The Eagle forged 4340 center-counterweighted crank is intended for demanding Chevrolet big-block applications such as the 396/427, offering non-twist forging, center counterweights and 125" fillet radiuses for added strength. The nitrided, micropolished surface and forged construction target high-RPM stability and durability for heavy-duty or high-power engines where a center-counterweighted crank is required.
Eagle Chevy Big Block 3.766in Stoke - Internal Balance - CCW - Forged 4140 Steel Crankshaft