LSA 6.2L Bare Block


  • Direct replacement for2009-2012CadillacCTS-V6.2Lsuperchargedengine and2012ZL1Camaro
  • 6-boltironmainbearingcaps
  • 4.065″finishedbore
  • Rated for more than 550 horsepower

Available on backorder

SKU: 12673476 Categories: ,

LSA 6.2L Bare Cylinder Block

P/N 12673476

  • Direct replacement for 2009-2012 Cadillac CTS-V 6.2L supercharged engine and 2012 ZL1 Camaro
  • Production cast-aluminum block with iron sleeves
  • Production oiling system
  • 6-bolt iron main bearing caps
  • 9.240″ deck height
  • Not for use with LS7 or LSX-LS7 heads
  • 4.065″ finished bore (103.25mm)
  • Includes oil squirters (8) for piston cooling
  • No provision for active fuel management
  • Rated for more than 550 horsepower

Supersedes old P/N 12623968.

Weight 110 lbs

LSA 6.2L Bare Block

12673476 Chevrolet Cylinder Block

The Chevrolet Performance LS-Series cylinder block is the foundation for the serious performance achievements that are driving a new generation of street and racing enthusiasts. Features include a deep-skirt casting (the block side extends below the crankshaft centerline); 6-bolt cross-bolted main caps, strong and lightweight aluminum alloy casting (most production blocks) and provisions for the latest in engine control management. The cam-in-block configuration brings inherent torque to every LS engine, with production-based blocks capable of supporting combinations of 500 horsepower or more. The Corvette ZR1’s unique 6.2L block, for example, supports the engine’s 638-horsepower rating. Chevrolet Performance’s high-performance iron LSX cylinder block supports more than 2,000 forced-induction horses!

Whether you’re building a mild street engine or an Outlaw racing engine, starting with a strong LS cylinder block brings the assurance that you’ll make the power you need with a durable foundation.

Supersedes old P/N 12623968.

GM Parts and Components carry a 12-month parts-only limited warranty unless otherwise noted.


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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