6.0 Vortec Crate Engine for Sale | OEM Used Chevy 6.0L V8 LQ4, LQ9, L96, L77 Variants
$6,500.00
At a Glance
- Displacement: 6.0L V8 (GM LS Gen-III and Gen-IV architecture)
- Horsepower: 300 to 366 hp depending on variant
- Condition: OEM used, compression tested and inspected
- Availability: LQ4, LQ9, L96, L77, and LY6 variants in stock
- Shipping: Free crated freight to all 50 states, 5 to 10 business days
- All 8 cylinders compression tested with results shared before payment
- Variant confirmed before shipping (LQ4 vs LQ9 vs L96 vs L77 vs LY6)
- 4-bolt vs 6-bolt main cap configuration verified (critical for boost builds)
- Cam, lifter, and valve train inspection
- Donor application documented (Silverado, Sierra, Suburban, Tahoe, Yukon, Van)
- 100% fitment verified before every order ships
- Zero core charge required, your existing engine stays with you
- Backed by a 15 day replacement warranty against internal defects
Description
Engine Background
The Chevy 6.0L Vortec is one of the most successful and widely-deployed truck engines in modern American automotive history. Built on the GM Gen-III and Gen-IV LS small-block V8 architecture (sharing fundamental design with the LS1, LS6, LS3 sport engines), the 6.0L Vortec has powered millions of GM trucks, SUVs, and vans since 1999. Available in multiple variants ranging from the workhorse LQ4 to the high-output LQ9 to the modern L77 with active fuel management, the 6.0 Vortec delivers a proven combination of torque, durability, towing capacity, and excellent aftermarket support. The 6.0 Vortec is also one of the most popular engine swap candidates in the entire enthusiast community, fitting easily into classic Chevy and GMC trucks, hot rods, kit cars, and even modified Mazda Miatas and Datsun 510s.
The 6.0 Vortec Variant Family
| Detail | Description |
|---|---|
| LQ4 (1999 to 2007) | The original 6.0L truck engine. 300 to 325 hp depending on year. Iron block, aluminum heads. The most common 6.0 you can buy used. Heavily favored for boost builds due to 4-bolt mains. |
| LQ9 (2002 to 2007) | High-output 6.0L truck engine. 345 hp at 5,200 rpm. Higher compression (10.0:1), better cam, used in Cadillac Escalade and select trucks. Highly sought after. |
| L96 (2010 to 2017) | Modern 6.0L truck/van engine. 360 hp at 5,400 rpm. Improved cylinder heads, variable valve timing on later years. Standard in heavy-duty trucks and 3500-series vans. |
| L77 (2010 to 2017) | Aluminum block 6.0L. 360 hp. Active Fuel Management (cylinder deactivation). Lighter weight option, used in Caprice PPV and select Holden Commodore SS. |
| LY6 (2007 to 2009) | Best-of-class 6.0L. 366 hp at 5,400 rpm. Improved heads and Variable Valve Timing. Used in heavy-duty trucks. |
Why 6.0 Vortec Is the Most Popular GM Truck Engine Swap
The 6.0L Vortec is the swap engine of choice for millions of builders because:
- LS architecture: Same fundamental design as the LS1/LS3 sport engines, with massive aftermarket support
- Boost potential: The iron-block LQ4 in particular handles 600 to 800-plus wheel horsepower on stock internals with proper tuning
- Naturally aspirated potential: With cam, intake, headers, and tune, a 6.0 makes 450 to 500-plus wheel horsepower naturally aspirated
- Affordable: Used 6.0 Vortec long blocks are some of the most cost-effective ways to get LS V8 power
- Wide vehicle availability: Sourced from millions of donor trucks, SUVs, and vans
- Easy harness conversion: Standalone harness kits available from Holley, Speartech, and others
- Modern fuel injection: Sequential PFI with knock sensors and full engine management
When Replacement Becomes Necessary
- Knock or rattle on cold start (rod or main bearing wear)
- Loss of compression on one or more cylinders
- Excessive oil consumption (a known LS family issue)
- Lifter tick or failure (known issue on all LS engines)
- Active Fuel Management (AFM) lifter failure (L77, L96 with AFM specifically)
- Coolant in oil or oil in coolant (head gasket failure, often post-overheat)
- Oil pump failure causing low oil pressure
- Building a swap project (classic Chevy/GMC trucks, hot rods, restomods)
- Replacement of seized engine in donor truck
Known Issues We Document Before Shipping
- Compression on all 8 cylinders, the leading indicator of overall condition
- Lifter condition (especially Active Fuel Management lifters on L77/L96)
- Cam lobe condition checked
- Main bearing wear assessed where possible
- Variant photographed and confirmed (LQ4 vs LQ9 vs L96 vs L77 vs LY6 has different intake, valve cover, and head castings)
- 4-bolt vs 6-bolt main caps verified (critical for boost build planning)
- Donor application documented when available
