Busted piston skirts, New pistons?

[nuitdevotremort]

Currently in a rebuild of my 82 650GLZ. Found the 4th piston's skirts (both front and back) are broken off. Cylinder walls are good, still need to check the crankcase for any damage but looks alright.

My issue is replacing this piston. I'd like to replace them with a high compression set but not sure where or how to find this. I've been trying all the sites that I've been relying on but I'm not sure how to find this. Any ideas? Thanks.

[Nessism]

Pretty sure there is no such things as high compression 650 pistons.

[Guest]

Sure!
Shave the cylinder and cut bigger valve pockets into the stock pistons.
Use silly putty on the valve pockets to make sure you aren't contacting valves with the pistons before you start it. ( by hand and not with the starter motor)