Oil Plug Wet Sump Chevy V8 Oil Pump Drive For Chevy Engines MSD IgnitionOur Chevrolet Front Drive Distributors brought the need for a distributor plug. Both are billet aluminum and feature a slip collar to ensure correct installation depth. Must be used with an MSD Crank Trigger O ring seals can be added to modified blocks to improve oil pressure control CNC machined billet aluminum housing For use on engines with a wet sump oil system and a front drive distributor Oversized polished steel shaft with a QPQ coating Special