I dunno.
but if you are interested, I am willing to sell my 66 caprice SS ... 427 big block, 750 horsepower 411 posi rear end, manual with a 65 pound racing clutch... midnight blue, silver flake paintjob -
Ive got airbags for it too & I'll throw em in for a little more, they are not installed.
hit me on the PM if your interested.