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The Manley Pro Series 4340 forged crankshaft for Gen III small-block HEMI offers a 4.050-inch stroke to convert 5.7L to 392 ci and 6.1/6.4L to 426 ci applications. It’s manufactured from premium 4340 steel and supplied with a 32-tooth reluctor option. Features include multi-step heat treatment and nitriding, micro-polished journals, gun-drilled mains, stress relief, shot-peening and full magnaflux inspection for durability in stroker builds.
Manley Chrysler 5.7L/6.1L Hemi 4340 Forged Crankshaft w/ 32 Tooth Reluctor Wheel
