Roller LA Deck Height

Some of the old LA engines came from the factory slightly higher than 9.6 deck, due to that manufacturing tolerance. Your numbers are valid on paper but without knowing actual measured specs your particular parts it is still a guess. If you remove a valve cover and find one of the rocker arms that can be pushed down on the pushrod side you can estimate how much more travel the lifter plunger has. This will only work on lifter that is not fully pumped up with oil and must done when that lifter is on the cam base circle. If you can push it down your pushrods will be fine for this application.

Most likely you are fine because there is a lot of lifter plunger travel available, the very reason the factory engines worked with so much deck height variance.