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LS/LT Performance

LT/LS Performance Parts & Engines

Upgrading your LT & LS engine with performance parts is a great way to add horsepower and performance for your vehicle. JEGS offers a wide selection of LT & LS engine parts for sale from top manufacturers such as Hooker Headers, Chevrolet Performance, Edelbrock, Holley, Painless Performance Products, JEGS, and more. Each LT & LS performance engine part is made from high quality components and assembly so you can get the performance you want at a price you can afford with the assurance you need.

The Benefits Of Buying LT & LS Performance Parts

There are many benefits to buying LT & LS performance parts. When properly matched, the result will be increased power and performance for your vehicle. It is important to understand the LT & LS parts as well as their functions to make this possible. JEGS offers LT & LS engine parts online and with over 60 years in the business, JEGS is the LT & LS engine accessories superstore.

Customer Questions About LT & LS Performance Parts

Buying quality LT & LS performance products can be overwhelming and confusing. There are many different factors to consider when shopping for LS & LT engines and performance parts including different brands, prices, warranties, performance capabilities, and much more. Because LT & LS performance engines and parts can often be a significant investment, it is important to do your research and get all your questions answered prior to making a final purchase. If you are trying to learn more about LT & high performance LS engines and parts, we can help you along the way. Here are some answers to frequently asked questions about LT & LS engines performance parts:

How To Identify LS Engines

If you have access to the VIN number of the vehicle the engine belongs to, the 8th digit along with the year of the vehicle can confirm which engine you have. If you do not have access to the VIN number, you will need to narrow down the answer based on external LS engine parts:

  • Timing Cover: if the cover is plain, the engine is GEN III. If it has a sensor(s) on it, it is GEN IV.
  • Cylinder Heads: confirm if the cylinder heads are cast iron or aluminum by checking with a magnet as it will stick to cast iron and not aluminum.
  • Engine block: confirm the block is either cast iron or aluminum with a magnet as it will not stick to aluminum but will stick to cast iron.
  • Markings on engine block: check on the engine block below the cylinder head at the front or back for casting numbers which may include the engine size in liters.
  • Markings on cylinder heads: confirm the casting number on a cylinder head to confirm which engines it was designed to fit.
  • Throttle Body Control: If the throttle body is controlled by a cable, it is a GEN III, if it is drive-by-wire, it could be GEN III or GEN IV.
  • Intake Manifold: If the manifold has ribbing on the top and is rectangular and boxy in shape, the intake is from a truck. If the manifold is low with smooth rounded runners and no ribbing, it is from a car.
  • 4.8L and 5.3L pistons: use a borescope to confirm if the pistons are flat top (on 4.8 liter engines) or dished (5.3 engines).
  • Oil Pan: most truck oil pans have a deeper sump than car oil pans.
  • Reluctor wheel for crankshaft sensor (located inside the block at the rear of the crankshaft; sensor located near starter): GEN III have 24 teeth with a visible exterior black crankshaft sensor connector, while GEN IV have 58 teeth with a visible exterior grey crankshaft sensor connector
  • What Cars Have LS Engines?

    The following cars originally had a LS engine option:

  • 2008-2009 Buick LaCrosse Super
  • 2004-2015 Cadillac CTS-V
  • 1998-2002 Chevrolet Camaro Z28 / SS
  • 2010-2015 Chevrolet Camaro SS / ZL1 / Z/28
  • 2011-2017 Chevrolet Caprice Police Pursuit Vehicles
  • 1997-2013 Chevrolet Corvette / Z06 / ZR1 / 427
  • 2006-2009 Chevrolet Impala SS
  • 2006-2007 Chevrolet Monte Carlo SS
  • 2014-2017 Chevrolet SS
  • 1998-2002 Pontiac Firebird Formula, Trans Am
  • 2004-2006 Pontiac GTO
  • 2005-2008 Pontiac Grand Prix GXP
  • 2008-2009 Pontiac G8 GT / GXP
  • Which LS Engines Are Aluminum?

    The following LS engines were manufactured with an aluminum long block (with aluminum block and cylinder heads):

  • LM4 / 5.3 Liter-VIN P, 2003-2005
  • L33 / 5.3 Liter-VIN B, 2005-2007
  • LH6 / 5.3 Liter-VIN M, 2005-2009
  • LS4 / 5.3 Liter-VIN C, 2005-2009
  • LC9 / 5.3 Liter-VIN 3 or 7, 2007-2014
  • LH8 / 5.3 Liter-VIN L, 2008-2009
  • LH9 / 5.3 Liter-VIN P, 2010-2012
  • LS1 / 5.7 Liter-VIN G, 1997-2004
  • LS6 / 5.7 Liter-VIN S, 2001-2005
  • LS2 / 6.0 Liter-VIN H, 2005 -2009
  • L76 / 6.0 Liter-VIN Y, 2007-2009
  • LFA / 6.0 Liter-VIN 5, 2008-2009
  • LZ1 / 6.0 Liter-VIN J, 2010-2013
  • L77 / 6.0 Liter-VIN 2, 2011-2017
  • L92 / 6.2 Liter-VIN 8, 2007-2013
  • LS3 / 6.2 Liter-VIN W, 2008-2017
  • LS9 / 6.2 Liter-VIN T, 2009-2013
  • LSA / 6.2 Liter-VIN P, 2009-2015
  • L99 / 6.2 Liter-VIN J, 2010-2015
  • LS7 / 7.0 Liter-VIN E, 2006-2015
  • Can't Find The LT & LS Performance Parts You Are Looking For?

    A JEGS expert is ready to answer your questions and help you find the LT & LS performance parts or crate engine that you require for your specific application.