Mercury 600XL Verado FourStroke. The 7.6L V12 600hp Verado® outboard delivers flawless performance and uncompromising reliability from the outboard segment’s first V12 powerhead. Its 7.6-liter displacement and performance-inspired quad-cam design generate superior torque and acceleration to lift heavy boats on plane and conquer the water with confidence. With the strength of the V12 Verado outboard behind you, freedom is as easy as deciding how far you want to go and how fast you want to get there.