Main caps torque sequence

This is not a head torque sequence, it don't matter. What matter is that you set #3 thrust bearing by moving the crank back and forth before torquing.......and the most important part check the end play with a dial.
the correct method, is, # 1 then # 5, #2 #4, # 3 last, wedge the crank before tightening #3, also, use a dial ind to measure end play.