Upper Oil Pan Not FLush With Rear of Block

[Keith Browning]

I am replacing a short block on a 2016 F550, I already set the upper pan on the block and torqued it and put on the lower pan as well. The upper pan is "located" with two dowels that are in the block near the rear of the engine so there really is no room to adjust. I noticed today that the rear surfaces are not flush - the oil pan rear surface is maybe 1mm shorter than the block. So if I mate this engine to the transmission I am thinking this may cause problems. This is a new short block that is multi-year/model comparable and because of the amount of metal in the crankcase I decided to put on a new upper pan assembly so yes, both parts are new.

Thoughts and experiences?

[FordFanaticTony]

What did you find out about this btw?

[Keith Browning]

After doing more of these it was discovered that this is normal.

[FordFanaticTony]

right on. thanks for the heads up.