Cast or Forged Pistons

[Overmod]

There is a discussion of pistons in Kettering's SAE paper on the development of the 567 engine.

[bogie_engineer]

EMD two-stroke diesel engines use cast iron for pistons and steel forgings for rods. Crankshafts are forged. The cylinder block is a welded fabrication made up of forged, cast and rolled steel sections.

Dave

[GP-9_Man11786]

Do diesel locomotives use cast or forged pistons and rods in their prime mover? or does it depend on the model or builder. I know in performance cars, forged is preferable to cast.