New 5.3L DI L84 Base Engine

Displacement 5328 cc (325 ci)

Compression Ratio 11.0:1

Valve Configuration Overhead Valves (2 valves per cylinder)

Valve Lifters Hydraulic Roller

Firing Order 1 – 8 – 7 – 2 – 6 – 5 – 4 – 3

Bore x Stroke 96.01 x 92 mm

Fuel System SIDI Maximum Engine Speed 5800 rpm

Emission Controls Catalytic Converter,

Three-Way Catalyst,

Positive Crankcase Ventilation

Horsepower 355 hp (264 kW) @ 5600 rpm

Torque 382 lb-ft ( 519 Nm ) @ 4100 rpm

Block Cast Aluminum

Cylinder Head Cast Aluminum

Intake Manifold Composite

Exhaust Manifold Cast Nodular

Iron Crankshaft Cast Nodular

Iron Camshaft Billet Steel

Connecting Rods Forged Powder Metal