for sure, what was it... the stroke of 1299 and the bore of 899... they've already got the appropriate heads and rods hanging around...the whole engine is probabaly a hybrid of 12 and 899 bits and bobs ahaaMight be hard to tell but I won't be surprised if that's the case since sharing parts like that helps with them to be much more efficient in areas that don't need to be fully revamped, instead just brought up to a level appropriate for the package if needed.
probabaly Termi's like always...Wonder what exhaust system they're using for the 959. Hard to tell with it blacked out.