i bought my coupe a little over a year ago, the man i bought it from told me it was a 30 or 31?, it was last reg. in 1972 as a 31. but the rad. shell is stainless and has the blue oval on it and look's about the same age as the car, the fire wall where the sed. bowl mounts is flat [not indented], but the splash shield's over the running boards are two piece, the eng.# is 4349772 with no A or star in front of the no.# i was told that mean't the eng. was not org. to the car. Thanks for any help.