Ah, the old Nordskrog conversion... They did sell a conversion kit back in the 80's. I remember HotRod magazine did a conversion on a 240Z using this kit. I think that this was 1983, 84, or 85. I saved that mag for many years, heck it was the mag that got me bitten by the Z bug. Anyway, about 1993, I called up the Nordskrog guys and they had the very last kit, which I promptly bought, although a few pieces were missing. It was a pretty good kit. Now the magazine and the kit are long gone, don't ask why unless you want to hear a 6-pack long story.
The last I remember about the Nordskrog guys was that they were into offshore boat racing.
The issue in question was Hot Rod mag, May 1985.