engine identification

[bigscooter]

hi guys, i just got a second hand engine kit(2T grubee?)for $40. it looks like the top end has been replaced/repaired cuz i see high temp sealer around the head and cylinder base. it's missing the exhaust pipe. is there a way to identify what displacement it is? does the 49cc and the 80cc engine use the same pipe?

thanks!

 

[The Busted Nut]

Post a pic or 2. We can help. All pipes are the same.

 

[DuctTapedGoat]

You can always measure the cylinder.

 

[decoherence]

look @ some pics. the jug on the smaller cc engine is visually smaller.
the 66cc is also more square when looking from the top.

 

[bigscooter]

here are some pictures. i'm guessin' it's a 50cc? is the bottom end the same as the 80cc engine?