The 2000 5.7 Vortec delivers 255 horsepower.
In the 2000 model year, GM’s 5.7-liter Vortec V8—used in Silverado/Sierra pickups and related SUVs—was rated at 255 horsepower (SAE net) with about 330 lb-ft of torque. The exact figures could vary slightly by model, drivetrain, and exhaust configuration, but 255 hp is the standard figure most buyers and servicers cite for that year.
Engine profile and where it appeared
Below is a summary of where the engine was used and the general characteristics that defined its performance in 2000.
Key specifications
Before listing the core specs, here is a concise overview of what the 2000 5.7 Vortec is and how it fit into GM’s lineup.
- Displacement: 5.7 liters (346 cubic inches)
- Engine family: Vortec 5700 V8
- Horsepower: 255 hp (SAE net)
- Torque: 330 lb-ft
- Valvetrain: OHV (cam-in-block) with 2 valves per cylinder (16 total)
- Fuel delivery: Multi-point fuel injection (MPFI)
- Block material: Cast iron
- Typical applications: Chevrolet Silverado/Sierra 1500 and 2500 series, GMC Sierra 1500 and 2500, and related full-size SUVs
The engine’s design emphasized strong low- and mid-range torque, which aided towing and acceleration in full-size trucks and SUVs of that era. Transmission choices commonly paired with the 5.7 Vortec included automatic transmissions typical to GM’s trucks of the period.
Why the horsepower figure matters
The 255 hp rating reflects the SAE net standard used at the time, which accounts for accessories and exhaust losses. This differs from older gross ratings used prior to the 1980s in some markets. For a 2000 GM pickup owner or prospective buyer, the horsepower number helps gauge acceleration potential, while torque (around 330 lb-ft) indicates pulling power and drivability under load.
Summary
The 2000 5.7 Vortec V8 is commonly documented as producing 255 horsepower and about 330 lb-ft of torque, making it a hallmark of GM’s 5.7-liter Vortec lineup in that model year. Variations do exist across trim, drivetrain, and emissions equipment, but 255 hp is the standard reference for most 2000 GM trucks and SUVs equipped with this engine.
Summary of key takeaways
For practical purposes: 255 horsepower (SAE net) and 330 lb-ft of torque were the typical specs for the 2000 5.7 Vortec in GM full-size trucks and SUVs, with minor variations depending on the exact model and configuration.