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The Manley Pro Series 4340 forged crankshaft for Chevrolet LS engines is a lightweight 4340 alloy-steel crankshaft with a 3.2622-inch stroke and a 58‑tooth reluctor, offered as a strong, balanced foundation for performance engine builds. Constructed from 4340 material with gun-drilled mains, lightened journals, heat treatment and nitriding, micro‑polished journals and 100% magnaflux inspection ensure accuracy and durability.
Manley Chevrolet LS Lightweight 4340 Forged 3.2622in Stroke Pro Series Crankshaft w/58T Reluctor
