SR20DET Upper Pan Fitment Issue

[Sideways~S14]

Hello everyone,

I was curious if anyone has possibly had a similar problem to me. I am trying to put the upper pan back on my motor, but it doesn't want to fully press onto the back of the block. I had the motor fully balanced decked etc. Im curious if the alignment pins would maybe be takin out to do all that. Im looking for any input on what the issue may be. Ive tried 4 upper pans so I know its not the oil pan. Heres a picture its a decent gap Im dealing with.

[Hijacker]

Are the pins squarely perpendicular? In the picture, one looks cocked awkwardly, but that could be angle of the picture. You can't lightly tap it all the way down?

[CSUPUEBLOTIM]

Are you using arp main studs? If so you will need to notch the pan.

[OM3GA]

^ I was asking myself that same question.