I believe 111cc's or 6.77ci's.
The Stihl 064 is a 84.9cc chainsaw.
The fuel mixture for a Stihl chain saw is gas and oil.
At your local Stihl dealer
Stihl 029 super 56.5cc 3.8hp
$100
The Stihl 023 is 40.1cc - 2.45cu.in. -weight 10.1 lbs. w/o bar and chain
Can I put a 18inch bar on a stihl
The Stihl 039 saw has a 2-stroke engine with a displacement of 3.9 cubic inches. The related link will take you to the owner's manual.
Some Stihl chain saws have an adjuster underneeth the saw to turn up the oiler .
For a 20" Bar 325 Pitch .063 Gauge Chain 81 Links
54 cc
Not satisfactorily. The 021 is a lightweight saw.