I decoded the VIN and this car was a factory small block car the motor seems to fit nicely even with headers. Without knowing what too look for I can't tell any difference between the K-frames. I did notice that the car with the 440 in it does not have an oil dipstick and I can't see behind the the motor mount to be able to tell why. Did all 440's have provisions for a dipstick on the driver's side of the block ? I hope so as I plan to use this motor in my car.