I had a friend who did the SBC swap and ended up with a car that was a little too twitchy for him so he left it parked most of the time. But he got his back up if anyone suggested he was afraid to drive it.
Jim Halsey, the CIO at Warner Bros, has a 240Z with a Viper V10 wedged into it. He had to have the firewall moved back to accommodate it.
Here are a couple of photos from back in 2012 when I was there on business.
And a link to a post of a post describing the build:
