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6.0L Engine

6.0L Engine

6.0 L

The 6.0 L is a larger truck version of the LS1, with the exception that the blocks were cast of iron, and was designed to bridge the gap between the new small blocks and big blocks in truck applications. There were two version of this engine: the LQ4 and the LQ9, the latter being more performance oriented. Although the block of the 6.0L looks similar to the LS1, they are iron instead of aluminum.

6.0 L

The Vortec 6000 is a V8 truck engine. Displacement is 6.00 L (366 cu in) from 101.6 mm (4.00) bore and 92 mm (3.622") stroke. It is an iron/aluminum (1999 & 2000 model year engines had cast iron heads) design and produces 300 horsepower (220 kW) to 345 horsepower (257 kW) and 360 lbf·ft (490 N·m) to 380 lbf·ft (520 N·m).

LQ4

The Vortec 6000 LQ4, is a V8 truck engine. Displacement is 5.97 L (364 cu in) from a 4.0-inch (101.6 mm) bore and 3.622-inch (92.0 mm) stroke . It is an iron/aluminum (1999 & 2000 model year engines had cast iron heads) design and produces 300 hp (224 kW) to 325 hp and 360 lb·ft (488 N·m) to 370 lb·ft (502 N·m).

LQ4 (VIN U) Applications:

Chevrolet Express/GMC Savana

Chevrolet Silverado 2500 Pickup, 3500 Pickup, Crew Cab, and Chassis Cab/GMC Sierra 2500 HD Pickup and Crew Cab, C3, Denali, and 3500 Pickup and Chassis Cab, 1500HD Crew Cab

Chevrolet Suburban/GMC Yukon XL Denali

Hummer H2 SUT

GMC Yukon Denali

LQ9

The Vortec HO 6000 or VortecMAX is a special high-output version of the Vortec 6000 V8 truck engine originally designed for Cadillac. This engine was introduced in other truck lines as VortecMAX for 2006. It features high-compression (10:1) flat-top pistons for an extra 10 hp (7 kW) and 10 lb·ft (14 N·m), bringing output to 345 hp (257 kW) and 380 lb·ft (515 N·m). LQ9s are built only in Romulus, Michigan.

LQ9 (VIN N) Applications:

2002–2006 Cadillac Escalade

2002–2006 Cadillac Escalade EXT

2003–2006 Cadillac Escalade ESV

2003–2007 Chevrolet Silverado SS

2004–2005 Chevrolet Silverado and GMC Sierra Vortec HO Edition Only [Badging on truck](B4V)

2005-2006 GMC Sierra Denali pickup and Yukon Denali

2006–2007 Classic Chevrolet Silverado and GMC Sierra VortecMAX Option

  • Casting Number
12576181
Material
Iron
Displacement
6.0L / 364 c.i.d.
Bore Dia. 
4.000 in.
Stroke
3.622 in.
Deck Height
9.240 in.
Bore Spacing
4.400 in.
Thrust Bearing Location
#3 Main
Main Cap Style
6-Bolt
Main Housing Bore Dia.
2.751 in.
Cam Housing Bore Dia. 
Bore 1/5 = 2.346 in. Bore 2/4 = 2.326 in. Bore 3 = 2.307 in.
Cam-to-Crank Centerline
4.914 in.
LY6 Rotating Assembly
LY6 Rotating Assembly Specs
Piston Material
Hypereutectic Cast Aluminum Alloy
Piston Style
Dished with valve reliefs
Piston Volume
+6.7cc

