Stihl MS650/660 hybrid, 91.6cc, 28' bar and chain.

Demo vid for potential buyers, Stihl MS650 with new genuine MS660 piston and cylinder kit just fitted, 28" McCulloch bar with stihl pm3 chain. Pine test log... Thanks

[TonaldDrump]

I don’t think it’s a hybrid brother, It evolved from 650 to 660.
Same saw, different cylinders.
It damn sure runs well....👍