Gen III LS

Vehicles Equipped with Gen III LS Engines

Passenger Cars:

LS1 (5.7L)

    • 1997–2004 Chevrolet Corvette (C5)
    • 1998–2002 Chevrolet Camaro SS / Z28
    • 1998–2002 Pontiac Firebird Trans Am / Formula
    • 2004 Pontiac GTO

LS6 (5.7L) (High-performance variant of LS1)

    • 2001–2004 Chevrolet Corvette Z06 (C5)
    • 2004 Cadillac CTS-V

Trucks and SUVs:

LM7 (5.3L Iron Block)

    • 1999–2007 Chevrolet Silverado 1500 / Suburban 1500
    • 1999–2007 GMC Sierra 1500 / Yukon 1500
    • 2002–2007 Chevrolet Avalanche

L59 (5.3L Flex-Fuel)

    • 2002–2007 Chevrolet Tahoe / Suburban
    • 2002–2007 GMC Yukon / Yukon XL

LM4 (5.3L Aluminum Block)

    • 2003–2004 Chevrolet Trailblazer EXT
    • 2003–2004 GMC Envoy XL
    • 2004 Chevrolet SSR

LQ4 (6.0L Iron Block)

    • 1999–2007 Chevrolet Silverado 2500 HD / Suburban 2500
    • 1999–2007 GMC Sierra 2500 HD / Yukon XL 2500

LQ9 (6.0L High-Output)

    • 2002–2006 Cadillac Escalade
    • 2003–2007 Chevrolet Silverado SS
    • 2003–2006 GMC Sierra Denali

Summary of Key Features Across Gen III Engines:

  • Introduced in 1997 and replaced by Gen IV starting in 2005.
  • Found in a variety of performance cars, trucks, and SUVs.

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