Where can I find information about my M151A1 by using the engine S/N.

I just got my first project car. IT is a M151A1. I t does not have a S/N plate on the dash. IT has a plate on the motor (Engine) ORD: 87544?1 S/N 90502 also some other number DA 20413 AMC 875?6 (T)
Under the Hood ORD #8754459 BUDD S/N # 71578/ Any guidance on web sites.

Thank you
Michael

PS I need a grill.

Welcome. Your only hope for finding the true vehicle serial number or "VIN" is by sanding the sides of the hood and looking for the Army registration number, which on A1's built by Ford, is the same as the VIN. The engine and Budd body numbers cannot be crossed to the VIN. By sanding, I mean EXTREMELY carefully removing paint layers one by one.

Thank you.