4340 Forged Superlight Crankshaft 340 Main Journals

Name: 4340 Forged Superlight Crankshaft 340 Main Journals
Brand: SCAT
SKU: 942-434020-3
Price: 3129.41 USD
Availability: InStock

^$3,129⁴¹$3294.12You Save$164.71

Ships on 09/09/2026

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Chrysler - Small Block

340 Main Journals

340 Main Journals
4.000'' Stroke
6.123'' Required Rod Length
2.125'' Rod Journal Diameter
1.875'' Rod Journal Width
Internal Balance, May Require Heavy Metal
If the internal counterweights are too light, weight must be added to the crankshaft counterweights by filling them with heavy metal or similar weights.

Reduced Rotating Weight
to Increase Horsepower!

Same innovative features as Scat's 4340 Forged Lightweight Crankshaft, but it is pounds LIGHTER!

This race crank starts life as a Scat spec'd forging before it is precision cut, machined and ground before it is nitrided hardened for superior wear resistance. Key features of the Superlight crankshaft are the aero wing counterweights, pendulum undercut counter weights, rod journals are bridge for increased strength and lightening holes in all rod journals, large radius on all journals, straight shot and chamfered oil holes make this crankshaft super light and the racers top choice!

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Scat has been manufacturing and distributing crankshafts, connecting rods and engine components for the automotive aftermarket since the early 1960's. This tradition continues to this day with their 42,000 square foot manufacturing facility in Redondo Beach, California, USA! All Scat engine components are made with quality at the forefront, starting with only the best materials. All of their highly trained and skilled craftsman use Scat's innovation, creativity and dedication to produce you the absolute best parts possible.