The engine number is stamped into the engine block and will identify it as an 19S or 19E (or 19US, but never seen one).
svopel said:What is the difference in engine blocks stamped "19E" and those stamped "19S"?
I have three blocks stamped "19S" and one stamped "19E".
Performance advantage? Sure is, the block is lighter......svopel said:Thanks Tom
That's the only difference visible to me also ... I was hoping for some kind of performance advantage ... LOL