What engines come in a Chevy Silverado?
The Silverado lineup includes five engines for the light-duty 1500 model (a 2.7L turbo I-4, 4.3L V6, 5.3L V8, 6.2L V8, and a 3.0L Duramax diesel) plus two additional options for the heavy-duty 2500HD/3500HD (a 6.6L gasoline V8 and a 6.6L Duramax diesel). This reflects the engines available across the Silverado family as of the 2024–2025 model years.
Below is a detailed look at which engines are offered in the Silverado, first for the light-duty 1500 and then for the heavy-duty 2500HD/3500HD. Availability can vary by trim, cab configuration, drivetrain, and market, so always confirm with a dealer or GM’s configuration guide for your region and year.
Chevrolet Silverado 1500 engine options
The light-duty Silverado 1500 brings a range of gasoline powertrains along with a diesel option to balance efficiency and capability.
- 2.7L Turbocharged inline-4 EcoTec3
- 4.3L EcoTec3 V6
- 5.3L EcoTec3 V8
- 6.2L EcoTec3 V8
- 3.0L Duramax Turbo-Diesel inline-6
These engines are typically paired with GM automatic transmissions (primarily 8-speed or 10-speed units, depending on the engine and model year). The diesel and certain higher-output configurations may use different transmissions or service requirements.
Chevrolet Silverado HD engine options
The heavy-duty Silverado 2500HD and 3500HD expand power for towing and payload with two robust powertrains.
- 6.6L V8 gasoline (L8T)
- 6.6L Duramax turbo-diesel V8 (L5P)
These heavy-duty engines are paired with a robust automatic transmission system, typically including an Allison 10-speed automatic in many configurations, designed to handle high torque and demanding workloads.
Notes on availability and configuration
Engine availability, transmission pairing, and performance figures can vary by year, trim level, cab/bed configuration, 4x4 vs. 2WD, and regional market. Always check the latest GM product guide or a local dealer for the exact options and compatibility for your build.
Summary
In summary, the Chevy Silverado offers a versatile engine lineup across its generations: light-duty 1500 models provide a 2.7L turbo I-4, a 4.3L V6, 5.3L V8, 6.2L V8, and a 3.0L Duramax diesel, while heavy-duty 2500HD/3500HD models add a 6.6L gasoline V8 and a 6.6L Duramax diesel to handle heavier towing and payloads. Transmission choices vary by engine and year, with GM’s 8-speed and 10-speed automatics commonly used across the lineup.
