The 292's should be a direct swap on the manifolds, with the possibility of a mismatch of the exhaust pipe flanges. Some of the bigger ones used a 3-bolt exhaust flange and a bigger diameter exhaust pipe, but if they're both C-60's that shouldn't be a problem. The 230 intake/exhaust assembly will probably bolt on, but there will be carburetor, and possibly exhaust pipe differences to deal with. Good luck!
Jerry

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