Eagle 445642546385 – Chevrolet BB 1Pc Rear Seal 4.250in Stroke Internal Balance Forged 4340 Steel Crankshaft

4340 CRANK CHEVY BB 4340 1 PC 4.250″ STR

Forged 4340 Steel Crank – Chevrolet 454, 1PC REAR SEAL, 4.250″ Stroke, INTERNAL BALANCE.

Eagle forged 4340 steel Cranks feature a non-twist forging, .125″ fillet radiuses for superior strength so chamfered / narrowed bearings required, nitrided surface and micropolished. Intended for the most demanding applications.

Balance Type: InternalCrankshaft Stroke: 4.250 inEngine Stroke: 4.25Flywheel Bolt Count: 6Flywheel Register Diameter: callIntended Balance: internalMain Journal: 2.749 inMaterial: Forged 4340 SteelMinimum Rod Length: 6.385 inPilot Bore Diameter: 1.094 inRear Seal Diameter: callRod Journal Width: 2.000 inRod Journal: 2.2 in.Snout Diameter: 1.6 in.Target Bobweight: 2350g