That is correct, but due to the changes in the automatic, only '59, '60, and '61 will easily fit your car. I think that you can make the newer years work, but you would have to re-use your crank shaft. Paul In a message dated 3/1/2004 7:46:03 PM Eastern Standard Time, thulse@xxxxxxxxxx writes: > Ok guys, > I have been checking and reading a lot about the 413's. If I am correct the >1959-1965 Imperials all used the 413. Is > this correct? I have a few leads for good motors. > > Thanks everyone > Tim