identification · FF-0057

What does LB stamped on a Ford Flathead block mean?

Steve says 1936 was the first year for insert-style main bearings, replacing the poured babbitt of 1932–1935, and those blocks were supposed to be stamped LB. He warns the letters could easily have been stamped onto a 1935 block, because 1936 blocks are more desirable.

Expert

Steve Coppock

Evidence

expert attributed

Component

main bearings and block stamping

Applicable scope

1936 Ford Flathead V8