I purchased this 1963 Comet near the end of June, 2015. This two door sedan (post, not hard top) has the S-22 package installed on it. It has an inline six and a C4 (three speed automatic transmission) and a rear end ratio of 3.5. Originally, the engine was a 170 but according to a note in the owner’s manual, the previous owner (who had deceased recently, which is why it was for sale) had put a new engine into the car in 1984. The engine is now the 200. Although no longer the original engine, it is still within the same engine family and is a better engine from the standpoint of performance and performance upgrades. True, most people would toss in a V8, but we’re not most people. Our inline 200 is within the same family as the 170 but once our modifications are installed, it will be a “hot six,” with the goal of being period to the decade inasmuch as possible–the same kind of hot rod I’d have done if I had had the time and money back in high school (back then it was a ’68 Chevelle with a 230 inline six). How often do you see that?