Eagle "ESP" Forged 4340 Steel Crankshaft - SB Chevy - 3.875" Stroke - 350 Mains - Internal Balance - 1855 Bobweight - 4340 - Must Use 6.000" Rod or Longer - Early (2 Pc Seal) SB Chevrolet AK113112S 2-1/2 in Width

2-1/2 in Width

1958-1958 GMC PM252

Engine Assembly Lubricant

Port exit dimensions:

Eagle "ESP" Forged 4340 Steel Crankshaft - SB Chevy - 3.875" Stroke - 350 Mains - Internal Balance - 1855 Bobweight - 4340 - Must Use 6.000" Rod or Longer - Early (2 Pc Seal) SB Chevrolet AK113112S 2-1/2 in WidthEagle forged 4340 steel cranks feature a non twist forging, . 125" fillet radiuses for superior strength so chamfered narrowed bearings required, nitrided surface, and micropolished to 2 ra. Intended for the most demanding application Eagle's commitment to quality and service has resulted in customer loyalty and satisfaction. This, in turn, has fueled rapid growth over the years. Eagle added crankshafts to our lineup a few years later as well as