Re: PT Boat

Posted by Owen_Dyneto On 2013/6/5 12:23:42

I believe that engine is a Packard IM-1242 used in Miss America VI, and that photo was taken after winning the 1928 Harmsworth trophy, photo from the NAHC Collection at the Detroit Library. It was 1242 cubic inches (20.4 liters) with 4 valves per cylinder and netting a max of 600 hp at 3000 rpm. Bore and stroke were 5-3/8 x 4-9/16. Lots of details and photos of this and other Packard race boats and engines in Robert Neal's "Packards at Speed". Superb book, if you don't have it, consider buying it.