Bolted the heads down on the block so I can start to see where various things need to go! Photos soon.
Meanwhile for a break from the metal fabrication, its seeing if I can get the heater to fit time!
First the "air inlet assembly ducting" as its called in the shop manual.
This thing

Here's a temporary fit and you can see where the bottom of it is touching the firewall before it sits flush

So I need to cut the bottom off so it has a chance of sitting flush.
Here's the cut line planned to completely flatten the bottom

Here's my airsaw in action

Here's the bottom cut off flat

And a side view looking across the bottom showing the flat profile

I'll make a new base and bond it in, then produce a water drain hole.
Then its onto the other heater boxes...
Andy.