1-Year No-Fault Warranty
$99.00
- One-time free replacement, no matter the cause of failure.
- Unlimited miles during the 1-year term.
- Labor covered at $50.00/hr (Mitchell or AllData book time).
FRASER ENGINES - GM 5.3L REMANUFACTURED ENGINE (GEN II)
FITS GMC, CHEVY Vortec 5.3L (Gen. 2) VEHICLES (2007- 2009) GM Engine Codes: LY5, LMG, LH6 & LC9
PLEASE SELECT AN OPTION
Engine Package: 1
Remanufactured 5.3L GM GEN II Engine Assembly | Zero Miles | Built Back to OEM Specifications
SKU NUMBER: FEGM53G2S
Best Seller
Popular Pick
YES! This item is: IN STOCK
🚚 Normally Delivers in 2-3 Business Days
Included In The Package
Engine Block
Timing Components
Pistons
Lifters
Connecting Rods
Cylinder Heads
Gasket Set
Oil Pump
Included Warranty Coverage
3 Years | Unlimited Miles Parts & Labor
Optional Hardware Add-ons
🔧 Premium Installation Kit – $250.00
No-Fault Warranty Options
2-Year No-Fault Warranty
$199.00
- One-time free replacement within 2 years.
- Unlimited miles during the term.
- Labor covered at $50/hr (Mitchell or AllData book time).
3-Year No-Fault Warranty
$299.00
- One-time free replacement within 3 years.
- Unlimited miles during the term.
- Labor covered at $50/hr (Mitchell or AllData book time).
4-Year No-Fault Warranty
$399.00
- One-time free replacement within 4 years.
- Unlimited miles during the term.
- Labor covered at $99/hr (Mitchell or AllData book time).
5-Year No-Fault Elite
$499.00
- Covers the full 5 years • one-time free replacement.
- Unlimited miles during the term.
- Labor covered at $99/hr (Mitchell or AllData book time).
Labor reimbursement uses published Mitchell or AllData times. One-time replacement applies per covered unit during the elected term.
About this Product
The Standard Option engine from Fraser Engines is built to original OEM specifications, similar to what you’d find from most online retailers (e.g., Powertrain, AutoZone, Advance Auto Parts, etc.). This option is ideal for those needing a quick solution or simply looking for a reliable engine to get their vehicle back on the road. If you’re seeking an upgraded version of this engine, we highly recommend exploring the Fraser Advantage build.
SALE PRICE: $3099.00
Core Deposit (waivable): $500.00
Round Trip Shipping: FREE (with promo code) Normally $389.00
TOTAL: $3099.00
Not ready to buy just yet? No problem — click the button below to lock in the current sale price for the next 30 days. Even if the price goes up, your locked-in rate stays the same. It’s a simple way to secure today’s savings while you take time to decide.
5.3L Vortec Engine Vehicle Fitments (2007–2009)
| Year(s) | Make | Model | Engine Code (VIN) | Notes |
|---|---|---|---|---|
| 2007–2009 | Chevrolet | Silverado 1500 | LMG / LY5 / LC9 | FlexFuel & non-FlexFuel options |
| 2007–2009 | GMC | Sierra 1500 | LMG / LY5 / LC9 | FlexFuel & non-FlexFuel options |
| 2007–2009 | Chevrolet | Tahoe | LMG / LC9 | FlexFuel models available |
| 2007–2009 | GMC | Yukon | LMG / LC9 | FlexFuel models available |
| 2007–2009 | Chevrolet | Suburban 1500 | LMG / LC9 | FlexFuel models available |
| 2007–2009 | GMC | Yukon XL 1500 | LMG / LC9 | FlexFuel models available |
| 2007–2009 | Chevrolet | Avalanche 1500 | LMG / LC9 | FlexFuel models available |
| 2008–2009 | Chevrolet | Express 1500/2500 | LY5 / LMF | Vans, FlexFuel options |
| 2008–2009 | GMC | Savana 1500/2500 | LY5 / LMF | Vans, FlexFuel options |
| 2008–2009 | Chevrolet | TrailBlazer | LH6 | 5.3L Gen IV option |
| 2008–2009 | GMC | Envoy | LH6 | 5.3L Gen IV option |
| 2008–2009 | Saab | 9-7X | LH6 | Shared GMT360 platform |
| 2008–2009 | Buick | Rainier | LH6 | Discontinued after 2007 in some trims |
Engine Package: 2
FRASER Advantage™ Premium Remanufactured 5.3L GM GEN II Engine | Zero Miles | Better than New Build | All TSB Updates Applied
SKU NUMBER: FEGM53G2R-HD
Best Seller
Popular Pick
YES! This item is: IN STOCK
🚚 Normally Delivers in 2-3 Business Days
Included In The Package
Engine Block
Updated Timing Components
Updated Pistons
Updated Lifters
Connecting Rods
Remanufactured & Updated Cylinder Heads
Premium Gasket Set
Updated Oil Pump
Oil Pan
Timing Cover
Valley Cover
Included Warranty Coverage
5 Years | Unlimited Miles Parts & Labor
1 Year NO FAULT Included FREE! – $99.00 Value
Optional Hardware Add-ons
🔧 Premium Installation Kit – $250.00
No-Fault Warranty Options
1-Year No-Fault Warranty
$99.00
Included at no charge with any Fraser Advantage™ engine purchase.
