My 2000 Toyota Tundra (4.7L V8) was a VVT-i engine and was an interference engine. On the other hand, the same year the 3.4L V6 they put in the Tundras as the base engine was not.

In comparison, my 1991 Lexus LS400 (4.0L V8) has a non-interference engine. Strange that Toyotas FIRST V8 engine was a non-interference one, but that changed in 1998, when the Lexus switched to a VVT-i engine and it became an interference one. Still mixed thoughts on to whether the 95-97 LS400 is interference or not.