The red patterns are Glenn's, they should have been used years ago but now I have to cast some cylinders might as well have a hack at one and see what happens.
The other is the 175cc uniflow cylinder, another failure so it got cut in half to look what went wrong. A core slipped.
Now I have another stacked up ready to pour.
And here, some pictures of last weeks castings. Two more 360 cylinders and two Subaru EA81 four port cylinder heads
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