nevermind my last comment...

2003 Corvette Coupe 2003 Corvette C5-R
Displacement: 5.7 liters (350ci) 7.0 liters (427ci)
Horsepower: 350 hp @ 5200 rpm 610 hp @ 6200 rpm
Torque: 360 lbs.-ft. @ 4400 rpm 570 lbs.-ft. @ 5600 rpm
Fuel: 93 octane unleaded gasoline 100 octane unleaded gasoline
Bore Diameter: 99 mm (3.90") 104.6 mm (4.120")
Crankshaft Stroke: 92 mm (3.62") 101.6 mm (4.00")
Deck Height: 9.24" 9.24"
"V" Angle: 90 degrees 90 degrees
Cylinder Bore Spacing: 4.40" 4.40"
Valvetrain: Pushrod with overhead valves Pushrod with overhead valves
Valves per Cylinder: Two Two
Camshaft Drive: Chain Chain
Cylinder Case Material: Aluminum Aluminum
Cylinder Liners: Dry iron Dry iron
Cylinder Head Material: Aluminum Aluminum
Fuel System: Sequential EFI Sequential EFI
Throttle System: Throttle body Individual runner
Lubrication System: Wet sump Dry sump


http://www.c5rmotorsports.com/engine.htm