[Henry Schmidt]

Originally Posted by campbellcj

4-cylinder Porsche 911 engine! by cjcam, on Flickr

Originally Posted by sc_rufctr

These are cool but what's wrong with the 6 cylinder version?

Dean Polopolus originally built these engines as a high performance, "bolt-in" engine for the 356 chassis.
IIRC the first engine was installed in Gary Emory's wide bodied 356 vintage racer "El Diablo" that was quite often piloted by Milt Minter.