It took about 3 hours to install the headers. We had to lift the motor up in the air to get the headers in without scratching them. It was a pain on the steering box side and also had to disconnect the stearing tie rod. It passes through the header pipes.
I'm glad I got the ceramic coated headers, because they will last for a long time and hopefully won't rust before 10 years. I don't want to do that job again.