production cylinder blocks

LS-LT-LSX PRODUCTION CYLINDER BLOCKS

12609999

GEN IV 6.0L CAST-IRON BLOCK

  • Direct replacement for LY6 and L96 production engines
  • Production cast-iron block
  • Production oiling system
  • 6-bolt iron main bearing caps
  • 4.000” bore
  • 9.240” deck height
  • No provision for Active Fuel Management
  • Supports 500+ horsepower

12602691

LS2 ALUMINUM 6.0L BARE BLOCK

  • Direct replacement for 2005-2008 LS2 Corvette, SSR, GTo 6.0L and TrailBlazer SS
  • Production 319-T5 aluminum block with iron sleeves
  • Production oiling system
  • Forged powdered metal 6-bolt main bearing caps
  • 9.240” deck height
  • Use only LS1, LS6, LS2, L92/LS3-style cylinder heads
  • 4.000” finished bore (101.6 mm) Provisions for Active Fuel Management
  • Great for stoker cranks for even more cubes
  • Tested to 450+ horsepower

12623967

LS3/L92 ALUMINUM 6.2L BARE BLOCK

  • Direct replacement for:
                2009-2012 L9H
                2010-2012 L94
                2008-2013 LS3
                2010-2013 L99
                2007-2008 L92
  • Production aluminum block with iron sleeves
  • Production oiling system
  • Use only LS1, LS6, LS2, L92/LS3-style cylinder heads
  • 4.065” finished bored (103.25 mm)
  • Provisions for Active Fuel Management
  • Great for stroker cranks for even more cubes
  • Tested to 500+ horsepower
  • Forged powdered metal 6-bolt main bearing caps
  • 9.240” deck height

12673476

LSA 6.2L BARE BLOCK

  • 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 550+ horsepower

12623969

LS9 6.2L BARE BLOCK

  • Direct replacement for 2009-2012 Corvette ZR1 6.2L supercharged engine
  • Production cast-aluminum block with iron sleeves
  • Deck plate honed
  • Production oiling system
  • 6-bolt steel main bearing caps with dowel pins
  • 9.240” deck height
  • Not for use with LS7 or LSX/LS7 heads
  • 4.065” finished bore (103.25 mm)
  • Includes oil squirters (8) for piston cooling
  • No provision for Active Fuel Management
  • Rated for 635+ horsepower  

19213580

LS7 7.0L CORVETTE BARE BLOCK

  • Direct replacement for 2006-2014 7.0L LS7 engine
  • Production 319-T5 aluminum block with pressed-in iron sleeves
  • Production oiling system
  • 9.240” deck height
  • For use with any LS or LSX series head
  • 4.125” finished bored (104.78 mm), deck plate honed
  • Siamese cylinder bores for large bore size
  • No provision for Active Fuel Management
  • Based on C5R block development
  • Tested to 500+ horsepower

19329617

LT1/LT4 ALUMINUM 6.2L BARE BLOCK

  • Direct replacement for 2014-2015 Stingray LT1
  • Production aluminum block with iron sleeves
  • Production oiling system
  • 9.240” deck height
  • Nodular Iron 6-bolt main bearing caps
  • Use only with LT1-style cylinder heads
  • 4.065” finished bore (103.25 mm)
  • Provisions for Active Fuel Management
  • Provision for direct fuel injection

12480030

ALUMINUM C5R RACING BLOCK

The ultimate GM aluminum LS block, the C5R was originally designed for Chevrolet’s factory-backed Corvette Racing program. It was developed to support more than 440 cubic inches and up to 900 horsepower – and has proven itself by powering Corvette team to endurance racing wins. This is a non-production, purpose-built cylinder block manufactured with proprietary materials and machined to the highest tolerances – and using premium, racing-spec hardware. If you’re looking for the ultimate aluminum cylinder block to support your horse-power desires, the race-proven C5R is it!

  • Premium “hipped” and X-rayed 356-T6M aluminum-alloy block casting
  • 9.240” deck height
  • Production-style oiling system
  • 6-bolt dowel-located steel main bearing caps
  • 4340 premium main cap fasteners
  • For use with any LS-or LSX-series head
  • Unique cylinder liner material for maximum durability
  • Siamesed cylinders to support larger bores
  • 4.117” finished bore
  • 4.160” maximum bore
  • Fully blueprinted and squared
  • Production camshaft location and cam bores
  • Includes premium head studs
  • Anodized aluminum O-ring core plugs.
  • No Active Fuel Management provisions

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Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance Parts may not meet Federal Motor Vehicle Safety Standards and emissions regulations and should not be operated on public roads. Chevrolet Performance customers are responsible for ensuring their use of Chevrolet Performance complies with applicable federal, state, and local laws, regulations, and ordinances. Many parts intended for racing or other “off-highway” use are not designed or tested for crashworthiness or to meet the safety needs of the motoring public, and may adversely affect the original intended performance or handling characteristics of the vehicle. These parts are designed and intended to be used with experts supervising their installation and use, to help assure the proper and safe operation of the vehicle.

  • The Manufacturer's Suggested Retail Price excludes tax, shipping and installation. Individual retailer pricing may vary. Please see your local dealer or retailer for details.

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