- One-time free replacement, no matter the cause of failure.
- Unlimited miles during the 1-year term.
- Labor covered at $50.00/hr (Mitchell or AllData book time).
2-Year No-Fault Warranty
$199.00
- One-time free replacement within 2 years.
- Unlimited miles during the term.
- Labor covered at $50/hr (Mitchell or AllData book time).
3-Year No-Fault Warranty
$299.00
- One-time free replacement within 3 years.
- Unlimited miles during the term.
- Labor covered at $50/hr (Mitchell or AllData book time).
4-Year No-Fault Warranty
$399.00
- One-time free replacement within 4 years.
- Unlimited miles during the term.
- Labor covered at $99/hr (Mitchell or AllData book time).
5-Year No-Fault Elite
$499.00
- Covers the full 5 years • one-time free replacement.
- Unlimited miles during the term.
- Labor covered at $99/hr (Mitchell or AllData book time).
Labor reimbursement uses published Mitchell or AllData times with ASE-certified shop documentation. One-time replacement applies per covered unit during the elected term.
About this Product
The Fraser Advantage™ engine is our highest-spec remanufactured option. Each unit is remanufactured to Fraser Advantage standards by approved facilities, with all applicable OEM Technical Service Bulletin (TSB) updates applied to address known factory concerns. Using premium components and precise machining, every engine is validated through comprehensive pre-shipment testing. Fraser Advantage is engineered for customers who prioritize long-term reliability and low ownership risk—delivering confident, best-in-class performance while proactively mitigating common issues found in original configurations.
SALE PRICE: $3350.00
Core Deposit (waivable): $500.00
Round Trip Shipping: FREE (with promo code) Normally $389.00
TOTAL: $3350.00
Not ready to buy just yet? No problem — click the button below to lock in the current sale price for the next 30 days. Even if the price goes up, your locked-in rate stays the same. It’s a simple way to secure today’s savings while you take time to decide.
5.3L Vortec Engine Vehicle Fitments (2007–2009)
| Year(s) | Make | Model | Engine Code (VIN) | Notes |
|---|---|---|---|---|
| 2007–2009 | Chevrolet | Silverado 1500 | LMG / LY5 / LC9 | FlexFuel & non-FlexFuel options |
| 2007–2009 | GMC | Sierra 1500 | LMG / LY5 / LC9 | FlexFuel & non-FlexFuel options |
| 2007–2009 | Chevrolet | Tahoe | LMG / LC9 | FlexFuel models available |
| 2007–2009 | GMC | Yukon | LMG / LC9 | FlexFuel models available |
| 2007–2009 | Chevrolet | Suburban 1500 | LMG / LC9 | FlexFuel models available |
| 2007–2009 | GMC | Yukon XL 1500 | LMG / LC9 | FlexFuel models available |
| 2007–2009 | Chevrolet | Avalanche 1500 | LMG / LC9 | FlexFuel models available |
| 2008–2009 | Chevrolet | Express 1500/2500 | LY5 / LMF | Vans, FlexFuel options |
| 2008–2009 | GMC | Savana 1500/2500 | LY5 / LMF | Vans, FlexFuel options |
| 2008–2009 | Chevrolet | TrailBlazer | LH6 | 5.3L Gen IV option |
| 2008–2009 | GMC | Envoy | LH6 | 5.3L Gen IV option |
| 2008–2009 | Saab | 9-7X | LH6 | Shared GMT360 platform |
| 2008–2009 | Buick | Rainier | LH6 | Discontinued after 2007 in some trims |
Why Choose Fraser Advantage
Fraser Advantage Build Process
Description
Tech Updates
Specifications
Break-In Procedures
Vehicle Fitments
Why Choose Fraser Advantage
If you’re considering a replacement engine, let us tell you why a Fraser Advantage 5.3L engine is the best choice for your vehicle. At Fraser Engines, we focus on delivering engines that meet or even exceed original manufacturer standards, giving you the reliability, performance, and value you deserve.
