I've got a 59A flathead motor (cast in bell-housing, 24 stud,) and I have always been under the impression that the 24 stud was the Mercury motor. Then the other day some one who should kmow more than me (which isn't hard) told me; "No, yours is standard, the Mercury motor has a different crank."
Is he right? Is the Mercury a 4 inch stoke? And is there an easy way to tell without whipping a head off?
johnboy