performance · FF-0012

Why do Ford Flathead builders want a 1949–1953 Mercury crankshaft?

Steve explains that the 1949–1953 Mercury four-inch-stroke crankshaft is a logical displacement and torque upgrade during a Flathead rebuild compared with the Ford 3.75-inch-stroke crank.

Expert

Steve Coppock

Evidence

expert attributed

Component

crankshaft stroke

Applicable scope

1932–1953 Ford V8 3.75-inch stroke; 1949–1953 Mercury four-inch stroke