Remanufactured to OEM Standards
Fraser Advantage engines are remanufactured, not just rebuilt. This means each engine goes through a thorough remanufacturing process that ensures it meets original equipment manufacturer (OEM) standards. We take extra care to inspect, clean, and replace components as needed, ensuring that your engine performs like new. We also upgrade any parts prone to wear or flaws, making sure your engine is more durable and reliable.
Comprehensive Quality Control
Every Fraser Advantage 5.3L engine undergoes extensive testing, from compression and leak testing to balancing the components to ensure smooth operation. We only work with certified technicians who pay close attention to every detail, giving you an engine that delivers optimal performance and peace of mind.
Industry-Leading Warranty
We stand behind our engines with an industry-leading warranty that covers parts and labor, so you can rest easy knowing that your investment is protected. Our warranties often extend up to 5 years or unlimited mileage, showing just how confident we are in the quality of our engines. Plus, if you ever need help, our supportive customer service team is here to assist you every step of the way.
Competitive Pricing
A Fraser Advantage 5.3L engine is a cost-effective solution compared to buying a brand-new vehicle or engine. By choosing Fraser, you get a high-quality engine at a fraction of the cost. And if budget is a concern, we also offer flexible financing options to make the process easier for you.
Upgraded Performance and Reliability
Our remanufactured 5.3L engines often feature performance upgrades and improved components, enhancing both reliability and power. This means fewer headaches for you, whether you’re towing, hauling, or simply commuting. You can trust the dependable power of a Fraser engine to keep you moving forward.
Easy Fitment and Convenience
The Fraser Advantage 5.3L engine is designed for seamless fitment with compatible Chevrolet, GMC, Cadillac, and Hummer models. We make sure that your replacement engine is ready to go, saving you time and effort during installation. Plus, with nationwide shipping, it’s easy to get your new engine delivered directly to your door.
Eco-Friendly Choice
Choosing a remanufactured Fraser engine is also an environmentally responsible decision. By remanufacturing, we reduce the need for new materials, helping to lower the overall carbon footprint and make a positive impact on the environment.
Proven Expertise
With decades of experience, Fraser Engines has built a solid reputation for delivering reliable, high-quality engines. We take pride in our work and have a long history of satisfied customers who appreciate the quality, support, and performance they get from Fraser. We’re here to make sure you get not only a great engine but also the after-sale support you need.
Make the Smart Choice
Choosing a Fraser Advantage 5.3L engine means you’re getting more than just a replacement—you’re getting a dependable upgrade backed by a leading warranty and the confidence of our support. Ready to bring your vehicle back to life? Trust in Fraser, and drive with peace of mind.
Fraser Advantage Build Process
STEP 1) ENGINE BLOCK DISASSEMBLY
Our journey begins with a thorough visual inspection of each engine block for casting defects. We meticulously disassemble the components, inspecting each part for damage and identifying the cause of failure. We remove oil and water passage plugs to guarantee optimal results during thermal cleaning. We select only premium castings for our marine blocks, insisting on replacements in all salt-water applications. For high-performance engines, we utilize premium cores, never employing repaired castings or sleeved blocks, preserving the authenticity of your classic car’s original block casting with our skilled technicians’ craftsmanship.
STEP 2) ENGINE BLOCK THERMAL CLEANING
We elevate engine parts to a new level of clean with our thermal cleaning system. This process evenly distributes heat throughout the chamber, avoiding overheating or warping. Components are heated in an oxygen-deficient atmosphere, decomposing combustible hydrocarbons and leaving parts dry. We use the Ace RKE 230 oven exclusively for cast iron blocks, ensuring ash residue is effortlessly removed in the subsequent stainless steel shot blasting phase.
STEP 3) ENGINE BLOCK SHOT BLASTING
Our shot-blasting method employs stainless steel shot to remove surface contamination like rust, creating a smoother finish. This step is vital for detecting surface and subsurface defects during quality inspection. The peening process imparts compression strength to the metal, preparing it for a preliminary defect inspection.
STEP 4) ENGINE BLOCK MAGNAFLUXING
We use magnetic particle inspection to detect cracks and imperfections in ferrous engine parts, ensuring the highest quality for our cast iron blocks. Before proceeding to aluminum blocks, we explain their specific cleaning, testing, and defect checking processes.
