The 056 was the original, the Super had a piston that was 2mm larger in diameter and an slight carburetor change. The Magnum had the same piston as the Super, but had a carburetor and ignition change, The one you did not ask about was the Magnum II (of which only 70 some were made) had a major carb change, a muffler change and an ignition change. It could be further modified in the muffler.
With Stihl most Super models have a piston diameter that is 2 mm larger than the other version of the same model. The Super is still an AV otherwise as that stands for anti-vibration, which means that it usually has four shock mount buffers between the engine and handle
STIHL 029 SUPER 56.5CC 3.8HP
Stihl 029 super 56.5cc 3.8hp
I have written in my Stihl 051 AV electronic Owner\'s manual that its horsepower is 5.8 hp at 7,000 rpm. I don\'t know if that is true for a Stihl 051 super. I have never heard of a Stihl 051 super.
The difference is in the motor size.The 034AV is 56.5cc (cubic centimeters) and the 034 Super is 61.5 cc (cubic centimeters). The 034 Super has a slightly larger motor, and therefore it presumably also has greater speed and power.
The Super bear. A cross between a bear and a .44 magnum
51.4cc
usually the super means a slightly larger displacement
68.7cc the super is 72
77 cc
There is no .338 Lapua Super Magnum. There is a .338 Lapua Magnum which is considered a member of "Super Magnum family". .338 LM uses several different bullet types and drop will depend on bullet type and weight.
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