Looks like an inline 8 (based on the number of sparkplug wire thingies) from the fifties (based on the logo).
I don’t know that Maserati built inline-8s in the 50’s though. Not that I’m an expert
Δ
IEDEI 
Looks like an inline 8 (based on the number of sparkplug wire thingies) from the fifties (based on the logo).
I don’t know that Maserati built inline-8s in the 50’s though. Not that I’m an expert