Lots of oil pans should fit just fine with 4.15 stroke. Milodon has several street pans that should fit. Mancini Racing has a few reproduction type pans that should fit with the Street Hemi pan being a good choice.

Did you use Mopar sized rod journals? If so, you might need a stroker windage tray. The standard windage try works fine when using BB Chevy connecting rods on 4.15 or 4.25 stroke cranks.