  • Corvette


1998

[edit | edit source]
Aluminum Block
[edit | edit source]
LS1
5.7L (346ci)
  • Corvette
  • Camaro
  • Firebird


1999

[edit | edit source]
Aluminum Block
[edit | edit source]
LS1
5.7L (346ci)
  • Corvette
  • Camaro
  • Firebird
Iron Block
[edit | edit source]
*LR4 *LM7 *LQ4
4.8L (293ci) 5.3L (325ci) 6.0L (364ci)
  • Silverado 1500/2500
  • Silverado 1500/2500
  • Silverado HD


2000

[edit | edit source]
Aluminum Block
[edit | edit source]
LS1
5.7L (346ci)
  • Corvette
  • Camaro
  • Firebird
Iron Block
[edit | edit source]
LR4 LM7 LQ4
4.8L (293ci) 5.3L (325ci) 6.0L (364ci)
  • Silverado 1500/2500
  • *Tahoe
  • Silverado 1500/2500
  • *Suburban 1500
  • *Tahoe
  • Silverado HD
  • *Suburban 1500LTZ/2500


2001

[edit | edit source]
Aluminum Block
[edit | edit source]
LS1 *LS6
5.7L (346ci) 5.7L (346ci)
  • Corvette
  • Camaro
  • Firebird
  • Corvette Z06
Iron Block
[edit | edit source]
LR4 LM7 LQ4
4.8L (293ci) 5.3L (325ci) 6.0L (364ci)
  • Silverado 1500
  • Tahoe
  • Silverado 1500/2500
  • Suburban 1500
  • Tahoe
  • Silverado *2500/HD
  • Suburban 1500LTZ/2500


2002

[edit | edit source]
Aluminum Block
[edit | edit source]
LS1 *LS6
5.7L (346ci) 5.7L (346ci)
  • Corvette
  • Camaro
  • Firebird
  • Corvette Z06
Iron Block
[edit | edit source]
LR4 LM7 *L59 LQ4 *LQ9
4.8L (293ci) 5.3L (325ci) 5.3L (325ci) 6.0L (364ci) 6.0L (364ci)
  • Silverado 1500
  • Tahoe
  • Silverado 1500/2500
  • Suburban 1500
  • Tahoe
  • Silverado 1500
  • Suburban 1500
  • Tahoe
  • Silverado *2500/HD
  • Suburban 1500LTZ/2500
  • Escalade AWD/EXT


2003

[edit | edit source]

Aluminum Block 5.3 LM4 introduced for Trailblazer EXT and Chevrolet SSR, Silverado SS introduced with LQ9, Express gets LR4, LM7, and LQ4.

Aluminum Block
[edit | edit source]
*LM4 LS1 LS6
5.3L (325ci) 5.7L (346ci) 5.7L (346ci)
  • Trailblazer EXT
  • Chevrolet SSR
  • Isuzu Ascender
  • Corvette
  • Camaro
  • Firebird
  • Corvette Z06
Iron Block
[edit | edit source]
LR4 LM7 L59 LQ4 *LQ9
4.8L (293ci) 5.3L (325ci) 5.3L (325ci) 6.0L (364ci) 6.0L (364ci)
  • Silverado 1500
  • Tahoe
  • *Express 2500/3500
  • Silverado 1500/2500
  • Suburban 1500
  • Tahoe
  • *Express 1500/2500
  • Silverado 1500
  • Suburban 1500
  • Tahoe
  • Silverado *2500/HD
  • Suburban 1500LTZ/2500
  • *Hummer H2
  • *Express 2500/3500
  • *W-Series
  • Escalade AWD/EXT
  • *Silverado SS/HO


2004

[edit | edit source]

GMC Envoy XL/XUV and Buick Rainier get LM4, Pontiac GTO Gets LS1, Cadillac CTS-V Gets LS6

Aluminum Block

[edit | edit source]
LM4 LS1 LS6
5.3L (325ci) 5.7L (346ci) 5.7L (346ci)
  • Trailblazer EXT
  • Chevrolet SSR
  • Isuzu Ascender
  • *GMC Envoy XL/XUV
  • *Buick Rainier
  • Corvette
  • Camaro
  • Firebird
  • *GTO
  • Corvette Z06
  • *Cadillac CTS-V

