Eagle "ESP" Forged 4340 Steel Crankshaft - SB Chevy - 3.625" Stroke - Internal Balance - 5.700" Rod Length - 2.100" Rod Journal Boost / Vacuum Gauge Many spring manufacturers skip this

Many spring manufacturers skip this step

Military Spec Type III Hard Anodized Construction

This will lead to a false temperature gauge reading and major engine damage

49 in the quarter mile with stock tires

Eagle "ESP" Forged 4340 Steel Crankshaft - SB Chevy - 3.625" Stroke - Internal Balance - 5.700" Rod Length - 2.100" Rod Journal Boost / Vacuum Gauge Many spring manufacturers skip thisEagle forged 4340 steel cranks feature a non twist forging, . 125" fillet radiuses for superior strength so chamfered narrowed bearings required, nitrided surface, &amp micropolished to &lt 2 ra. Intended for the most demanding applicationForged AISI ASME certified 4340 steel with multi stage heat treatment for superior strength Service: Eagle connecting rods and cranks are designed and manufactured to our specifications. Some simply purchase generic