The Stovebolt Site Forums The Shop Area Engine Shop Is a 261 worth the trouble?

The 216 and early 235 engines were directed spray lubrication (and dippers) that fed oil to the rods.

Later 235s and all 261 had fully closed engine lubrication systems.

Earlier engines were true splash oil systems.

here is a little documentation of stovebolt engine lubrication from 1948-1953

here is a description of a full dipper lubrication of rod bearings (directed open-flow of oil at higher RPMs)

here is a "splash oil" system - it has dippers but no directed spray