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 14 Items.

Results 1 - 10 of 10

Scat F43 Series Crankshafts 4-350-3750-6000-20LW

Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 3.750 in. Stroke, Chevy, Small Block, Each

Part Number: SCA-435061LW

Not Yet Reviewed

Estimated Ship Date: Apr 17, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 17, 2026 if ordered today

Scat F43 Series Crankshafts 4-350-3750-6000-21LW

Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 3.750 in. Stroke, Chevy, Small Block, Each

Part Number: SCA-435062LW

Not Yet Reviewed

Estimated Ship Date: Apr 17, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 17, 2026 if ordered today

Scat F43 Series Crankshafts 4-350-3875-6000-20LW

F43 Lightweight

Part Number: SCA-435065LW

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 16, 2026 if ordered today

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: Apr 17, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 17, 2026 if ordered today

Scat F43 Series Crankshafts 4-350-3625-5850-20LW

Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 3.625 in. Stroke, Chevy, Small Block, Each

Part Number: SCA-435051LW

Not Yet Reviewed

Estimated Ship Date: Apr 17, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 17, 2026 if ordered today

Scat F43 Series Crankshafts 4-350-3480-5700-18LW

Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 3.480 in. Stroke, Chevy, Small Block, Each

Part Number: SCA-435020LW

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 20, 2026 if ordered today

Scat F43 Series Crankshafts 4-350-3500-5700-18LW

Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 3.500 in. Stroke, Chevy, Small Block, Each

Part Number: SCA-435030LW

Not Yet Reviewed

Estimated Ship Date: Apr 21, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 21, 2026 if ordered today

Scat F43 Series Crankshafts 4-350-4000-6000-21LW

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

Part Number: SCA-435072LW

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 17, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 17, 2026 if ordered today

Scat F43 Series Crankshafts 4-350-3335-5700-20LW

Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 3.350 in. Stroke, Chevy, Small Block, Each

Part Number: SCA-435011LW

Not Yet Reviewed

Estimated Ship Date: Apr 17, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 17, 2026 if ordered today

Scat F43 Series Crankshafts 4-350-3480-5700-20LW

Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 3.480 in. Stroke, Chevy, Small Block, Each

Part Number: SCA-435021LW

Not Yet Reviewed

Estimated Ship Date: Apr 17, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 17, 2026 if ordered today

Page 1 of 1