Just installed a set of headers on our 327 67 Impala. I was really amazed how easy they were to install and they fit great. :thumbsup: I did however have problems with the Mr Gasket alternator bracket. I had to re bend it to work. When I find something that fits right the first time I like to pass it on. Or when it doesn't . These headers should fit all 65-70 Impala, Belair, Biscayne. 2 or 4 door and wagons with small block engines.