Bruce’s 1942 WLA Military 45 ci Motor Start-Up Posted by Highway Classics on January 25, 2017 Posted in: Engine Shop. Tagged: 45, Engine Rebuild, Flathead. This motor has been completely restored to original military spec. All colors, plaiting and painted parts are correct. Posts navigation ← 1941 Knucklehead Motor Start-Up Pete’s 107 ci S&S Motor Rebuild and Start-Up →