Oh, and of course any Turbo 400 B body in 66 was a big block. If it has both sets of crossmember mounts on the frame it was a rat, assuming they weren't welded on by someone later.
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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)
Another thing a guy could do is try a 283 engine mount on the frame stand for the mount. A 283/327 mount is slightly narrower and shorter (height) vs. a big block mount. (At least I hope I am remembering that right, I know there is a difference and I think that's how it goes.)
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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)
