Is it rare Poly 318?

No problem. That's the great thing about this place. No one is exempt or all knowing. Considering the many engine options of the 50's from the Chrysler camp, it reminded me of GM with all there offerings until they put a clamp on things and said "That's it! Corprate engine for everybody!" And they all got a S/B Chevy.

While there was a huge interchangabilty within the Chrysler camp witch was great, you could have so many different engine displacements, they still were creating alot of extra work with there own size engine.
Money out the window. But verity abounded and flavors were a basken robbins like carnaval.