biggest out board made

what is the biggest ,and most powerfull outboard engine made ,,,thanks,longliner

 

Yamaha 4 stroke, 350HP, V8, 5.3 liter, 60-degree, dual-overhead cam, 32 valve, 1.73:1 gear ratio, 804 pounds. More at: http://pmyeditors.blogspot.com/2007/02/largest-four-stroke-outboard-yet.html

 

thanks arty,,,,,,,,I saw a giant outboard on a police boat at lake erie,,,it looked about 8 ft high and had a prop about 2 ft ,I didnt know if it was gas or diesle,and I have a small debate with the guys at work ,,pro bass fishers,,,,thanks again ,,longliner

 

"Largest"

The Merc racing F1 V6 engines can run 400 HP when perfectly tuned..

 

There are many barges fitted with DD 8v71 and a leg that lowers into the water, outboard style,Does that Qualify as an outboard?

The diesel is bolted to the deck, and uses a radiator to cool .

Not fast , but think of the bollard pull!

FF