I clamped all the bits of the firewall recess in place, and pulled the hood off to check I had plenty of clearance for the motor. I decided to join the top two halves together first so cut a piece of sheet metal that was long enough to allow me a bit of lattitude when I put the bottom two pieces on. I tacked the top edge first and gradually bent and hammered it into shape as I worked down the seam.

With it in the right shape, I clamped it back in place and decided on how far down I wanted the bottom edges to be. I cut a template from cardboard and transferred it to sheet metal before working my way slowly along the edges. It was a lot harder to keep it all in line so I needed to hammer it as I went. I did the same for the other side and then started to slowly fill the gaps in between the tacks. With it all done a quick test fit and it needed some shaping to clear bellhousing. I started to shape a bulge in it to give me enough clearance in case I go to a 4L80E when the 4L60E blows up. I was out of time then so called it a day.