Eagle BBC Cast Steel Crank - 4.250 Stroke 4704021-20-S A digital tach and speedometer

A digital tach and speedometer are also included in it's functions

review installation manual for reference

This unique system offers an equal distribution of forces under impact

and fuel lines

Eagle BBC Cast Steel Crank - 4.250 Stroke 4704021-20-S A digital tach and speedometerEagle cast crankshaft is an upgrade from an O. E. crankshaft. Recommended for use in pump gas, naturally aspirated, non competition road cars. Cast steel for strength improvement over cast iron. Service: Eagle connecting rods and cranks are designed and manufactured to our specifications. Some simply purchase generic products and package in their boxes without having any control or input in production. Eagle uses only certified steel in production of