Tuning file specifications

GMC Sierra 4.8 V8 302hp

Stock power
302HP
Tuned power
320HP
Stock torque
414Nm
Tuned torque
435Nm

Power (HP) · +18 HP

Stock302 HP
Tuned320 HP

Torque (Nm) · +21 Nm

Stock414 Nm
Tuned435 Nm

Info

FuelPetrol
Engine ECUAc Delco E38

Technical engine data

Compression8.8 : 1
Bore x Stroke96.0 X 83.0 mm
Engine numberL20

All figures are dyno tested values. Results may vary depending on vehicle condition, fuel quality and hardware.

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