Suzuki 2 Strokes

there's a chance my cylinders are too beat up to use again, I have noticed that in later years they angled the cooling fins ( my bike is a 1970) is everything else on the later cylinders the same, will they bolt right up, ? i.e the oil jackets anything else I should know ? thanks

They bolt up the same, but there was some different jetting in the late type with auxiliary exhaust ports. The type you have in now do they have aux ports?