Moss and Bill Hirsch both offer the engine enamels on the Healey light green metallic, don't know about a paint code, the Moss paint I used a spray can and was a good quality enamel, it was as I recall slightly lighter than the paint on my motor, but I can't say uf the paint on the old motor was original. I know a lot of people use it.
I have not used the Bill Hirsch paint, but I think it is a different product, I have used some of their other Bill Hirsch products and been pleased with the quality.
"Greg"