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 RS003C0106 1979-1989 GMC P3500

1979-1989 GMC P3500

Ford Compact Truck 1998-2011

1988-1989 GMC P2500

135 mA (Med)

250SL 1967

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 RS003C0106 1979-1989 GMC P3500Eagle 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