Originally Posted by mecpgh
Sure that is true but has nothing to do with the requirements needed for bolt on accessories, access to fasteners inside the block , etc. your talking about a theoretical one off, stripped bare bones block, in which makes no sense in the present context.
Uhhh, yeah exactly. Subaru made just a few of these engines in anticipation of F1 2021 rules that were created in an attempt to reduce engine output even more. The result was a 4 cylinder block made entirely of Titanium. But due to some logistical error at FHI, it ended up in James' car.