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This Eagle cast crankshaft is a direct‑replacement Chevrolet 400 small‑block crank with a 3.75" stroke and external balance. The cast design offers an upgrade path from an OE crank: .092" fillet radiuses increase strength while retaining compatibility with OE bearings. Recommended for pump‑gas, naturally aspirated, non‑competition road cars, it balances durability with serviceability for street engines.
Eagle Chevrolet 400 Small Block 3.75in Stroke External Balance Cast Crank Shaft
