The BLH S8 was an 875-horsepower (652 kW) diesel–electric switcher locomotive.

Of these, nine were calf units built for Oliver Iron Mining Company in Minnesota.

A tenth calf had been built for them on order, but when delivery was refused, it was fitted with a cab, and converted to a regular S8.

[1] Only two intact examples of the S-8 are known to survive today, one of which is owned by a railroad museum, while the other is the property of a railway historical society.

This diesel locomotive-related article is a stub.