To get some technical specs on it:
All the pictures I see show it to be dry sump oiling from the factory.
Engine Type: DOHC, 4 valves per cylinder, supercharged V-8
Engine Displacement (L): 5.4
Bore/Stroke (mm): 90.2x105.8
Displacement (cu in/cc): 330/5409
Compression Ratio (in/mm): 8.4:1
Material: All Aluminum
Horsepower : 550
Torque @ RPM (lb ft): 500@4,500
Horsepower Specific Output (hp/liter): 92.6
Torque Specific Output (lb ft/liter): 92.6
Recommended Fuel: 91 octane (premium)
Fuel System: Sequential multi-port electronic fuel injection -(SEFI) with dual injectors per cylinder
Oil Capacity with Filter (quarts): 10
Usable Fuel Capacity (gal): 18