Stroke with only Pistons and Crank?

Confusedoldman said
It will generally put the wrist pin into the oil control rings, but depending, it could only require pistons with less deck height.

That tends to be an issue with a low deck BB set up needing the support.

A 4" arm, stock rod length, SB std OEM deck height isn't an issue with the oil rings. It does start to get tight if you go with more than 4" stroke.