Photos do not show hole?
I can't see the hole in the photos....you described the hole as being toward the distributor (front of motor) but the photos are taken toward rear of motor which obstructs the view?
There should be 2 round holes (.250") in diameter for oil flow.One at front of block (inside lifter valley) and one at the rear.
Both holes should be centered as you look at the block from the front.
If you are referring to the asymmetric shaped holes on the deck of the block (surface the head mounts to)...they are supposed to be there. They are the coolant passage holes. You will see 2 at the front of each deck and two at the rear of each deck. (8 total on motor)
Other than that...I can't see anything in the photos.....try a different angle and use a shop light to brighten up what you are showing.
2014 GHIG GT
Boss Intake, CAI, TB, X-pipe, Alum Drive shaft, MGW shifter/BMR control arms & mounts....no 1/4 mile times yet...just got it...drove it home stock & immediately began the bolt on's.