Dear Leroy;
That (Nash) may have been it. It was a late 40s or early 50s engine.
Larry;
The 'horizontal opposed' engines (VW, Porsche. BMW & most single engine aircraft) run millions of hours W/O any major problems.
On the 'early' VW when abused with (high compression) the studs pull out like you mentioned.
More trivia; During WW II that engine powered unmanned planes that "anti-aircraft" gunners used for practice. Most were used after hitting the ground etc.
Happy trails.
