Chevrolet Avalanche 2002 - 2006 8.1 V8 340hp
Real standard and upgraded performance figures for the 8.1 V8 340hp engine in the Chevrolet Avalanche 2002 - 2006.
This page covers the 8.1 V8 340hp as fitted to the Chevrolet Avalanche 2002 - 2006 — the figures below reflect that specific engine, not the model as a whole.
| Horsepower (HP) | Torque (Nm) | |
|---|---|---|
| Standard | 340 | 606 |
| Stage 1 | 360 | 640 |
| Stage 2 | 370 | 657 |
- Make
- Chevrolet
- Model
- Avalanche
- Generation
- 2002 - 2006
- Engine
- 8.1 V8 340hp
- Fuel type
- Petrol
Frequently asked questions
Is Stage 1 tuning safe for the Chevrolet Avalanche 2002 - 2006 8.1 V8 340hp?
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 8.1 V8 340hp make after tuning?
Standard output is 340 HP / 606 Nm; Stage 1 on this engine typically reaches 360 HP / 640 Nm. Exact results can vary slightly with fuel quality and vehicle condition.
How long does a Chevrolet Avalanche 2002 - 2006 8.1 V8 340hp 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 8.1 V8 340hp 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.