Project M900Sie Refresh!

Would that work? I'm assuming it's not a simple bolt on procedure

[Dukedesmo]

Originally Posted by JMH900sie

Would that work? I'm assuming it's not a simple bolt on procedure

One good thing about Ducati engines is that they often share the same platform so there is a lot of mixing n' matching that can be done, which is basically how Ducati came up with the Monster in the first place.

The bottom end of the 900 is basically the same as a 916 etc., so if you fit the barrels & heads etc. from a 4-valve, you'd end up with; a Monster S4 but it would be easier/cheaper to buy an S4 or at least the engine.

My 900 has a 2mm overbore to 944cc and along with a few other non too radical mods makes 91hp with a very healthy spread of torque. I do know of a 944cc (air cooled) that put out 110hp but the builder/owner put a lot of effort into that.

The 3-valve engine from the ST3 is a good compromise and despite being water cooled can 'almost' be made to look as if it's not...