[Kitdy]

Originally Posted by LotusLocost

If i don't remember wrong it is the same engine as in the Radical SR8..
Two Hayabusa engines mated together isn't it?

A google search revealed Wiki on the SR8 engine.

I do know that the Atom RS and RS Levante's engine has 5 vpc, so the engine has at least different cylinder heads.

I will keep looking.

Well this is interesting.

Read.

Started to work on the engine 15 years ago.

Ah now I got the name the puzzle is coming apart. It's called the RST-V8. All it shares with the original 1L Yamaha EXUP bike eingines form the 90s is the cylinder head castings apparently.

Read more.

Amazing. Thanks for the nudge Fredrik.

EDIT: I heard once source call it a microblock V8. That pleased me.