Re: Redline/Maximum Continuous Operating RPM - Packard 6 Cylinder Engines

Posted by Dave Kenney On 2016/2/24 13:10:00

My 1947 Super Clipper engine seemed to operate fine in up to about 55 without overdrive and past 70 in overdrive likewise with the 4.10:1 differential. The engine really needed a rebuild also but seemed content at the above mentioned speeds. As recent as the late 1960's many northern Ontario roads were still gravel.