I love these engines, but they may be the stupidest mass-produced design ever. Cases split side to side? No oil seal on the pulley end? 3 lousy main journals? No valve-seals?An oiling system only Rube Goldberg could love (oil bypass based on viscosity... seriously)?
Every time somebody starts to blather on about the "Sainted German Engineers", I want to grab their ear and drag them through a small-block Chevy so they can see how a real engine is designed.
It's possible to get them to make a lot of power, live a reasonably long life, and not leak oil by the gallons- but it'll become your life's work. Nobody will care, and sensible people will start to avoid you.
Call me Ishmael.