STEP 5) ENGINE BLOCK HIGH PRESSURE WASH
Aluminum engine blocks first encounter our AXE SW20 OS spray cleaning system, which removes all foreign material with its powerful spraying action and multi-integrated nozzles. This step is crucial for a thorough inspection.
STEP 6) ENGINE BLOCK SONIC CLEANING
We use ultrasonic cleaning for aluminum blocks, known as the benchmark in cleanliness. This method reaches inaccessible areas, breaking the bonds that hold small particles to surfaces. Post-cleaning, the block undergoes pressure testing.
STEP 7) ENGINE BLOCK PRESSURE TESTING
We employ the Delta Pressure tester to double-check for pinholes after magnafluxing and dye testing, ensuring the integrity of all castings used in our products.
STEP 8) ENGINE BLOCK PREPARATION
After a complete visual inspection, we repair minor casting defects, remove broken bolts, tap threads, and perform gasket surface repairs to minimize stock removal.
STEP 9) ENGINE BLOCK MACHINING
We use the RMC CNC V40 enclosed machining center for precise and versatile machining. This computerized machine measures and levels blocks, measures deck heights & cylinder bore sizes, eliminating operator error. Our machine determines Ra finish based on block type and gasket used, utilizing CBN cutters and checking surface finish with the Mitutoyo SJ-301.
STEP 10) ENGINE BLOCK ROD RECONDITIONING
The Sunnen LBB-1600 Hone, measuring accuracy within .0001″, is our choice for precision rod reconditioning and pin fitting, ensuring honed bores equal to or better than new rods. High-performance engines are fitted with ARP high-strength bolts and nuts prior to this step.
STEP 11) ENGINE BLOCK HONING
We are the first to use Rottler’s newest cylinder honing machine, ensuring the most accurate honing with cylinders finishing within .0001″ roundness and straightness. This machine continuously analyzes and corrects the bore, maintaining evolving engine designs’ critical oil clearances and machining tolerances.
STEP 12) ENGINE BLOCK HIGH PRESSURE WASH
After precise machining, our blocks undergo a second high-pressure wash cycle, ensuring absolute cleanliness for final assembly.
STEP 13) ENGINE BLOCK SONIC CLEANING
We ultrasonically clean all parts prior to assembly, ensuring the ultimate cleanliness level. This method reaches every surface and internal area, providing the cleaning force required for the most stringent standards.
STEP 14) ENGINE BLOCK ASSEMBLY
Each assembler at Fraser Engines conducts a thorough visual inspection and measures parts for proper size. We fit blocks with new cam bearings, oil restrictors, relief valves, new water and oil plugs, and more. Cylinder heads are installed with new bolts and gaskets, and each cylinder’s seal integrity is checked. The final inspection by our assembly manager ensures the highest quality for your remanufactured engine.
Fraser Engines is committed to delivering engines of exceptional quality and performance. Our rigorous, detailed remanufacturing process ensures every engine we deliver meets our high standards and exceeds your expectations.
THE GOLD STANDARD IN ENGINE REMANUFACTURING
1.) The COMEC ACF200
At Fraser Engines, we embrace cutting-edge technology to ensure that every engine we remanufacture meets the highest standards of quality and performance. A cornerstone of our state-of-the-art machinery is the ACF200 Cylinder Boring-Resurfacing Machine. This sophisticated equipment plays a pivotal role in our engine rebuilding process, allowing us to deliver products that consistently exceed expectations.
Precision Engineered for Excellence
The ACF200 is renowned for its precision and versatility. Our skilled technicians utilize this machine’s advanced capabilities to perform intricate machining tasks with unmatched accuracy.
- Dual Functionality: Boring and resurfacing are critical steps in engine remanufacturing. The ACF200 excels in both, ensuring that each cylinder bore is machined to perfection and that every surface finish meets stringent specifications.
- Unrivaled Accuracy: The ACF200’s precision engineering allows us to achieve the tight tolerances required for modern engines. This precision is not just about meeting specifications; it’s about ensuring the longevity and reliability of each Fraser Engine.
- Adaptable to All Engine Types: The versatility of the ACF200 means that no engine is beyond our capability. Whether dealing with compact car engines or heavy-duty truck engines, our machine handles them all, making it an invaluable asset in our remanufacturing process.
The Fraser Engines Advantage
Incorporating the ACF200 into our remanufacturing process allows us to offer several distinct advantages:
Meticulous Cylinder Machining: Each engine’s cylinders are bored and honed to exact dimensions, ensuring optimal fit and function. This meticulous attention to detail is crucial for the engine’s performance and the vehicle’s overall efficiency.
