Would be nice to get them back! But most likely they will not come back since the tooling was modified and updated over the years. But, from what I was told once, the '72 SSlasher Chevelle had the Street Funny parts still in it. I have not had the chance to look at one to see if it is true.
It was really a response to the Ford 427 SOHC and it was more to get that engine banned. After they banned them both, Chrysler quickly killed the program. Only two engines where made and only one complete one survived. They turned the engine over with an electric motor to check valvetrain, but they never ran on fuel. Most of the design came from an aborted INDY engine program that didn't make it. I would be cool to see one run and get revved up to the expected 7000 RPM capability!