As close as I can get is: #1851509 chambers int exh year CID 1851509 73.5cc 2.08" 1.6" 1959 361/383/413 HP http://www.moparpages.com/tech/articles/tech2.html Bill & Tami Roddick 1964 Imperial Crown 4DR HT 1972 'Cuda 340 (Tami's car) 1995 Concorde