Flawless Surface Finishing: Proper head gasket sealing is paramount in engine rebuilding. The ACF200 enables us to resurface engine blocks and cylinder heads to precise specifications, ensuring a perfect seal and reliable performance.
Assured Quality and Performance: With the ACF200’s precision, every engine remanufactured at Fraser Engines is a testament to our commitment to quality. We don’t just rebuild engines; we enhance them, setting new benchmarks for performance and reliability in the remanufacturing industry.
2.) CNC Crankshaft Grinder
At Fraser Engines, we pride ourselves on being at the forefront of remanufacturing innovation, and our CNC Crankshaft Grinder stands as a testament to this commitment. As a leading remanufacturer, we boast the utilization of CNC Crank Grinders, a technology that sets us apart and reinforces our position as an industry pioneer in the United States.
Cutting-Edge Technology in Every Turn
Our CNC Crankshaft Grinder represents the pinnacle of modern engineering, bringing the precision of fully automated production processes, typically exclusive to OEM plants, into our remanufacturing workflow.
One-Chucking Complete Grinding: Designed for efficiency and excellence, the CNC Crankshaft Grinder performs complete grinding of crankshafts in a single chucking. This advanced approach ensures consistency and precision throughout the entire process.
Unmatched Precision and Quality: The machine’s capabilities extend far beyond the current industry standards, offering:
- Stabilized Dimensional Accuracy: Every crankshaft remanufactured at Fraser Engines benefits from unparalleled precision, maintaining exacting specifications for every component.
- Superior Surface Quality: The CNC Crankshaft Grinder delivers a finish of the highest quality, ensuring each crankshaft’s longevity and performance.
- Tighter Tolerances: With the advanced technology of our CNC Crankshaft Grinder, we achieve and consistently maintain the tightest tolerances, ensuring each remanufactured crankshaft meets rigorous standards.
3.) Flame Spray Technology
At Fraser Engines, we’re committed to innovation and excellence in every facet of our remanufacturing process. Our continuous pursuit of improvement and our investment in the latest technologies underscore this commitment. A shining example of our forward-thinking approach is the integration of state-of-the-art flame spray technology into our operations.
Pioneering with Flame Spray
Recently, Fraser Engines has taken a significant leap forward by incorporating the latest flame spray machine into our remanufacturing facilities. Installed and fully operational since 2016, this technology marks a new era in our production capabilities.
Setting New Standards in Finish Quality: The flame spray machine elevates our ability to meet and exceed the finish requirements for engine block cylinder bores. With this technology, Fraser Engines effortlessly surpasses the industry benchmarks for remanufacturing current model year engines.
Unparalleled Precision and Durability: Flame spray technology allows us to apply coatings with unmatched precision and uniformity, ensuring each engine block’s durability and performance are maximized. This process not only enhances the quality of the finished product but also extends the lifespan of the engines we remanufacture.
Description
The 5.3L Gen IV Vortec (GEN II Fraser) engine, which was used in GM vehicles from 2007 to 2009, is part of the fourth generation of GM’s small-block V8 family. Known for its reliability, power, and versatility, this engine came in several versions, including the LY5, LMG, LH6, and LC9. Below is a detailed description of the 5.3L Gen IV Vortec engine, including its features, performance, and technical specifications.
Engine Overview
Displacement: 5.3 liters (5328 cc)
Configuration: V8, 90-degree layout
Block Material: Cast iron (LY5, LMG) or aluminum (LH6, LC9)
Head Material: Aluminum
Bore x Stroke: 3.78 in (96 mm) x 3.62 in (92 mm)
Compression Ratio: 9.9:1 (varies slightly depending on specific version)
Valvetrain: Overhead valve (OHV), 2 valves per cylinder (16 valves total)
Technical Features
Fuel System: Sequential Multi-Port Fuel Injection (MPFI)
Ignition System: Coil-on-plug ignition system
Variable Valve Timing (VVT): All versions of the 5.3L Gen IV Vortec engine were equipped with VVT, which optimizes valve timing for better performance and fuel economy.
Active Fuel Management (AFM): The LH6 and LC9 versions feature AFM, which deactivates four of the eight cylinders under light load conditions to improve fuel economy.
Fuel Compatibility: The LMG and LC9 versions were flex-fuel capable, meaning they could run on gasoline or a blend of up to 85% ethanol (E85).
Performance
Horsepower: 295-320 hp at 5200 rpm (varies depending on the application and version)
Torque: 315-338 lb-ft at 4000 rpm (varies depending on the application and version)
Engine Management: Controlled by GM’s Powertrain Control Module (PCM), which adjusts fuel, spark, and air delivery to optimize performance and efficiency.
