Mercury Racing 450R Outboard

Mercury Racing’s new 450 hp outboard features the same V-8 powerhead used on its 300R.

The new engine is boosted by an exclusive supercharger.Mercury Racing

Mercury Racing has released a new 450R outboard that features the same 4.6-liter V-8 FourStroke powerhead used on 300R outboards. The new engine is boosted by an exclusive supercharger that produces 450 peak prop-shaft ­horsepower and 40 percent higher torque than its 400R predecessor. The 450R runs on 89 octane fuel and works with Mercury Racing Zero Effort Digital controls or any Mercury Marine digital-control system; Joystick Piloting is optional. Available in Cold Fusion white and Phantom Black, the 450R comes with a 20-, 25- or 30-inch shaft. The lightest version weighs in at 689 pounds. The outboards are expected to cost $54,000 to $64,000.