Material:Forged 4140 Steel. Eagle forged 4140 steel cranks feature a non-twist forging. 125" fillet radiuses for superior strength so chamfered / narrowed bearings required, nitrided surface and micropolished.
Eagle Crankshaft 545440026135; Forged 4140 Steel 4.000 in. for Chevy
Eagle Crankshaft 435140006200; Forged 4.000 in. Stroke for Ford SBF (351W Mains)
Eagle Crankshaft 534740006100; Forged 4140 Steel 4 in. Stroke 58t for Chevy LS
Eagle Crankshaft 435238506200; Forged Steel 3.850" Stroke for Ford 351W SVO
Eagle Crankshaft 445542106625; Forged Steel 4.210" Stroke for Pontiac 455 Mains
Eagle Crankshaft 440034805700; Forged 4340 Steel 3.480" Stroke for SBC 400 Mains
