47mm bore need to match a head

Hey so I got a guy working on getting a kit for one of my Robins. The stock cylinder is 40mm. The polini kit is a 47mm. I dont believe it comes with a head. I think I am going to have to find that on my own. So does anyone know if I can match the cylinder (47mm) to a hi comp head or something... off of a puch kit, or some other brand. I would imagine if there was a head with a 47mm base, then it would match up... but I figured maybe some other people might have some useful info or could just help me out trying to find something.

Thanks in advance

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