1979 Kenworth W900 w KTA 600 Sound

Taking my dad’s 1979 Kenworth W900 with a KTA 600 in it out for a drive. We were told the 19 Liter Cummins came stock with 600 HP. We have also been told you can get 1,000 HP out of then without having to take the engine apart. That was a sweet startup! How long had it been sitting? Sounded pretty good for a Cummins. Love the old trucks! ?? Good stuff! ??

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