I've got the motor most of the way apart. Interesting fact about the oil pan is it's a double wall casting with dual sumps, same as on the S-54. If it were a lesser pump, all the internal parts would be avalible seperatly. But since it's a motorsports unit it's only avalible as a single $600 part.


I suspect that the oil relief has been causing low oil pressure issues. Here are more pictures of the damage:

The crack in the front sump area, note the built in windage tray and dual wall casting.

Close up of the rear sump, notice the pieces.

Note the rip in the back of the sump.

To fix it I'm thinking of bending up some 3/16" aluminum plate and building a new bottom end for the sump. Maybe even mill in some fins into the plate.

James