Engine, Transmission & Header Install

That's how I would recommend it, too. I'm messin with slant sixes right now and they come out and go in easy from the top. Now, if I had a show quality paint job, I might do it from underneath.

Being a big block, removal and installation from underneath is all I would recommend. Do it slowly, like an inch at the time. Walk around and look at everything. Don't get in a hurry and you'll be fine.