I picked up an aluminum flywheel with no insert. This was from a boat, but i hear these were used on the street too. Should i run it? Any suggestion on flywheel? It'll be in a 1800-2000 lb car.

Otherwise, does anyone have a source for a bolt on insert that bolts thru the pressure plate bolts? I know they made them back in the day. 

I can machine a insert for it, but i dont really want to