02/19/2026
To say this has been a long time coming, would be an understatement. These new Simplex 50hp (short stroke) cylinder block castings are the representation of a tremendous amount of work and effort by all involved. This included a draft pair, that needed some design rework.
Working from original parts, one good, one cracked, the reproductions produced are remarkably accurate. The broken part was sectioned as shown, to fully understand the internal shapes. After thorough inspection, measurement, etc here at the shop, they are off to machine.