Dating a Gray Marine engine

[ErikBenson]

Anyone able to help me date my 'new' engine please. It is an Express 4 - 140. No: F2340

The Paragon transmition No : Model no: WR020
serial no: 3G7537


It could be late '40s or early '50s anyone know ?

 

[timtap]

Fill in the form at Gray marine parts .com and they will get back to you......