Q:I have a 327 in my '31 Ford that features nearly the same cam and components as the one you referenced recently in Pit Stop (Nov. '12). Since a 1.6:1-ratio rocker arm will push the valve a little ...
This file type includes high resolution graphics and schematics when applicable. The images above are simple cross sections of a typical spool valve (left) and a poppet valve (right). (Courtesy of ...