LA roller 360 block with solid roller lifters

Hi all.
I have a set of Retro fit roller lifters for a Chrysler LA engine 360ci. The part no. is 69532-16. My question is what would be the recommended push rod size for this for the installation. Also the geometry of the lifter to pushrod has changed. The angle between the lifter which meets the pushrod has increased due to the taller lifter. Is this a potential problem? Please let me know.
Regards
Billy D...