Flywheel/converter cover for a SBC w/ BOP 400

[moose]

Does anyone know where to get one? All I can find are covers for a Chevy bolt pattern TH400 and the universal plastic ones I've bought don't work because the adapter plate adds to the length and push the flywheel against the front of them.

 

[chevy2480]

What trans I have one for a bop 200r4 $40 shipped

 

[moose]

I have a Chevy 350 with a Pontiac TH400