The Fox Eagle .60 with a .905 bore and .937 stroke could be considered a long stroke engine as is the MVVS .61 and the MOKI .61 LS at 23x24 respectively. The Saito .82 is a real torquer and is way lopsided in favor of the bore, so as Dar says, the long stroke design having more torque is not a rule of thumb. Here is an interesting comparison Clarence Lee did between the MOKI .61 standard 24x22 and the the .61 Long Stroke 23x24.

Moki 61 Long Stroke Moki 61 Standard Stroke
11 x 7 12,800------- 11 x 7 12,900
11 x 8 12,100------- 11 x 8 11,450
11 x 10 10,300----- 11 x 10 9,900
12 x 6 11,600------- 12 x 6 11,300
12 x 8 10,300------- 12 x 8 9,950
13 x 6 11,100------- 13 x 6 10,500
13 x 8 8,200------- 13 x 8 7,750
14 x 6 9,000------- 14 x 6 8,400

The short stroke engine only had the advantage with the smallest prop. I have the LS and it's a shame they no longer make it. But the MVVS .61 has the same bore and stroke as the MOKI LS and it is a fine engine as well.