LS Engines / LT Engines / Tech

LS and LT Engine Reference Guide for the Gen. 3, Gen. 4 & Gen. 5 LS/LT, Vortec/EcoTec3 Engines

2014-LT1-CorvetteV8

Introduced in the 2014 C7 Corvette, the all-new LT engine series is the latest iteration of the GM V8. (Image/GM Corporate Newsroom)

Though the dozens of engines in the GM LS and LT families have many similarities, there are significant differences as well—and it’s important to know exactly what those are if you’re upgrading your LS or LT engine for more performance, or planning an LS or LT engine swap.

We’re trying to clear up some confusion between the dozens of engines that fall into the LS/LT engine families with Spec Guides, Spotter’s Guides, and Upgrade Guides on the LS and LT motors.

To make it easier to quickly distinguish key differences/similarities between each LT and LS engine, Summit Racing created a handy .PDF that you can use as a quick reference guide. You can download it in the link below, or keep scrolling down to the tables at the bottom of this story.

Click Here to View/Print/Download the Summit Racing LS & LT Engine Reference Guide,

Want more LS/LT information? Click here for LS Engine Content and here for LT Engine Content.

(Summit Racing’s Brian Nutter contributed to this article.)

Gen. 3/4/5 LS/LT and Vortec/EcoTec3 Guides

Gen. III LS & Vortec Engine Quick Reference Guide

Generation IIILiterCodeVehicleCam BoltsReluctorVVTAFMFlex FuelVIN
(8th Digit)
BlockHead
1999-064.8LR4Truck/SUV324xNoNoNoVIronCathedral
2003-055.3LM4SUV324xNoNoNoPAlum.Cathedral
1999-075.3LM7Truck/SUV324xNoNoNoTIronCathedral
2002-075.3L59Truck/SUV324xNoNoYesZIronCathedral
2005-075.3L33Truck324xNoNoNoBAlum.Cathedral
1997-045.7LS1F-Body, C5, GTO324xNoNoNoGAlum.Cathedral
2001-055.7LS6C5 Z06, CTS-V324xNoNoNoSAlum.Cathedral
1999-076.0LQ4Truck324xNoNoNoUIronCathedral
2002-076.0LQ9Truck324xNoNoNoNIronCathedral

 

Gen. IV LS & Vortec Engine Quick Reference Guide

Generation IVLiterCodeVehicleCam BoltsReluctorVVTAFMFlex FuelVIN (8th Digit)BlockHead
2010-174.8L20Truck/Van158x/4xYesNoYesAIronCathedral
2007-094.8LY2Truck158x/4xNoNoNoCIronCathedral
2007-095.3LY5Truck/SUV158x/4xNoYesNoJIronCathedral
2007-115.3LC9Truck/SUV158x/4x2010+YesYes3Alum.Cathedral
2005-065.3LH6SUV324x/1xNoYesNoMAlum.Cathedral
2007-095.3LH6SUV158x/4xNoYesNoMAlum.Cathedral
2008-095.3LH8Truck/SUV158x/4xNoNoNoLAlum.Cathedral
2010-125.3LH9Truck158x/4xYesNoYesPAlum.Cathedral
2010-145.3LMFVan158x/4xYesNoYes4IronCathedral
2007-145.3LMGTruck/SUV158x/4x2010+YesYesOIronCathedral
2005-065.3LS4FWD Car358x/4xNoYesNoCAlum.Cathedral
2007-095.3LS4FWD Car158x/4xNoYesNoCAlum.Cathedral
20056.0LS2Corvette358x/4xNoNoNoUAlum.Cathedral
2005-066.0LS2GTO358x/4xNoNoNoUAlum.Cathedral
20066.0LS2Corvette, CTS-V358x/4xNoNoNoUAlum.Cathedral
20076.0LS2Corvette, CTS-V158x/4xNoNoNoUAlum.Cathedral
2005-066.0LS2SSR. TBSS324x/1xNoNoNoHAlum.Cathedral
2007-096.0LS2TBSS, 9-7X Aero158X/4XNoNoNoHAlum.Cathedral
2008-096.0L76G8158X/4XNoYesNoYAlum.Rectangle
2006-106.0L76Holden VZ2, VE1158X/4XNo2009+NoYAlum.Rectangle
2007-096.0L76Truck/SUB158X/4XYesYesNoYAlum.Rectangle
2011-176.0L77Caprice PPV158X/4XNoYesYes2Alum.Rectangle
2011-156.0L77Holden VE2, VF158X/4XNoYesYesAlum.Rectangle
2010-176.0L96Truck/SUV/Van158X/4XYesNoYesGIronRectangle
2007-086.0L98Holden158X/4XNoNoNoAlum.Rectangle
2011-166.0LC8CNG Fuel158X/4XYesNoNoBIronRectangle
2008-096.0LFAHybrid Truck/SUV158X/4XYesYesNo5Alum.Cathedral
2007-146.0LY6Truck/SUV/Van158X/4XYesNoNoK/NIronRectangle
2010-136.0LZ1Hybrid Truck/SUV158X/4XYesYesYesJAlum.Cathedral
2007-086.2L92SUV158X/4XYesNoNo8Alum.Rectangle
2010-146.2L92SUV158X/4XYesYesYesFAlum.Rectangle
2010-156.2L99Camaro (auto)158X/4XYesYesNoJAlum.Rectangle
2009-146.2L9HTruck/SUV158X/4XYesNoYes2Alum.Rectangle
2008-176.2LS3Performance Cars158X/4XNoNoNoWAlum.Rectangle
2010-136.2LS3C6 Grand Sport358X/4XNoNoNoWAlum.Rectangle
2008-156.2LSACTS-V, 5th Gen. ZL-1158X/4XNoNoNoPAlum.Rectangle
2009-136.2LS9Corvette ZR-1358X/4XNoNoNoTAlum.Rectangle
2006-157.0LS7C6 Z06, Camaro Z/28358X/4XNoNoNoEAlum.Square

 

Gen. V LT & EcoTec3 Engine Quick Reference Guide

Generation VLiterCodeVehicleCam BoltReluctorVVTAFMFlex FuelVIN (8th Digit)BlockHead
2014+5.3L83Truck158x/4xYesYesYesCAlum.Direct Injection
2014+5.3L8BTruck Hybrid E-Assist158x/4xYesYesYesRAlum.Direct Injection
2014+6.2LT1Camaro, Corvette158x/4xYesYesNo7Alum.Direct Injection
2014+6.2L86Truck158x/4xYesYesNoJAlum.Direct Injection
2014+6.2LT4Corvette Z06158x/4xYesYesNo6Alum.Direct Injection
2014+6.2LT4Camaro ZL1 (manual)158x/4xYesNoNo6Alum.Direct Injection
2018+6.2LT5Corvette ZR1158x/4xYesNoNo9Alum.Direct Injection
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2 Comments

  1. I’m looking for the L9H 6.2 L truck engine upgrades and modifications report

  2. Pingback: All the Torques: How Summit Pro LS Truck Camshafts Help Truck Owners Maximize Performance

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