LS-Series Pistons, 4.000″ Bore


  • 4.000″ bore
  • Standard rod length
  • Hypereutectic LS2 and LQ9 replacement
  • For 6.0L engines
SKU: 19178305 Categories: ,

Piston – LS2 and LQ9

P/N 19178305

Hypereutectic LS2 and LQ9 Replacement.

  • Engine size: 6.0L
  • Bore size: 4.000
  • Rod Length: Standard
  • Pin Type: Floated
  • Compression Ratio: 10.9
  • With Chamber: 65

Piston – LS2 and LQ9

19178305 Chevrolet Piston

4.000″ Bore

Premium-quality hypereutectic aluminum alloy pistons are used on most production LS engines (the LS9 supercharged uses forged aluminum). They are lightweight, durable and promote quieter operation. Chevrolet Performance offers production and oversized pistons for many applications. They’re sold individually, unless otherwise specified.

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