OEM Hydraulic Roller lifters / LA Engine

Hi Guys,

i´m building a 408 Smallblock based on a 360 LA from 1991. This one is factory equipped with hydraulic roller cam / Lifters.

Now the shortblock is done, i want to put in the oem hydraulic roller lifters to complete the valvetrain. the lifters have the oil supply hole in line to the roller axis, so i can put the lifters in with this hole towards front of the engine or towards rear of the engine - wich way they should be?

Every Magnum engine Lifter i saw has got this oil hole 90° offset to the roller axis and they have a paint dot that goes to the inside of the engine (easier to bleed air from the lifter).

I think it´s not a big deal with the direction, but if someone can clarify this would be great!

Thanks in advance

Michael