Manley Performance man190190

Manley Pro Series 4340 forged crankshaft is a high-quality replacement crank made from 4340 alloy steel non‑twist forging and finished with micro‑polished journals. Each crankshaft receives stress relief, shot peening and 100% magnaflux inspection, plus multi-step heat treatment and nitriding for enhanced strength and longevity. Large radius journals and precision finishing reduce friction, making it suitable for demanding domestic engine builds.

Manley Chevrolet Small Block 350 4340 Forged 3.480in Stroke Pro Series Crankshaft