Design and Construction
Block and Heads: The engine block material depends on the version—cast iron for the LY5 and LMG for durability, and aluminum for the LH6 and LC9 to reduce weight and improve efficiency. The cylinder heads are made of aluminum across all versions, providing good heat dissipation and contributing to overall weight reduction.
Valvetrain and Camshaft: The cam-in-block design uses a single camshaft that operates the pushrods to control the timing of the intake and exhaust valves. The use of Variable Valve Timing (VVT) enhances performance by adjusting the camshaft timing based on driving conditions.
Pistons and Connecting Rods: The pistons are made from hypereutectic aluminum alloy for better durability, while the connecting rods are made of powdered metal, providing strength and reliability under high-stress conditions.
Features and Technologies
Active Fuel Management (AFM): This technology is featured in the LH6 and LC9 versions and allows the engine to deactivate half of its cylinders when full power is not needed, effectively turning the V8 into a V4. This improves fuel efficiency without sacrificing performance when power is required.
Flex-Fuel Capability: The LMG and LC9 versions are flex-fuel capable, meaning they can operate on either regular gasoline or E85 ethanol. This gives the owner more fueling options and can contribute to lower emissions and reduced fuel costs when E85 is available.
Variable Valve Timing (VVT): VVT is a feature across all 5.3L Gen IV engines. It allows the camshaft timing to be adjusted dynamically, optimizing the engine’s performance for different driving situations—whether for more power or better fuel efficiency.
Applications
The 5.3L Gen IV Vortec engine was used across a wide range of GM vehicles between 2007 and 2009, particularly in full-size trucks and SUVs. Below are some of the vehicles that used this engine:
Chevrolet Silverado 1500 (2007-2009) – LY5, LMG, LC9
Chevrolet Avalanche (2007-2009) – LC9
Chevrolet Suburban 1500 (2007-2009) – LY5, LMG, LC9
Chevrolet Tahoe (2007-2009) – LY5, LMG, LC9
Chevrolet Trailblazer (2007-2009) – LH6
Chevrolet Express 1500 (2007-2009) – LMG
GMC Sierra 1500 (2007-2009) – LY5, LMG, LC9
GMC Yukon (2007-2009) – LY5, LMG, LC9
GMC Yukon XL 1500 (2007-2009) – LY5, LMG, LC9
GMC Envoy (2007-2009) – LH6
Cadillac Escalade (2007-2009) – LY5, LMG
Hummer H3 Alpha (2008-2009) – LH6
Saab 9-7X (2007-2009) – LH6
Fuel and Efficiency
Flex-Fuel Capability: The LMG and LC9 versions are capable of running on E85 ethanol, providing a more environmentally friendly option compared to regular gasoline. Flex-fuel capability allows these engines to reduce emissions and offer potential fuel cost savings.
Fuel Efficiency: The inclusion of Active Fuel Management (AFM) in the LH6 and LC9 engines helps improve fuel economy by deactivating half of the cylinders when cruising or under light load, effectively reducing fuel consumption.
Reliability and Maintenance
Durability: The cast iron block versions (LY5, LMG) are known for their durability, making them ideal for heavy-duty applications. The aluminum block versions (LH6, LC9) offer a good balance of strength and weight reduction, contributing to better efficiency.
Common Issues: Some common issues with the 5.3L Gen IV engine include oil consumption, particularly in engines with Active Fuel Management (AFM). Regular maintenance, such as timely oil changes and keeping the AFM system clean, can help mitigate these issues.
Maintenance Requirements: Routine maintenance, including oil changes, spark plug replacements, and coolant flushes, is straightforward and essential for keeping the engine running smoothly. The coil-on-plug ignition system also simplifies maintenance by eliminating traditional spark plug wires.
Tech Updates
5.3L GM Vortec Engine (2007–2009) – Technical Updates by Fraser Engines
The 5.3L GM Vortec V8 engine, used in GM trucks and SUVs between 2007 and 2009, is well-known for its balance of power, efficiency, and towing capability. However, this generation of the 5.3L engine often experiences Active Fuel Management (AFM) system failures, oil consumption, lifter malfunctions, and carbon buildup. Fraser Engines addresses these issues with advanced remanufacturing processes and critical technical updates to ensure reliability, durability, and improved performance.
