SBM X block or R block

Mr. Sinister said
View attachment 1715950306 View attachment 1715950307 View attachment 1715950308 View attachment 1715950309 4.060 bore - 3.165 stroke (measured at piston travel) LSM bushed & keyed roller lifters 50 mm camshaft.

That is a beautiful engine. But I'm looking for a block to build a braket engine with. I have a W5 top end that I'm going to use.