LS Flywheel – 14″ (359mm) OD


  • Outside diameter 14″ (359mm)
  • 6-bolt crank flange pattern
  • 11.5″ converter bolt pattern diameter (single disc)
  • 1997 and newer LS engines
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SKU: 12571611 Categories: ,

Flywheel – 14″ (359mm) OD

P/N 12571611

Used for LS engines with 6-bolt crankshaft flange.

  • Year of Engine: 1997 and newer
  • Outside Diameter: 14″ (359mm)
  • Crank Flange Bolt Pattern: 6-bolt LS pattern 3.110″ (79mm)
  • Converter Bolt Pattern Diameter: 11.5″ Single Disc
  • Starter Ring Gear Teeth: 168

Note: It is critical you use the correct design for your engine application.


Flywheel – 14″ (359mm) OD

12571611 Chevrolet Flywheel

1997 and Newer LS Engines

At the opposite end of the crankshaft from the balancer are flywheels and flexplates, which connect the engine to either manual (flywheels) or automatic (flexplates) transmissions. Chevrolet Performance offers both internally and externally balanced flywheels and flexplates.

Prop65WARNING: These auto parts can expose you to chemicals including phthalates and lead. Installing or using these parts can expose you to other parts containing these chemicals and to engine exhaust, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to