Aluminum slant block

He poured aluminum into the water jacket to make the deck solid in the "Twiggy build thread". He also did a similar, single piece around the tops of each cylinder in another build but it wasn't very effective. Thats when the discussion later on started by me mentioning doing the "Honda" cylinder girdle that captures all 6 cylinders at the same time. I think by far him pouring the deck solid with aluminum would have had the best chance for success but it failed as well...

I think his consensus after all these attempts to make the aluminum block better was that they are better suited for a restoration build and performance builds are better with the cast iron blocks.....