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Home > Sprint & Midget Parts > Engine Parts & Components

4340 FORGED SCAT CRANKSHAFTS

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

Designed for 5.7" rods or 6.0" rods. 383 crank is internally balanced as a 350.

4340 Forged Scat Crankshafts
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Application

If you are going to run 915-15500 or 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 #
Description
Units
Price 
   
Qty
91515500
4340 Forged 350 Scat Crank
3.48" stroke - 350 mains - 5.7" rods
EA $598.99  

91515550
4340 Forged 383 Scat Crank
3.75 stroke - 350 mains - 5.7" rods
EA $598.99  

91515525
4340 Forged 408/434 Scat Crank
4.00" stroke - 350 mains - 6.0" rods
EA $598.99  

91515575
4340 Forged 434 Scat Crank
4.00" stroke - 400 mains - 6.0" rods
EA $598.99  

Suggestions
757M338-STD
Clevite S/B Chevy P Series Large Journal Main Bearings
  ST $26.99  

757R324-STD
Clevite 400 S/B Chevy P Series Large Journal Rod Bearings
  ST $21.99  

 

Some parts are not legal for sale or use in California on any pollution controlled motor vehicles.

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Speedway Motors, Inc. | 340 Victory Lane | Lincoln, NE 68528 | 1.800.979.0122