New U.S. made Mopar Performance forged 3.79” stroke crankshaft with 8 bolt flange from the 1990’s. Part # P4529715. Stock 340 main and rod journal dimensions. Drilled for 4 speed with bushing.
The rear flange may have a little spot as seen in that picture. No rust elsewhere. Some factory coating or oil spray to prevent rusting is what you are seeing.
