Pontiac · Grand Prix
5.3 V8 303HP
2004-2009
Engine Specifications
Original Power
303 HP
Original Torque
438 Nm
Cylinder Volume
5328 cc
Max Torque RPM
—
Max Power RPM
—
Engine Code
LS4
ECUPontiac, OtherX
Stage 1 Performance
Power
325 HP
Torque
460 Nm
Stage 2 Performance
Power
—
Torque
—