stihl 056 mag II are 93.4 cc 6.8 hp
The 056 was made from the late 1970's to the mid 1980's.
Anti Vibe
The 1985 Stihl 024 AV is 44.6 cc.
49cc
045 av is 75cc and the 045 av Super is 87cc.
That has no singular answer since there were the regular model, the Super and the Magnum. The stroke remained the same on all three at 38mm. The list is: 056 AVE 52mm x 38mm 056 AVSE 54mm x 38mm 056 AVSEQ 54mm x 38mm 056 Magnum AVE 56mm x 38mm 056 Magnum AVEQ 56mm x 38mm AV = anti-vibration or shock mounted E = electronic ignition S = Super Q = Quickstop or chainbrake
STIHL 029 SUPER 56.5CC 3.8HP
maybe baby.
51.4cc
gap is .017
87cc, 6.1 horsepower. Mine is a 1985 model.