1. AFM (Active Fuel Management) System Solutions
The AFM system, designed to deactivate cylinders for fuel efficiency, frequently causes lifter failure, oil consumption, and engine misfires. Fraser Engines offers two solutions:
- AFM Delete Option: AFM is fully removed, restoring full-time V8 operation. This eliminates lifter failures, reduces oil consumption, and improves performance.
- Upgraded AFM Components: If AFM is retained, premium lifters and reinforced components are installed to extend durability and reliability.
2. Piston and Ring Upgrades to Resolve Oil Consumption
Excessive oil consumption is a significant issue with the factory 5.3L engine due to poorly designed piston rings and wear over time. Fraser Engines resolves this with:
- High-Strength Hypereutectic Pistons: These pistons provide superior durability, heat resistance, and reduced wear under high-load conditions.
- Premium Piston Rings: Advanced oil control and compression rings ensure tighter sealing, reducing blow-by and oil usage.
- Precision Honed Cylinders: Optimized cylinder walls ensure the piston rings seat properly, restoring compression and reducing oil consumption.
3. Timing Chain System Upgrades
Timing chain stretch and tensioner wear can cause noisy operation and misalignment of engine timing. Fraser Engines addresses this with:
- Heavy-Duty Timing Chains: Heat-treated, high-strength timing chains resist stretching and premature wear.
- Improved Tensioners and Guides: Upgraded materials ensure proper chain tension, reducing slack, noise, and failure risk.
- Precision Timing Alignment: Accurate installation ensures proper synchronization of the camshaft and crankshaft, improving overall engine performance.
4. Carbon Buildup Mitigation
The Active Fuel Management (AFM) system and direct injection contribute to carbon buildup on the intake valves and combustion chambers, affecting efficiency. Fraser Engines resolves this with:
- Precision Valve Cleaning and Machining: Intake valves are cleaned and machined to remove carbon deposits, restoring airflow and engine efficiency.
- Revised Valve Seats: Upgraded materials improve durability and resistance to carbon buildup.
- Optional Catch Can Installation: Recommended to minimize oil vapor entering the intake, reducing future carbon buildup.
5. Cylinder Head Refinements
Valve train and cylinder head wear can lead to ticking noises, oil leaks, and poor performance. Fraser enhances the cylinder heads with:
- Pressure-Tested Cylinder Heads: Heads are thoroughly tested to ensure structural integrity and eliminate cracks.
- New Valve Guides and Seals: High-quality valve guides and seals prevent oil leaks and restore proper valve operation.
- Precision-Cut Valves and Seats: Valves and seats are machined for optimal airflow and combustion efficiency, improving power output.
6. Oil System Improvements
Low oil pressure, sludge buildup, and leaks are common in the factory 5.3L engine. Fraser ensures consistent lubrication with:
- High-Volume Oil Pump: Upgraded to provide steady and consistent oil pressure to all components, even under heavy loads.
- Cleaned Oil Passages: Oil galleries are thoroughly cleaned to eliminate sludge buildup and ensure smooth lubrication.
- Premium Oil Seals and Gaskets: Leak-free operation ensures a clean and reliable oil system.
7. Reinforced Bottom End for Durability
The crankshaft, rods, and bearings are upgraded for enhanced strength and longevity:
- Polished and Balanced Crankshaft: Precision machining ensures smooth operation, reduced friction, and vibration-free performance.
- High-Quality Bearings: Premium main and rod bearings reduce wear and improve load handling under high-stress conditions.
8. Cooling System Refinements to Prevent Overheating
Overheating can cause head gasket failures and warped components. Fraser improves the cooling system with:
- Cleaned and Restored Water Jackets: Improved coolant flow ensures even heat dissipation throughout the engine.
- Decked Block and Heads: Flat mating surfaces provide superior gasket sealing, preventing coolant leaks.
- Premium MLS (Multi-Layer Steel) Head Gaskets: Withstand high pressures and temperatures for long-term reliability.
9. Comprehensive Gasket and Seal Replacement
To ensure a leak-free engine, Fraser Engines installs all-new premium-grade gaskets and seals:
- MLS Head Gaskets: Superior durability under extreme conditions.
- Valve Cover, Timing Cover, and Oil Pan Gaskets: Prevent oil leaks from critical areas.
- Rear Main Seal: Ensures long-lasting, leak-free operation.
10. Rigorous Testing for Quality and Reliability
Every remanufactured 5.3L GM Vortec engine undergoes extensive quality control and testing to meet or exceed OEM standards:
- Compression Testing: Verifies proper cylinder sealing and combustion efficiency.
- Oil Pressure Testing: Confirms consistent lubrication to all engine components.
- Leak-Down Testing: Ensures gaskets, seals, and piston rings are leak-free.