What Ships and What Does Not
| Item | Details |
|---|---|
| INCLUDED | Long block: block, crankshaft, rods, pistons, camshaft, lifters, heads, valve train, oil pan, valve covers, intake manifold (sometimes), harmonic balancer. |
| NOT INCLUDED | Throttle body, ECU, harness (sold separately), alternator, starter, A/C compressor, power steering pump, flywheel/flexplate, motor mounts. Some accessory drive components vary by donor. |
| Fluids | Drained before shipping. Refill with 5W-30 motor oil meeting GM dexos1 spec. |
| Core Note | No core charge. You are not required to return your old engine. |
Direct-Fit Vehicle Applications
The 6.0L Vortec was a direct fit in the following vehicles:
| Vehicle | Compatibility |
|---|---|
| Chevrolet Silverado 1500 / 2500 / 3500 | 1999 to present (different variants by year) |
| GMC Sierra 1500 / 2500 / 3500 | 1999 to present |
| Chevrolet Suburban 1500 / 2500 | 1999 to 2014 (LQ4, LQ9, L96 variants) |
| Chevrolet Tahoe | 1999 to 2014 |
| GMC Yukon / Yukon XL / Yukon Denali | 1999 to 2014 (LQ4, LQ9 in Denali, L96 in HD) |
| Cadillac Escalade / EXT / ESV | 2002 to 2014 (LQ9 in early Escalade, L96 in HD variants) |
| Chevrolet Express Van | 2003 to present (L96, LY6) |
| GMC Savana Van | 2003 to present |
| Hummer H2 | 2003 to 2009 (LQ4 6.0L) |
Common 6.0 Vortec swap applications: 1947 to 1972 Chevrolet C/K trucks, 1973 to 1987 Chevy/GMC squarebody trucks, 1988 to 2000 OBS Chevy trucks, classic muscle cars (Camaro, Chevelle, Nova), kit cars, Mazda Miata LS swap, Datsun 510 LS swap. Aftermarket swap support is excellent (Holley, Hooker, ICT Billet, Speartech, BTR all make swap-specific parts).
Inspection Workflow
Every used 6.0 Vortec we ship goes through this process:
- Compression test across all 8 cylinders, pressure per cylinder recorded
- Lifter condition inspected (especially for Active Fuel Management failures on L77/L96)
- Cam lobe wear inspected
- Visual inspection of block deck, head surfaces, oil galleries, cam tunnels
- Variant photographed: head casting, intake style, valve cover (LQ4 vs LQ9 vs L96 vs L77 vs LY6 each look different)
- 4-bolt vs 6-bolt main cap configuration verified (critical for boost build buyers)
- Donor application and approximate mileage documented where available
Where donor mileage is verified, it is shared. Where mileage cannot be confirmed, we disclose this openly before payment.
Why Buy From Part Nests
- All 8 cylinders compression-tested with results shared before payment
- Variant photographed and confirmed (LQ4, LQ9, L96, L77, or LY6)
- 4-bolt vs 6-bolt main cap verified for boost build planning
- Cam and lifter condition inspected
- AFM lifter status documented for L77/L96 variants
- Free crated freight to all 50 states, no hidden fees
- No core charge required
- 15 day replacement warranty on internal defects
- Donor application documented (Silverado, Sierra, Suburban, Tahoe, Yukon, Express, Savana, Hummer H2, Escalade)
- Call (855) 634-4447 to speak with someone who knows LQ4 vs LQ9 vs L96 identification, AFM delete planning, and LS swap support for classic truck and muscle car builds
Additional information
| engine-model | Chevy 6.0L Vortec V8 |
|---|---|
| engine-family | GM Gen-IV Small-Block V8 (LS family) |
| configuration | 16 valves, OHV, Pushrod, V8 |
| displacement | 6.0 liters (364 cubic inches) |
| bore-x-stroke | 4.000 in x 3.622 in (101.6 mm x 92 mm) |
| camshaft-type | Hydraulic roller (Part 12626660) |
| camshaft-duration | 193° intake / 200° exhaust at 0.50 in lift |
| valve-size | 2.000 in intake / 1.550 in exhaust |
| crankshaft-material | Nodular iron (Part 12588613) |
| connecting-rods-material | Powdered metal (Part 12649190) |
| cylinder-block-material | aluminum (L77, Cast iron (most variants), LY6) |
| cylinder-head-material | Aluminum (Part 12629062) |
| fuel-system | Sequential PFI |
| fuel-type | 87 Octane Regular |
| power | 300 to 366 hp depending on variant |
| torque | 360 to 380 lb-ft depending on variant |
| application | Cadillac Escalade, Chevy Silverado, Express, GMC Sierra, Savana, Suburban, Tahoe, Yukon |
| variants | L77, L96, LQ4, LQ9, LY6 |
| compatibility | popular swap engine, Vortec 6.0 Crate Engine for GM trucks and SUVs |
Output and compression. The LQ4 (1999 to 2007) is the workhorse 6.0L producing 300 to 325 hp with 9.4:1 compression and a milder cam. The LQ9 (2002 to 2007) is the high-output variant producing 345 hp at 5,200 rpm with 10.0:1 compression and a more aggressive cam, found in Cadillac Escalade and select trucks. Both share the iron block with 4-bolt mains, making both popular for boost builds. The LQ9 is more sought after due to its higher output and less common availability.
