Really enjoyed your tour bus vid with the 671 Detroit. I have a later model bus the PD 4104 with a 671, nothing sounds like these engines. Oldsters just smile when they hear us at a truck stop, youngsters say "what is that engine, it sounds like a beast" Some model 4104 buses came with restrooms, and they have a unique 671 sound as the rr tank sat just above the engine& by the time the sound came up from there and reverberated inside the medal walls of the rr it has an awesome sound especially on the models with dual exhausts.
Glenn

Thank you for approving my friend invitation. I know that Don Rodgers' truck has a 6-71 Detroit in it.

The sound of the old Detroit 6-71 was one of the best in the trucking industry. Eventhough they did a lot of screaming but they had a true truck engine sound!

Mooie film, jammer dat de bruutste FTF er niet bij was... Die reed in Kouderkerk.