Wrist Pin Dia.
0.9431 in. (Full Floating)
Connecting Rod Material
Powdered Metal
Connecting Rod Style
I-Beam
Connecting Rod Length
6.098 in.
Connecting Rod Housing Bore
2.225 in.
Connecting Rod Bolts
M9 x 1 x 43
Connecting
Rod Part Number
12607475
Connecting Rod Casting Number (Last 4 Digits)
3847
Crankshaft Material
Cast Iron
Crankshaft Casting Number
(Last 3 Digits)
216
Crankshaft Main Journal Dia.
2.559 in.
Crankshaft Rod Journal Dia.
2.100 in.
Reluctor Wheel
58X
LY6 Cylinder Heads
LY6 Cylinder Head Specs
Casting Numbers
5364, 823
Material
Aluminum
Combustion Chamber Volume
70cc
Intake Port Shape
Rectangle
Intake Runner Volume
257cc
Exhaust Port Shape
D-Port
Exhaust Runner Volume
87cc
Intake Valve Diameter
2.165 in.
Exhaust Valve Diameter
1.590 in.
Cylinder Head Bolt Style
Torque to Yield (TTY)
Cylinder Head Bolt Size 
(10) M11 x 2 x 100, (5) M8 x 1.25 x 45
LY6 Camshaft Specs
LY6 Camshaft Specs
Duration @ .050 in. (int./exh.)
196°/208°
Valve Lift (int./exh.)
0.467 in./.479 in.
Lobe Separation Angle
116°
Cam Gear Attachment
1-Bolt
Cam Gear Poles
4x
Active Fuel Management (AFM)
No
Variable Valve Timing (VVT)
Yes
LY6 Valvetrain
LY6 Valvetrain Specs
Lifter Style
Hydraulic Roller
Lifter Link Style
Plastic Lifter Tray
Lifter Body Diameter
0.842 in.
Pushrod Length
7.385 in.
Rocker Arm Mounting Style
Pedestal
Rocker Arm Style
Die-Cast, Roller Fulcrum
Rocker Ratio
1.7
Rocker Offset
Intake Rocker
Valve Spring Style
Beehive
Valve Spring Color
Natural
Valve Angle
15 Degrees
Intake Valve Material
Steel, Solid Stem
Intake Valve Dia.
2.165 in.
Exhaust Valve Material
Steel, Solid Stem
Exhaust Valve Dia.
1.590 in.
Other Key LY6 Specs
LY6 Throttle Body, Fuel Injector Specs & More
Intake Manifold
Truck-Style
Throttle Body
87mm, 4-bolt
Throttle Control 
Electronic, Drive-by-Wire 
Fuel Injector Part Number 
12580681
Fuel Injector Flow
29.6 lb./hr. @ 58 psi
Flex Fuel Capable
No
Fuel Injector Length Between O-Rings 
1.900 in.
Fuel Injector Connector 
EV6 / USCAR
PCM
E38
Crankshaft Reluctor Ring
58x
Camshaft Sensor Location
Front mount, 4x on cam
Oil Pan
Deep Rear Sump
Oil Pump
Standard Flow
(0.96 c.i. per rev.)

    6.0 LS Engine | Bravo

    Chevrolet Performance

    $3,999.99
      The LY6 engine is a 6.0L Gen. 4 small block engine used in GM trucks and SUVs between 2007 and 2010. For marketing purposes, it was also known as the Vortec 6000. The engine specs and information listed here is for a stock LY6 engine...
    $3,999.99
  • Drop this 400+HP beauty into your car, truck or SUV and start enjoying life again! Whether you are looking to replace your classic car, truck or SUV's tired SBC/BBC or late model SUV/truck motor - this one is for you! Put a new lease on life for your prized possession. This includes stock intake manifold, fuel rails/injectors, new accessory drive kit from Holley & GM Performance, brand new AC/Delco Water Pump, 145 Amp Alternator, Air Conditioning Compressor, Power Steering Pump. Tensioners, and Pulleys! Even has a brand new Valley Pan Gasket kit, and spark plugs!

    Gen IV 6.0 LS | Level II

    LSxEverything

    $4,999.99
    Drop this 400+HP beauty into your car, truck or SUV and start enjoying life again! Whether you are looking to replace your classic car, truck or SUV's tired SBC/BBC or late model SUV/truck motor - this one is for you! Put a new lease on life for your...
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  • Crate Engine, Chevy LQ4 6.0L, Long Block, Internal Engine Balance, Aluminum Heads, Each Crate Engine, Chevy LQ4 6.0L, Long Block, Internal Engine Balance, Aluminum Heads, Each

