The Graveyard Cars show has used PPG Chrysler blue auto paint on the engines. Seems there is a PPG code for Chrysler corporate blue. From an old service manual the Corporate Blue color in PPG Ditzler is 12785, also DT8221 or 2423. This is an old code and not sure how well it crosses to today's formulas. If it does cross, perhaps you can cross reference the code with another manufacturer that sells paint online, like TCP global. Have them mix up a pint and spray from a Preval sprayer or there are touch up places on line that will mix up a spray can.