But is yours F marked ?
April 30, 1942 changed to new style oil pan at the 25755 th or 25855 th GPW motor. ( Notes are unclear which is the correct number at this time )
May 1, 1942 change from using new style oil pan 100 % of time to 50% new style and 50% old style.
Sept. 16, 1943 new style oil pan part # 6675 being used on all GPW motors. This started with the 146630 th motor.
Sept. 30, 1943 150783 th GPW motor is first motor with inside painted oil pan.
