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LS/LT/LSX PRODUCTION CYLINDER BLOCKS

19420904

L8T GEN-V 6.6L CAST-IRON BLOCK

Chevrolet Performance LS/LT/LSX-Series Production Cylinder L8T Gen V 6.6L Cast Iron Cast Iron Engine Block Top Front View

Direct replacement for 2020 and later L8T 6.6L gas engines used in Silverado HD trucks
Production cast-iron casting finished with 4.065’’ (103.25 mm) cylinder bores
Used with a 3.86’’ stroke crankshaft in production engines to produce 400 cu in. (6.6L) displacement — the largest displacement in the LT engine family
9.240’’ deck height

Delivered bare with regular-production six-bolt main caps
Regular-production oiling circuit
Includes provisions for direct fuel injection

12609999

GEN IV 6.0L CAST-IRON BLOCK

Chevrolet Performance LS/LT/LSX-Series Production Cylinder Gen IV 6.0L Cast-Iron Engine Block Bottom Front View

Chevrolet Performance LS/LT/LSX-Series Production Cylinder Gen IV 6.0L Cast-Iron Engine Block Bottom Rear View

Chevrolet Performance LS/LT/LSX-Series Production Cylinder Gen IV 6.0L Cast-Iron Engine Block Top Front View

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, or 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

Chevrolet Performance LS/LT/LSX-Series Production Cylinder LS3/L92 Aluminum 6.2L Bare Engine Block Top Front View

Chevrolet Performance LS/LT/LSX-Series Production Cylinder LS3/L92 Aluminum 6.2L Bare Engine Block Bottom Front View

Chevrolet Performance LS/LT/LSX-Series Production Cylinder LS3/L92 Aluminum 6.2L Bare Engine Block Front Top View

Chevrolet Performance LS/LT/LSX-Series Production Cylinder LS3/L92 Aluminum 6.2L Bare Engine Block Front Bottom View

Chevrolet Performance LS/LT/LSX-Series Production Cylinder LS3/L92 Aluminum 6.2L Bare Engine Block Bottom Rear View

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, or L92/LS3-style cylinder heads
4.065” finished bore (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

Chevrolet Performance LS/LT/LSX-Series Production Cylinder LS9 6.2L Bare Engine Block Bottom Rear View

Chevrolet Performance LS/LT/LSX-Series Production Cylinder LS9 6.2L Bare Engine Block Top Rear View

Chevrolet Performance LS/LT/LSX-Series Production Cylinder LS9 6.2L Bare Engine Block Top Front View

Chevrolet Performance LS/LT/LSX-Series Production Cylinder LS9 6.2L Bare Engine Block Rear Top View

Chevrolet Performance LS/LT/LSX-Series Production Cylinder LSA-LS9 6.2L Bare Engine Block Piston Oilers View

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

Chevrolet Performance LS/LT/LSX-Series Production Cylinder LS7 7.0L Corvette Bare Engine Block Top Rear View

Chevrolet Performance LS/LT/LSX-Series Production Cylinder LS7 7.0L Corvette Bare Engine Block Bottom Rear View

Chevrolet Performance LS/LT/LSX-Series Production Cylinder LS7 7.0L Corvette Bare Engine Block Bottom Front View

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 bore (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

Chevrolet Performance LS/LT/LSX-Series Production Cylinder LT1/LT4 Aluminum 6.2L Bare Engine Block Top Front View

Chevrolet Performance LS/LT/LSX-Series Production Cylinder LT1/LT4 Aluminum 6.2L Bare Engine Block Bore Detail View

Chevrolet Performance LS/LT/LSX-Series Production Cylinder LT1/LT4 Aluminum 6.2L Bare Engine Block Bottom Rear View

Chevrolet Performance LS/LT/LSX-Series Production Cylinder LT1/LT4 Aluminum 6.2L Bare Engine Block Squirters Detail View

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

Chevrolet Performance LS/LT/LSX-Series Production Cylinder Aluminum C5R Racing Engine Block Rear View

Chevrolet Performance LS/LT/LSX-Series Production Cylinder Aluminum C5R Racing Engine Block Bottom Front View

Chevrolet Performance LS/LT/LSX-Series Production Cylinder Aluminum C5R Racing Engine Block Top Front View

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 horsepower desires, the race-proven C5R is it!