Eagle · New
Eagle Chevrolet Big Block 454/502 Forged Crankshaft 4.250in Stroke
MPN 445642526385 · Store SKU eag445642526385
Supplier stock checked 11/7/2026, 4:07:22 AM UTC. Adding a part does not reserve it.
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Product details
Eagle forged 4340 steel center-counterweighted Cranks feature a non-twist forging, center counterweights for added stability at high RPM and high-power applications. 125" fillet radiuses for superior strength so chamfered / narrowed bearings required, nitrided surface and micropolished. Intended for the most demanding applications. Forged 4340 Steel Crank - Chevrolet 454, 1PC REAR SEAL, 4.250" Stroke, CENTER COUNTERWEIGHTED, INTERNAL BALANCE. 4340 CRANK CHEVY BB INT 1 PC 4.250" STR
Manufacturer fitment & guides
- CHEVY BB
- Manufacturer-supplied application summary from Turn14; this may not be an exhaustive fitment list.
Part-specific notes
- California Proposition 65: Y