Diagram of Ford 390 vs 428 crankshaft balancing using phantom co…

A dark blue technical diagram explaining Ford FE crankshaft balancing in seven captioned steps, each with a yellow 3D crankshaft render showing added, moved or deleted counterweights. The text contrasts the internally balanced 390 crank with the externally balanced 428 crank and works toward using a 'phantom' center counterweight to eliminate the front external counterweight.

AI caption January 2009 · Photo 247 of 465