Juan and Tim are not correct. The part number for all digital ignition selectra systems is the same. As long as you have a key start ignition (which you do), it will fit either model of motor.
The 09 uses the same key start ignition as the 08. It isn’t the 09/08 difference that’s the problem, it is that the analog (box) and digital (key start) systems are not the same. If you have the key start ignition, it will fit an 08 and an 09 and either motor will run fine with it.
These two ignition systems will fit either engine model just fine with no modifications. You just can’t swap parts between the two ignition systems. For example, I recently forgot that little fact and bolted my key-start Selectra onto an older engine without swapping out the old-style stator. Didn’t run so good. Three minutes later–2 to swap out the stator and 1 to kick myself in the rear–it ran like a charm.
I’ve used an 09 with the old box and I just had to put the old Selettra Ignition (Stater) I think if you put the 09 Stater on the 08 you need to grind a tap in order for it to fit. I am talking about old one with the starter box. you can also get the old one with the keystart ignition. not sure if modification is needed for that one.
Jim Russell should be able to give you more details. also check the old forum archive.