If anyone is serious on this car I know where there's a 68 L36 from a B body rebuilt and ready to go. However it's modified including aluminum heads. No idea on the price.
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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles
1966 Grande Parisienne, 396 1 of 23 factory air cars (now converted to a "factory" 4 speed)
I notice the seller referred to it as a "money car". True enough, but it is going to take a lot of it to make it worth it. Money Car sounds better than Money Pit. Good thing these cars are simple.
I'm already working on some '68s but they are pictures. They take up less space and I can change my mind on direction without financial penalty.
In the meantime, here's a '67 Biscayne 4-door that I turned into a 2-door back in '06: