85/86 and 87 crank differences?

[DOGBONE]

Well first I know the 87 crank has a longer rod than the 85/86 crank, but did Honda stamp some letters on the these cranks so you could tell the difference between them?

[whiteman350x]

Acording to Eddie Sanders Racing, the short rod is marked KA4, and the long is HA2. The measurements are 125.3 cm and 130.3 cm. Measure from the center of crank pin to the center of wrist pin.

Whiteman

[DOGBONE]

Hey thanks man, anyone else got anymore input?