Check out my car and talk to me about 318/340 swap

Hey folks! First post here! My dad and I start rebuilding this when I was 16. We just finished last year. It has the original 318 with 360J heads and an edelbrock 4 barrel carb, bigger cam, original 906, 8 1/4 rear end and discs up front.

After we finished building the engine and tranny and getting it set in place and other stuff built around it, we found a X heads 340. The guy we got it from said the number on the block matched to a 69 charger. He had just pulled it from an 80s ram charger.

So now that I’ve been able to cruise with it for a bit I’m starting to think “what if” about the 340. Assuming everything is good in the engine (or I have it rebuilt) it should bolt right in place on the 904 right?

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