Can someone tell me if the fin sizes decrease from 1960 to 64?? I have a series V v6 conversion and happy with it but I am a fin guy, (have a 60 Chrysler 300F and a 60 Windsor coupe). Was looking into a 2.8 conversion on an early car, have the M2 motor and rearend, now looking for a car. Like the bigger fins if had a choice.