Dec 31, 2010 #1 A AMCKen Senior Airman 400 152 Oct 24, 2008 Edmonton, Alberta, Canada What is the correct bore a stroke for this engine? Two sources have different figures. Pratt Whitney R-2060 ? Wikipedia says 5 x 5.25 for 2061.7 yet that site has the below for an external link and it says different: http://www.enginehistory.org/Convention/2006/Presentations/McCutcheonK/PWLC3_1.pdf - 5.25 x 4.75 for 2056.5 thanks all, and Happy New Year. : )
What is the correct bore a stroke for this engine? Two sources have different figures. Pratt Whitney R-2060 ? Wikipedia says 5 x 5.25 for 2061.7 yet that site has the below for an external link and it says different: http://www.enginehistory.org/Convention/2006/Presentations/McCutcheonK/PWLC3_1.pdf - 5.25 x 4.75 for 2056.5 thanks all, and Happy New Year. : )