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 24-CHL-N-13 Anodized black

Anodized black

2-layer lightweight construction 100% polyester shell with 100% knitted mesh interior

Vehicle Applications: 1957 thru 1981 Chevrolet Cars and Trucks 6/8 Cylinders

Special tube O-ring fittings convert GM Tuned Port Injection fuel systems to -6AN fittings

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 24-CHL-N-13 Anodized blackEagle 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