The Bilge!

Fuel burn vs speed

Let's try to find all details on props, chopper or not, for petrol or diesel. 30 or 32

Dedicated to technical questions on any part of the MC

Feel free to start using these pages/Groups, we will create some more as time goes by, depending on what is needed, post some nice photos in the group and let's take it from there, it is still in developpment but hopefully in a couple of weeks it will all be operational!

The 7.4-liter 454 V8 Crusader marine engine is one of the most respected big-block inboard powerplants of the late 20th century, known for its strength, smoothness, and exceptional torque on the water. Built from the foundation of Chevrolet’s legendary 454 big-block, Crusader re-engineered the engine specifically for marine duty, focusing on durability, cooling efficiency, and reliable power delivery. For many boaters, the 454 Crusader became the gold standard for powering cabin cruisers, sport boats, ski boats, and midsize yachts throughout the 1980s and 1990s.

At its core, the Crusader 454 uses the rugged GM Mark IV big-block architecture with a 4.25-inch bore and 4.00-inch stroke. This gives the engine a displacement of 7.4 liters, producing massive low-end torque—exactly what a heavy boat needs to get on plane quickly or maintain speed in rough water. In marine tune, output typically ranges between 300 and 350 horsepower, with torque figures well above…