98 4.6l piston direction

[Perfectfit]

ok so I pulled a huge rookie mistake. In the process of replacing the cranshaft (from spun rod bearing) i pulled the pistons and forgot which direction they went in the motor. Could someone please help with which way is the correct way. There is an R on one side of the pinboss (which I would believe to be for rear) and on opposite side there is a dot. My manual states they need to go in with dot on crown to the front but there is no dot on head of the piston. PLEASE HELP!

 

[96blak54]

Stock piston? There is a dimple on one side. That dimple faces the engine front.

 

[Boostr1]

I concure with @96blak54