    LQ4 6.0L 460 HP Long Block Crate Engine

    ATK

    MSRP: $6,499.99
    $4,999.99
    ATK High Performance Chevy LQ4 6.0L 460 hp long block crate engines lay down impressive power that can be run with factory fuel injection or retrofitted with a carburetor. They're hand-built, balanced, and blueprinted using top-quality parts. Don't waste...
    MSRP: $6,499.99
    $4,999.99
  • Drop this 400+HP beauty into your car, truck or SUV and start enjoying life again! Whether you are looking to replace your classic car, truck or SUV's tired SBC/BBC or late model SUV/truck motor - this one is for you! Put a new lease on life for your prized possession. This includes stock intake manifold, fuel rails/injectors, new accessory drive kit from Holley & GM Performance, brand new AC/Delco Water Pump, 145 Amp Alternator, Air Conditioning Compressor, Power Steering Pump. Tensioners, and Pulleys! Even has a brand new Valley Pan Gasket kit, and spark plugs! Drop this 400+HP beauty into your car, truck or SUV and start enjoying life again! Whether you are looking to replace your classic car, truck or SUV's tired SBC/BBC or late model SUV/truck motor - this one is for you! Put a new lease on life for your prized possession. This includes stock intake manifold, fuel rails/injectors, new accessory drive kit from Holley & GM Performance, brand new AC/Delco Water Pump, 145 Amp Alternator, Air Conditioning Compressor, Power Steering Pump. Tensioners, and Pulleys! Even has a brand new Valley Pan Gasket kit, and spark plugs!

    Gen IV 6.0 LS | Level III

    LSxEverything

    $5,999.99
    Drop this 400+HP beauty into your car, truck or SUV and start enjoying life again! Whether you are looking to replace your classic car, truck or SUV's tired SBC/BBC or late model SUV/truck motor - this one is for you! Put a new lease on life for your...
    $5,999.99
  • The LS engine design has incredible potential, but once you start bolting on big superchargers, an aluminum block just can't contain all of that power. These iron LS blocks have all of the same potential, but their cast iron construction is capable of withstanding high-horsepower applications. This is a brand new 4.8L/5.3L block that has been bored to the stock 5.7L bore diameter of 3.898 in. and painted black. It includes side main bolts, expansion plugs, threaded plugs, oil restrictor, and dowel pins. Further over boring is not recommended without sonic testing.

Main Journal Type:LS mains
Engine Block Style:Stock/OEM standard deck
Deck Height (in):9.240 in.
Cylinder Bore as Shipped:3.898 in.
Engine Block Material:Cast iron
Main Bolt Style:6-bolt
Main Caps Included:Yes
Main Cap Material:Cast iron
Main Cap Fasteners Included:Yes
Main Bearings Included:No
Rear Main Seal Style:1-piece
Finished Cylinder Bores:Yes
Raised Cam Location:No
Cam Bearings Included:Yes
Freeze Plugs Included:Yes The LS engine design has incredible potential, but once you start bolting on big superchargers, an aluminum block just can't contain all of that power. These iron LS blocks have all of the same potential, but their cast iron construction is capable of withstanding high-horsepower applications. This is a brand new 4.8L/5.3L block that has been bored to the stock 5.7L bore diameter of 3.898 in. and painted black. It includes side main bolts, expansion plugs, threaded plugs, oil restrictor, and dowel pins. Further over boring is not recommended without sonic testing.

Main Journal Type:LS mains
Engine Block Style:Stock/OEM standard deck
Deck Height (in):9.240 in.
Cylinder Bore as Shipped:3.898 in.
Engine Block Material:Cast iron
Main Bolt Style:6-bolt
Main Caps Included:Yes
Main Cap Material:Cast iron
Main Cap Fasteners Included:Yes
Main Bearings Included:No
Rear Main Seal Style:1-piece
Finished Cylinder Bores:Yes
Raised Cam Location:No
Cam Bearings Included:Yes
Freeze Plugs Included:Yes

    Iron LS Engine Block

    Chevrolet Performance

    $1,999.99
    The LS engine design has incredible potential, but once you start bolting on big superchargers, an aluminum block just can't contain all of that power. These iron LS blocks have all of the same potential, but their cast iron construction is capable of...
    $1,999.99
  • 6.0 LS Rotating Assembly |1-44402

    6.0 LS Rotating Assembly |1-44402

    SCAT

    MSRP: $2,999.99
    $2,699.99
    When making big power is in your future, look no further than a proper build kit like this one from SMM! This Scat Modern Muscle engine rotating assembly is equipped with high-quality Scat forged 4340 crankshafts and I-beam connecting rods with 7/16 in...
    MSRP: $2,999.99
    $2,699.99