Five main variants: LQ4 (1999 to 2007, iron block, 300 to 325 hp), LQ9 (2002 to 2007, iron block, 345 hp high-output), L96 (2010 to 2017, iron block, 360 hp with VVT on later years), L77 (2010 to 2017, aluminum block, 360 hp with AFM), and LY6 (2007 to 2009, iron block, 366 hp with VVT). The variants share fundamental architecture but differ in heads, cam, intake, valve covers, and electronic controls.
Main cap fastener configuration. The 6.0L Vortec iron blocks use 6-bolt main caps (4 vertical bolts plus 2 side bolts per cap), which is significantly stronger than 4-bolt mains. This makes the iron-block 6.0 Vortec variants (LQ4, LQ9, L96 iron, LY6) exceptionally strong foundations for forced induction builds, handling 600 to 800-plus wheel horsepower on stock internals. The aluminum L77 uses 6-bolt mains as well. We verify main cap configuration on every unit since buyers planning boost builds specifically need this information.
Yes, exceptionally well, particularly the iron-block variants. The LQ4 in particular is well-documented in the boost community, with examples making 1,000-plus wheel horsepower on stock internals (with appropriate fueling, tuning, and supporting hardware). Common boost targets: 500 to 700 wheel horsepower for street builds, 800 to 1,000-plus for race-only builds. The L77 aluminum block holds boost well but is generally considered slightly weaker than the iron-block variants at high boost levels.
Active Fuel Management (cylinder deactivation). The L77 and L96 (later years) have AFM, which deactivates four of the eight cylinders under light load to save fuel. The AFM lifters can collapse on high-mileage units, causing cam lobe wear and persistent misfire. Most performance and swap builders delete AFM (mechanical delete with non-AFM lifters and replacement valley cover) or disable it electronically (resistor or tune-based). For swap and performance builds, AFM delete is strongly recommended preventive maintenance.
Yes with supporting work. LS swaps into classic Chevy/GMC trucks (1947 to 2000) are among the most documented swaps in the enthusiast community. Required: engine mount kit (Hooker, Holley, ICT Billet, Speartech), oil pan (front-sump or rear-sump depending on chassis), accessory drive, exhaust manifolds, harness (Holley Terminator X, Speartech standalone, FAST EZ-EFI 2.0 are popular), and transmission adapter if not using a stock LS-paired transmission. Total swap cost ranges from $5,000 DIY foundation to $20,000+ turnkey at a shop.
GM 4L60E or 4L65E (light-duty applications), 4L80E or 4L85E (heavy-duty, the popular performance choice), 6L80E or 6L90E (modern Gen-IV applications), or T-56 / TR-6060 manual transmissions (with LS-pattern bell-housing). For swap builds, the 4L80E is the most common choice due to its strength and wide aftermarket support. We confirm bell-housing pattern compatibility on every engine.
No. There is no core return required.
15 Day Replacement Warranty
Every used 6.0 Vortec engine purchased through Part Nests carries a 15 day replacement warranty starting on the delivery date.
What Is Covered
- Internal defects already present when the engine arrives
- Performance materially different from how the engine was described
- Incorrect variant shipped (LQ4 vs LQ9 vs L96 vs L77 vs LY6) due to an error on our end
What Is Not Covered
- Damage caused during installation
- Damage from AFM lifter collapse on L77 or L96 if AFM was not disabled or deleted at install
- Damage from boost-related operation if 4-bolt main confirmation was misinterpreted by the buyer
- External components unless specifically itemized
- Labor expenses of any kind
To start a warranty claim, reach us within 15 days of delivery at (855) 634-4447.
- Variant Confirmed: LQ4, LQ9, L96, L77, or LY6 photographed before payment
- Main Cap Configuration Verified: 4-bolt vs 6-bolt documented for boost build planning
- Lifter Condition Documented: AFM lifter status disclosed for L77 and L96
- Cam Lobe Inspected: Visual condition assessed before payment
- All 8 Cylinders Tested: Compression results shared before payment
- 15 Day Replacement Cover: Internal defects protected from delivery onward







Travis P. –
Got an LQ4 for an LS swap into a 1972 C10 truck. Variant confirmed as LQ4 (the popular iron-block swap foundation), 4-bolt main configuration verified (planning a turbo build). Cam lobe inspection documented. AFM not applicable on the LQ4. Foundation for the project is exactly what the build needed.
Ron K. –
Sourced an L96 for a 2014 Silverado 2500 replacement. Variant confirmed as L96 (matching the 2500HD chassis), AFM lifter condition disclosed clean on inspection. All 8 cylinders tested uniform on compression. Donor application documented. Foundation for the truck is solid.