Expected gains of +20 BHP and +31 Nm torque
Get Your Free Quote ↓Considering an ECU remap for your Chevrolet Silverado 6.2 V8 420hp? A Stage 1 remap can take this 2014 -> petrol engine from 420 BHP to 440 BHP and from 609 Nm to 640 Nm of torque (naturally aspirated). This engine scores 3/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your Chevrolet Silverado can achieve.
The Chevrolet Silverado 6.2 V8 420hp is a 6.2L naturally aspirated petrol engine producing 420 BHP and 609 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 440 BHP and 640 Nm — a gain of around 20 BHP (5%) and 31 Nm (5%).
This engine has low remap suitability, though the available headroom is limited, so gains are modest compared to higher-output variants. The tuning headroom is classified as limited, based on the percentage gain available from the factory output.
Considerations: Naturally aspirated engine: gains are usually limited; results vary widely.. High tuned torque: check transmission torque capacity and service history.
All figures shown are typical estimates based on aggregated Stage 1 data for this engine variant. Actual results depend on vehicle condition, mileage, and the chosen tuning method. We recommend discussing your specific vehicle with a qualified remap professional.
| Engine | BHP | Gain | Torque | Gain | Score |
|---|---|---|---|---|---|
| 4.3 V6 285hp | 285 → 305 | +20 | 414 → 435 | +21 |
| Limited (3.5/10) |
| 5.3 V8 355hp | 355 → 375 | +20 | 519 → 540 | +21 | Limited (3/10) |
| 6.0 V8 360hp | 360 → 380 | +20 | 542 → 570 | +28 | Limited (3.5/10) |
| 6.6 V8 397hp | 397 → 440 | +43 | 1037 → 1100 | +63 | Moderate (5.5/10) |
Get a personalised remap quote for your Chevrolet Silverado. We'll connect you with a trusted professional in your area.
All figures shown are typical estimates based on aggregated Stage 1 data for this engine variant. Actual results depend on vehicle condition, mileage, and the chosen tuning method.
We recommend discussing your specific vehicle with a qualified remap professional before proceeding.