Intake manifold question

No intake other than a Poly engine intake will interchange. They are their own animal if you will. They made a few different sizes of them. The early Poly 277 and 315 cubic inch engines comes to mind as well as the 318. I think they made a couple more sizes but that's all I the ones I remember. Most likely all you'll be able to find is a 318 intake cause the others are so old and being they were generally only 2 barrel intakes people don't generally keep that stuff laying around for decades. Try posting a want ad in the want ad section. I bet someone has one laying around.