Dwight, its barely an oversquare engine.
Ducati's new 1198 engine is 106 x 67.9, a 1.56 to 1 bore/stroke ratio.
At 103.8 x 94.3, the T-Bird is at 1.1 to 1.
It seems to have a lot of reciprocating weight-
the con-rod is long and heavy.
It doesn't have a "slipper" piston like the Ducati.
That's why the 1198 can spin 4000rpm higher, even with a
bigger diameter piston.
I don't think the crankshaft weight effects the redline, just the rate of accel/deceleration.
The crank is just in a constant spin, but the piston, piston pin, con-rod, and crank journal have to come to a
complete stop twice per revolution, and they can only handle so much G-force before things start bending/touching/breaking.
To spin faster, they would either have to decrease the bore to lighten things up(fat chance)
or use a titanium con-rod and slipper piston like you see
in sportbikes and 4-stroke MXers.
