LS Flexplate – 14″ OD


  • Outside diameter 14″
  • 6-bolt crank flange bolt pattern
  • 11.062″ converter bolt pattern diameter
  • 1997 and newer LS engines
SKU: 12654640 Categories: ,

Flexplate – 14″ OD

P/N 12654640

  • Year of Engine: 1997 and newer
  • Outside Diameter: 14
  • Crank Flange Bolt Pattern: 6-bolt LS pattern; 3.110″ (79mm)
  • Converter Bolt Pattern Diameter: 11.062″ (281mm)
  • Starter Ring Gear Teeth: 168
  • Flexplate used for LS engines
  • Fits stock LS-4L60 family torque converter

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


Flexplate – 14″ OD

12654640 Chevrolet Flexplate

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