Need advice: 318 or 340 for a 68 Dart?

madscientist said

I will never understand why you would pick the 318 over a 340. Or a 360 over 340.

When will the Chrysler people learn bore size is where it's at. That's why a Predator on a BBM won't run like Big Chief's on BBC. You can't expect a 4.5 bore to run with a 4.65 bore?

Go with the biggest bore you can get.

Always.

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I might be mistaken, but I thought the 360 shares the same bore size as the 340 (?) if that is the case, a 360 could be somewhat considered a stroked 340! Whatever the case, a 360 is not one of his options. We don't know a lot about his options, limitations, and variables, but my recommendation would be athe 318 with a 340 cam. My last engin had that combo, and it went pretty good.