Porsche flat-6 air-cooled racing engine, June 10-11, 1967
June 18-19, 1966 Porsche flat-6 air-cooled engine bay detail
Porsche 906 LH chassis '153', number 30, of Jo Siffert and Colin Davis.
Porsche 906 LH chassis '152', number 32, of Udo Schutz and Peter de Klerk.
Porsche 906 chassis '112', number 29, of Peter Nocker.
Porsche 906 chassis '112', number 229, of Peter Nocker