Type: 5.3L V-8

Displacement: 5328cc (325 ci)

Compression ratio: 9.9:1

Valve configuration: overhead valves (2 valves per cylinder)

Assembly site: Romulus, Mich.

Valve lifters: hydraulic roller

Firing order: 1 - 8 - 7 - 2 - 6 - 5 - 4 - 3

Bore x stroke: 96.01 x 92mm

Fuel system: sequential fuel injection

Horsepower: 310 hp ( 231kw ) @ 5200 rpm

335 lb-ft ( 454Nm ) @ 4000 rpm

Fuel Shut Off: 6000 rpm with automatic transmission and

electronic throttle control

evaporative system

catalytic converter

positive crankcase ventilation

returnless fuel system

Applications: GMC Sierra ( extended cab )

Chevrolet Silverado ( extended cab )

Block: cast aluminum

Cylinder head: cast aluminum

Intake manifold: composite

high silicon molybdenum

cast nodular iron

Main bearing caps: powder metal

Crankshaft: cast iron with undercut and rolled fillets

Camshaft: steel

extended life spark plugs

extended life coolant

oil level sensor

Oil Life System

electronic throttle control

floating pin pistons

GF4 oil

rate based diagnostics

Additional features:

MATERIALS

Emissions controls:

Exhaust manifold: