I looked up a GX140 Type QX and a GX160 Type QX and the crankshaft for both was the same part number, So I would say the stroke is the same in both.
Originally Posted by piston slapper
You never learn anything until you admit you don't know it all...
"Why go out preserved when you can go out beat up, worn out, sliding in sideways screaming, Holy Sh!t What A Ride" !!!