Chevrolet Silverado 1999 - 2007 4.8 V8 285hp
Real standard and upgraded performance figures for the 4.8 V8 285hp engine in the Chevrolet Silverado 1999 - 2007.
This page covers the 4.8 V8 285hp as fitted to the Chevrolet Silverado 1999 - 2007 — the figures below reflect that specific engine, not the model as a whole.
| Horsepower (HP) | Torque (Nm) | |
|---|---|---|
| Standard | 285 | 400 |
| Stage 1 | 305 | 425 |
| Stage 2 | 315 | 437 |
- Make
- Chevrolet
- Model
- Silverado
- Generation
- 1999 - 2007
- Engine
- 4.8 V8 285hp
- Fuel type
- Petrol
Frequently asked questions
Is Stage 1 tuning safe for the Chevrolet Silverado 1999 - 2007 4.8 V8 285hp?
Yes — Stage 1 for this engine is a software-only remap calibrated to stay within its stock mechanical limits (turbo, clutch, fueling), so no hardware changes are required.
How much more power does the 4.8 V8 285hp make after tuning?
Standard output is 285 HP / 400 Nm; Stage 1 on this engine typically reaches 305 HP / 425 Nm. Exact results can vary slightly with fuel quality and vehicle condition.
How long does a Chevrolet Silverado 1999 - 2007 4.8 V8 285hp remap take?
Once your original file is uploaded through the member panel, most requests for this engine are completed within a few hours.
Can the 4.8 V8 285hp be reverted to its original file?
Yes — we keep the original file on record for the request, so the ECU can be put back to stock at any time.