The Eagle cast crankshaft for Chevrolet 400 is an internal-balance crankshaft with a 3.75in stroke and .092" fillet radiuses that increase strength while accepting OE replacement bearings. Recommended for pump-gas, naturally aspirated, non-competition road cars, this cast crank offers an upgrade path from worn OE units while preserving common bearing fitments for rebuilds.
Eagle Chevrolet 400 Small Block 3.75in Stroke Internal Balance Cast Crank Shaft