Eagle "ESP" Forged 4340 Steel Crankshaft - SB Chevy - 3.480" Stroke - 350 Mains - Internal Balance - 1875 Bobweight - 4340 - 5.7" Minimum Rod Length - Late (1 Pc Seal) SB Chevrolet IH200020 AN-10 size with a 40

AN-10 size with a 40 micron stainless steel element and black anodize finish

1980-1985 Chevrolet K5 Blazer

Chevrolet: Sonora 03 - 06 5

Flows 15 Percent Better Than Stock

Eagle "ESP" Forged 4340 Steel Crankshaft - SB Chevy - 3.480" Stroke - 350 Mains - Internal Balance - 1875 Bobweight - 4340 - 5.7" Minimum Rod Length - Late (1 Pc Seal) SB Chevrolet IH200020 AN-10 size with a 40Eagle 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