Iron Block

[edit | edit source]
LR4 LM7 L59 LQ4 LQ9
4.8L (293ci) 5.3L (325ci) 5.3L (325ci) 6.0L (364ci) 6.0L (364ci)
  • Silverado 1500
  • Tahoe
  • Express 2500/3500
  • Silverado 1500/2500
  • Suburban 1500
  • Tahoe
  • Express 1500/2500
  • Silverado 1500
  • Suburban 1500
  • Tahoe
  • Silverado 2500/HD
  • Suburban 1500LTZ/2500
  • Hummer H2
  • Express 2500/3500
  • W-Series
  • Escalade AWD/EXT
  • Silverado SS/HO


2005

[edit | edit source]

Gen4 Debuts, Replaces LS1 and LM4 (Trailblazer EXT gets one more year of LM4). L33 Releases as the only Aluminum Truck Engine. Avalanche gets Flex Fuel. Sierra Denali gets LQ9

Aluminum Block

[edit | edit source]
LM4 *L33 LS1 LS6
5.3L (325ci) 5.3L (325ci) 5.7L (346ci) 5.7L (346ci)
  • Trailblazer EXT
  • Silverado 1500 4WD
 Replaced By LS2
  • Cadillac CTS-V

Iron Block

[edit | edit source]
LR4 LM7 L59 LQ4 LQ9
4.8L (293ci) 5.3L (325ci) 5.3L (325ci) 6.0L (364ci) 6.0L (364ci)
  • Silverado 1500
  • Tahoe
  • Express 2500/3500
  • Silverado 1500/2500
  • Suburban 1500
  • Tahoe
  • Express 1500/2500
  • Silverado 1500
  • Suburban 1500
  • Tahoe
  • *Avalanche 1500
  • Silverado 2500/HD
  • Suburban 1500LTZ/2500
  • Hummer H2
  • Express 2500/3500
  • W-Series
  • Escalade AWD/EXT
  • Silverado SS/HO
  • *Sierra Denali


2006

[edit | edit source]

LS7 Replaces LS6, Silverado VortecMAX introduced. Escalade 2WD drops LM7.

Aluminum Block

[edit | edit source]
LM4 L33 LS6
5.3L (325ci) 5.3L (325ci) 5.7L (346ci)
Replaced by LH6
  • Silverado 1500 4WD
 Replaced by LS7

Iron Block

[edit | edit source]
LR4 LM7 L59 LQ4 LQ9
4.8L (293ci) 5.3L (325ci) 5.3L (325ci) 6.0L (364ci) 6.0L (364ci)
  • Silverado 1500
  • Tahoe
  • Express 2500/3500
  • Silverado 1500/2500
  • Suburban 1500
  • Tahoe
  • Express 1500/2500
  • Silverado 1500
  • Suburban 1500
  • Tahoe
  • *Avalanche 1500
  • Silverado 2500/HD
  • Suburban 1500LTZ/2500
  • Hummer H2
  • Express 2500/3500
  • W-Series
  • Escalade AWD/EXT
  • Silverado VortecMAX
  • Sierra Denali


2007

[edit | edit source]

Tahoe, Suburban, and Avalanche switch to Gen 4.

Aluminum Block

[edit | edit source]
L33
5.3L (325ci)
  • Silverado 1500 4WD

Iron Block

[edit | edit source]
LR4 LM7 L59 LQ4 LQ9
4.8L (293ci) 5.3L (325ci) 5.3L (325ci) 6.0L (364ci) 6.0L (364ci)
  • Silverado 1500
  • Express 2500/3500
  • Silverado 1500/2500
  • Express 1500/2500
  • Silverado 1500
  • Silverado 2500/HD
  • Suburban 1500LTZ/2500
  • Hummer H2
  • Express 2500/3500
  • W-Series
  • Escalade AWD/EXT
  • Silverado VortecMAX
  • Sierra Denali


2008

[edit | edit source]

All Gen 3 Blocks cease production. Remaining stock is used up in W-Series.

Aluminum Block

[edit | edit source]
L33
5.3L (325ci)
Replaced by LC9


Iron Block

[edit | edit source]
LR4 LM7 L59 LQ4 LQ9
4.8L (293ci) 5.3L (325ci) 5.3L (325ci) 6.0L (364ci) 6.0L (364ci)
Replaced by LY2 Replaced by LY5 Replaced by LMG
  • W-Series
 Replaced by L92


2009

[edit | edit source]

All Gen 3 stock depleted.

Iron Block

[edit | edit source]
LQ4
6.0L (364ci)
Replaced by LY6






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