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Product Summary

350, 383, Forged 4340 Steel Crankshaft Material

  • Designed and engineered at SCAT
  • Has straight shot & chamfered oil holes
  • Features lightening holes in all rod throws
  • Designed specifically for 2-piece rear main blocks
  • It is nitride hardened for superior wear resistance

Key Specs

MFG. Part #4-350-3750-5700
BrandScat

Need To Know

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Details

As you make more and more power it becomes more important to use quality parts. These Scat 4340 forged steel cranks will help keep your motor alive.

  • For 2-piece rear main blocks
  • 2.100" rod pin
  • 52 lbs.
  • Straight shot & chamfered oil holes
  • Nitride hardened for superior wear reisistance
  • Lightening holes in all rod throws
  • Large radius on all journals
  • Heat treated, shot peened
  • Designed at SCAT
  • Engineered at SCAT
  • Inspected & micropolished at SCAT

Note: If you are going to run 915-15550 in a sprint car motor, you must have the crank flange turned down prior to balancing the crank to allow it to go through the motor plate. 

Item Details

3.75" stroke - 350 mains

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

Specifications

KEY SPECS
MFG. Part #4-350-3750-5700
BrandScat
GENERAL
Crankshaft MaterialForged 4340 Steel
Rod Journal Diameter2.100"
Rear Main Seal Style2-piece
Weight52.0 lbs.
GTIN Code846091011637
Sold in QuantityEach