Eagle · New
Eagle Chevy BB 1Pc Rear Seal 4.500in Stroke Int Balance Center Counterweight Forged Steel Crankshaft
MPN 445645006535 · Store SKU eag445645006535
Supplier stock checked 11/7/2026, 4:35:58 PM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
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, 4.500" Stroke, CENTER COUNTERWEIGHTED, INTERNAL BALANCE. 4340 CRANK CHEVY BB INT BAL1 PC 4.500"
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