CHRYSLER 300 CLUB INTERNATIONAL, INC. 300J 1963 300J Overview Production 400 Coupes Body and Chassis Body Style 2-Door Hardtop Powertrain Engine 413 cu in 390 V8 Transmission TorqueFlite 3-Sp Auto or 3 sp manual Dimensions Wheelbase 122 in Length 215.5 in Width 76.2 in Further restyling for the 1963 300J (the letter “I” was skipped because people would confuse it for the numeral “1”) left the car with a smoother, more angular 1960s look. This body design was the last one styled during Virgil Exner’s term as Chrysler’s styling chief. The letter-series convertible was dropped, leaving the hardtop. The only engine available was the 413 cu in (6.8 L) ram-induction V8 fitted with short ram intakes, cast iron exhaust headers, and a larger diameter exhaust system. This resulted in an advertised increase of 10 HP from 1962 and translated into spectacular performance, especially at high rpms. The 300J was capable of a standing quarter mile time of 15.4 seconds with a terminal velocity of 97 MPH with the rapid shifting automatic transmission. An optional manual transmission was installed on only seven cars. The 300J was the last letter car to feature a 150 mph speedometer and standard leather upholstery. written by Tony Rinaldi and Carl Bilter Click here for production data.