how to tell if your 273 car was originally 2 or 4 bbl?

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camarocasanova

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I have found my new to me 66 dart has the original 273, and the vin code shows a 273, but no way to know if it was originally a 4bbl car. The car has the correct 4bbl intake, but has a weber 500 cfm 4bbl and does not have the finned valve covers. So that makes me think it was an original 2bbl car but I do not know anything more. It has had the engine rebuilt, balanced and blueprinted with a nice cam to my knowledge though. It sure shreds like it has at least 235 hp.
 
Even with the cast iron 4v intake, finned valve covers, dual point distrbuter, etc.. you still can't tell if the dome top pistons are in there. Well maybe with a pen camera in the plug hole you could tell.
 
I don't see the finned valve covers just plain ones, and I have not looked closely at the distributor, I am assuming this was an original 2bbl car as it is, but I think the info you gave me should help.
 
Check your fender tag. If original 66 273 4BBl the number under the AB on the tag will be a 32 if a 2bbl it will be a 31.

Oldschoolcuda
 
Welcome to FABO and welcome to the 66 Dart Club. There's quite a few of us
here. toolmanmike
 
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