Re: He is refering to the block...
When I bought my 260Z, the original owner had blown the engine (idiot drove it without oil!). He put a new engine in it, it was an L28 with N42 head. He stuck with the 260Z carbies. They worked together fine, I think it was a direct swap with no problems (definitely no insurmountable problems). In fact the owner didn't even know it was a different engine, he thought it was identical to what was previously in there!
Since then I have put 240Z carbies on it. There were some modifications to the linkages.. but I got someone who knew what they were doing to do it.
eric