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You are here: Home > Crankshafts > Scat Crankshafts > Forged 4340 Steel
SCAT 4340 Crankshafts are machined from a premium 4340 steel and are heat treated for maximum strength and typically feature: Straight shot & chamfered oil holes, Nitride hardened for superior wear reisistance, Lightening holes in all rod throws Large radius on all journals, Precision ground, Heat treated, shot peened, All Inspected & micropolished at SCAT. For absolutely serious street and racing applications, these crankshafts are the only choice. They are perfect for high horsepower, torque and RPM's and work great for all levels of power adders. Weights available in Standard, Light Weight, Ultra Light and Q Light.
Chevrolet - 350 Small Block
SCAT manufactures five distinct Crankshaft types for hundreds of applications to fit every level of performance which includes 4340, and Cast Steel in a variety of strokes. Incremental strokes run from 3.250 to 4.000 allowing for cubic inch displacements that range from 327 to 408 cubic inches more info
Chevrolet - 400 Small Block
SCAT 4340 Forged steel crankshafts for the 400 Chevrolet block offer choices of stroke beginning at 3.500 and running up to 4.000 allowing for cubic inch displacements that begin 380 and run up to 434 cubic inches. Most strokes are available in Standard, Pro Series Lightweight, or Superlight allowing the flexibility to tailor your choice for anything from a Spec Class superlight to a heavily boosted beast. more info
Chevrolet - Big Block
SCAT 4340 Forged steel crankshafts for the 454 Chevrolet block offer choices of stroke beginning at 3.766 and running up to 4.750 allowing for cubic inch displacements that begin at 440 and run up to 557 cubic inches, assuming a 4.310 bore. Most strokes are available in Standard or Pro Series Lightweight, allowing the flexibility to tailor your choice for your particular application. more info
Chevrolet - LS-Series
Scat 4340 Forged steel crankshafts for the LS1/LS7 Chevrolet block offer choices of stroke beginning at 3.622 and running up to 4.250 allowing for cubic inch displacements that begin at 347 and run up to 454 cubic inches, assuming a 3.905/4.125 bore. Most strokes are available in Standard or Pro Series Lightweight, allowing the flexibility to tailor your choice for your particular application. more info
Chrysler - Small Block
SCAT manufactures five distinct Crankshaft types for hundreds of applications to fit every level of performance which includes 4340, and Cast Steel in a variety of strokes. Incremental strokes for the Small Block Chrysler run from 3.580 to 4.000 allowing for cubic inch displacements that range from 360 to 408 cubic inches more info
Chrysler - Big Block
SCAT manufactures five distinct Crankshaft types for hundreds of applications to fit every level of performance which includes 4340, and Cast Steel in a variety of strokes. Incremental strokes run from 3.750 to 4.500 allowing for cubic inch displacements that range from 440 to 542 cubic inches more info
Ford - 302
SCAT Crankshafts for the Ford 302 block are available as 3.000, 3.250, or 3.400 stroke models. They are each offered in either an Internal or External balance design and come in Standard Weight, Pros Series Lightweight, or Superlight series crankshafts. more info
Ford - 351 Windsor Main
SCAT Crankshafts for the Ford 351W block are available as 3.500, 3.750, 3.850, 4.000. or 4.100 stroke models. They are each offered in either an Internal or External balance design and come in Standard Weight, Pros Series Lightweight, or Superlight series crankshafts. more info
Ford - 351 Cleveland Main
SCAT Crankshafts for the Ford 351C and aftermarket block are available as 3.500, 3.750, 3.850, 4.000. 4.100, or 4.250 stroke models. They are each offered in either an Internal or External balance design and come in Standard Weight, Pros Series Lightweight, or Superlight series crankshafts. Cubic inch displacements range from 351 to 454. more info
Ford 4.6/5.4L Modular
SCAT 3.750 stroke 4340 crankshafts for the 4.6/5.4 Ford allow a stroker displacement of 5.0L in a 4.6L block. more info
Ford - 429/460 Big Block
SCAT Crankshafts for the Ford 460 block are available as 4.150, 4.300, 4.500, or 4.750 stroke models. They are each offered in an Internal balance design and come in Standard Weight, Pros Series Lightweight, or Superlight series crankshafts. They are also available with a BOSS 429 nose, as desired. more info