You know it was fully pro stuff by the way the block was mounted to the engine stand. I might have noticed, but would never mention, the excessive amounts of rust in the water pump mounting cavity. Oh......wait..... The cylinder head looked nice for a lawn mower.....but not something you want to last more than 50 hours.
This is the first time I've ever seen a 'aircleaner' that looked like it was up to the task and could handle serious airflow. Form follows function. Bravo! Bravo!