If you want strength then you should not be doing a body part split. That is as the names suggests tailored towards making each body part better (generally: size gain).
For strength I would reccomend a format such as:
3x a week
Week 1: Upper/Lower/Upper
Week 2: Lower/Upper/Lower
4x a week
Upper 1, lower 1, Upper 2, Lower 2
3x a week full body (this is the way I train)
Mon - Bench, Squats, Rows
Wed - Military Press, Deadlifts, Pull-ups (bicep accessory)
Fri - Decline Bench, Front squats, hams, tricep accessory
Friday we don't usually go ballz out because it is more of a supporting day for the other 2 days.
So, as you can see there are many styles you can train. I have only shown a few.