Anyone recognize this clutch?

[SySteMAtiC72]

This is the clutch on my 79 Invader 440. I have a 78 that is in exceptional shape that I want to swap the motor to. I have a Kaw puller, so I'm hoping I won't have to budget another one in.

[gixxer6]

Looks like a power block clutch to me. 

[rminier]

 Yep, I agree....a Power Bloc. Still being used today on some Ski-Doo's...maybe the 300 Freestyle?
 I don't know what puller that thing takes, though.
 You are probably not going to luck out and have the correct one....I think I have heard that the puller that works is the same as the old square shaft Ski Doo cluthes....but not positive.
 If you could find the correct thread size, you could find a bolt, wrap the threads with gobs of teflon tape..., fill the clutch cavity with water, oil, or grease....then tighten the bolt down and the "hydraulic" effect will pop the clutch off the crank.