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What engine is in my 2004 Chevy Silverado?

The engine in your 2004 Chevy Silverado is likely a Vortec 4.8L V8 engine. This was one of the standard engine options for the Silverado in that model year.


Detailed Engine Information for the 2004 Chevy Silverado


The 2004 Chevy Silverado was available with several different engine options, but the most common was the Vortec 4.8L V8 engine. This engine had the following key specifications:



  • Displacement: 4.8 liters (293 cubic inches)

  • Configuration: V8 cylinder layout

  • Horsepower: 285 hp @ 5,600 rpm

  • Torque: 295 lb-ft @ 4,400 rpm

  • Fuel system: Sequential fuel injection

  • Valvetrain: Overhead valve (OHV) with variable valve timing


The Vortec 4.8L V8 was a popular choice for the Silverado due to its balance of power, efficiency, and reliability. It provided ample towing and hauling capability while still delivering decent fuel economy for a full-size pickup truck.


Other Engine Options for the 2004 Chevy Silverado


In addition to the standard Vortec 4.8L V8, the 2004 Chevy Silverado was also available with these other engine options:



  • Vortec 4.3L V6 (195 hp, 260 lb-ft)

  • Vortec 5.3L V8 (295 hp, 335 lb-ft)

  • Vortec 6.0L V8 (300 hp, 360 lb-ft)


The 4.3L V6 was the base engine, while the 5.3L and 6.0L V8s offered more power for towing and hauling heavier loads. Ultimately, the 4.8L V8 struck a nice balance between capability and efficiency for most Silverado owners.

How do I tell what Chevy engine I have?


Stamped Numbers are a set of numbers literally stamped into the block. These numbers are stamped into a machined pad in front of the passenger side cylinder head – more than not it's covered up by the alternator. These numbers will tell you where the engine was assembled, production date, and the suffix code.



How can you tell what engine by VIN number?


Can my VIN number tell me what engine I have? Yes. Characters 4-8 on a given VIN denotes the vehicle's manufacturer, engine size, and type. To learn more about a particular VIN, enter it here.



What's the difference between a 5.3 Vortec and 5.3 LS?


Nothing really. Engines with the LS designation were typically set up for passenger car duty while the Vortec line was for GM's SUV and truck lines. In other words, the difference is in the marketing and where the various engines were going to be used across the GM brands.



What LS motor is in a 2004 Chevy Silverado?


Chevy LS Engines

ModelYear(s)Engine RPO
Silverado 1500 HD2001-076.0L Vortec LQ4
Silverado 15002002-075.3L Vortec L59
Silverado SS2003-076.0L Vortec LQ9
Silverado 1500 Vortec H.O./Vortec Max (2007)2004-076.0L Vortec LQ9



What gen 5.3 is in a 2004 Silverado?


Gen. III LS & Vortec Engine Quick Reference Guide

Generation IIILiterCode
2003-055.3LM4
1999-075.3LM7
2002-075.3L59
2005-075.3L33



What engine did the 2004 Chevy Silverado have?


Engine: 6-liter V-8, 345 horsepower at 5,000 rpm, 380 pound-feet of torque at 4,000 rpm. Transmission: Four-speed automatic. Wheelbase: 106.5 inches. Curb weight: 5,298 pounds.



What is the name of the 2004 5.3 engine?


The LM7 is a 5.3L, Gen. 3 small block engine used in GM trucks between 1999 and 2007. For marketing purposes, it was also known as the Vortec 5300.



How do I know what engine I have Chevy Silverado?


CHEVROLET SILVERADO VIN check: what can you find out? The first three characters are in the center of the 17-character alphanumeric VIN and indicate the country of origin and manufacturer information. Characters four through eight indicate the size and specifications of the engine, as well as the type of vehicle.



What engine does my Chevy Silverado 1500 have?


The standard engine with the 2022 Chevy Silverado 1500 WT, Custom, Custom Trail Boss, LT, RST (double cab), and LT Trail Boss is a 2.7L turbocharged high-output four-cylinder. This powerful and efficient 310-horsepower engine has been reengineered to generate 430 pound-feet of torque — a 24 percent increase.



Is a 2004 5.3 an LS motor?


The 4.8L and the 5.3L are smaller truck versions of the LS1 and were designed to replace the 305 and the 350 in trucks. The 4.8L and 5.3L engines share the same Gen III LS-series engine block and heads (upper end) and therefore, most parts interchange freely between these engines and other variants in the LS family.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.