69 327 harmonic dampener

What is the correct size harmonic dampener for a 69 327. I know they are different after 67. There are different sizes that will fit, but does anyone know what is the CORRECT SIZE that came out on that year. I know you are thinking, measure the one on your 327 and replace it... I am not sure if it is the correct one... Any help would be appreciated... thanks

According to this chart from Damper Doctor, there was a 6 1/8" and a 6 1/4" damper used. If you are still undecided, give them a call and see if they can help, they're in the business of dampers.
http://www.damperdoctor.com/Merchant...egory_Code=CHE

Thanks for the help... I have emailed the Doctor and will go from there.. thanks, agian.