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Scat F43 Series Crankshafts

5.0 out of 5 stars 2 Customer Reviews

Scat introduces 4340 forged crankshafts for your Chevy the F43 series. These super-lightweight crankshafts are nitride-hardened for superior wear resistance.

Features include:

* Straight shot and chamfered oil holes
* Profiled counterweights
* Pendulum-cut counterweights
* Gun-drilled main line hole for lightening and equalization of crankcase pressure
* Four lightening holes

Showing In Stock Items. Show All 1 Items.

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Scat F43 Series Crankshafts 4-400-4000-6000-21LW

Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 4.000 in. Stroke, Chevy, Small Block, Each

Part Number: SCA-440072LW

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

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