Mopar #'s Matching

OK, finally was able to take possession of the car and actually got to talk to someone who knew about it when it was purchased. Car was going to be a Drag car build and didn't come with an engine. The seller threw in a 273/2 with the deal, but I don't think they made a 273/2 Commando? Now knowing that the engine isn't the 273/4 Commando that I thought it was, I am thinking I am better off going with a 318, versus trying to get the 273/2 built up. Thoughts?

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