Eagle · New
Eagle Chevy Big Block 396/427 Stock Stroke Forged Crankshaft
MPN 439637666135 · Store SKU eag439637666135
Supplier stock checked 11/7/2026, 4:21:25 AM UTC. Adding a part does not reserve it.
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Product details
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. Forged 4340 Steel Crank - Chevrolet 396/427. 4340 Crank Chevy 396 3.766" Stroke
Manufacturer fitment & guides
- CHEVY 396
- Manufacturer-supplied application summary from Turn14; this may not be an exhaustive fitment list.
Part-specific notes
- California Proposition 65: Y