93 obd1 cam carrier to obd2 95 cam carrier

[Fastone11]

Is it as simple as drilling the hole for the cam sensor in the obd1 cam carrier? Or is it more than that?
I have the old obd2 cam carrier but I feel that the wear may hinder the oil pressure? And was wondering if a competent machine shop would be the resolve?
Or is the valve specs differ from the original OBD2 95 3.4l Dohc (X) engine

[Fastone11]

By The way both cam carriers have the same casting numbers? Go figure?

[RedZMonte]

IIRC there is something different about the cam itself.... Something that allows the Cam position sensor to determine its position, so i think its more then just a hole in the cam tower. If the casting number is the same and it also has the prevision in the valve cover to allow a spot on the sensor then it looks like they machine a hole in the tower from the factory (rather then casting the hole)