- Timing System Verification: Guarantees proper camshaft and crankshaft synchronization.
Applications for the 5.3L GM Vortec Engine (2007–2009):
The remanufactured 5.3L Vortec engine fits a wide range of GM vehicles, including:
- Chevrolet Silverado 1500 (2007–2009)
- GMC Sierra 1500 (2007–2009)
- Chevrolet Tahoe (2007–2009)
- Chevrolet Suburban 1500 (2007–2009)
- GMC Yukon/Yukon XL 1500 (2007–2009)
- Cadillac Escalade (2007–2009)
- Chevrolet Avalanche (2007–2009)
Why Choose Fraser Engines’ 5.3L GM Vortec Engine?
Fraser Engines transforms the 5.3L GM Vortec into a reliable, high-performing engine by addressing factory flaws and implementing critical updates. Our precision machining, premium components, and rigorous testing ensure:
- Resolved AFM Issues (AFM Delete Option Available)
- Reduced Oil Consumption
- Improved Timing Chain Durability
- Eliminated Carbon Buildup
- Enhanced Cooling and Lubrication Systems
- Leak-Free Operation and Extended Engine Life
Power. Precision. Performance. Fraser Advantage.
Restore your GM truck or SUV with confidence – choose Fraser Engines.
Specifications
SPECIFICATIONS
| Metric | Value |
|---|---|
| Bore | 96 mm |
| Stroke | 92 mm |
| Compression ratio | 10.3:1 |
| Max power @ RPM | 315 hp @ 5,200 rpm |
| Max torque @ RPM | 338 lb-ft @ 4,400 rpm |
| Cylinder head | Cast aluminum |
| Cylinder block | Cast iron |
| Camshaft drive | Timing chain |
Break-In Procedures
Use conventional or break-in oil (non-synthetic) for the first 600 miles of operation. Do not drive for long periods at any single speed, always vary your speed. Do not tow a trailer or put other heavy loads on the vehicle. Check the engine oil and coolant levels daily.
At 600 Miles change the engine oil and filter using conventional (non-synthetic) oil. Check fuel and ignition settings; adjust valves (where applicable).
Vehicle Fitments
VEHICLE FITMENTS
IF YOU DON’T SEE YOUR VEHICLE – CALL FRASER SALES
Chevrolet Vehicles
- Chevrolet Silverado 1500 (2007-2009) – LY5, LMG, LC9
- Chevrolet Avalanche (2007-2009) – LC9
- Chevrolet Suburban 1500 (2007-2009) – LY5, LMG, LC9
- Chevrolet Tahoe (2007-2009) – LY5, LMG, LC9
- Chevrolet Trailblazer (2007-2009, limited trims) – LH6
- Chevrolet Express 1500 (2007-2009) – LMG
GMC Vehicles
- GMC Sierra 1500 (2007-2009) – LY5, LMG, LC9
- GMC Yukon (2007-2009) – LY5, LMG, LC9
- GMC Yukon XL 1500 (2007-2009) – LY5, LMG, LC9
- GMC Envoy (2007-2009, limited trims) – LH6
Cadillac Vehicles
- Cadillac Escalade (2007-2009, specific versions) – LY5, LMG
Hummer Vehicles
- Hummer H3 Alpha (2008-2009) – LH6
Saab Vehicles
- Saab 9-7X (2007-2009) – LH6 (Aero and other high trims)
These Gen IV 5.3L Vortec engines were versatile and provided a balance of power and efficiency, fitting into GM’s trucks, SUVs, and some specialty vehicles from 2007 to 2009. Each of these engines featured various technologies like Variable Valve Timing (VVT), Active Fuel Management (AFM), and flex-fuel capabilities to enhance performance and improve fuel economy across these different models.
Expertly Remanufactured 5.3L GM Engines by Fraser Engines & Transmissions
Fraser Engines & Transmissions is your trusted partner for 5.3L GM engine remanufacturing, offering unmatched quality and performance. Our state-of-the-art remanufacturing process involves precision engineering and the use of high-grade materials, ensuring each engine surpasses original specifications for durability and reliability.
Comprehensive Warranty Support for Your Peace of Mind
We back our remanufactured our 5.3L GM engines with an industry-leading warranty, reflecting our commitment to quality and customer satisfaction. This robust warranty coverage is our guarantee of reliability, offering you peace of mind with every purchase.
Tailored Consultation to Match Your Vehicle’s Needs
Our team of experts is dedicated to providing personalized consultation services, ensuring that your 5.3L GM engine selection is perfectly aligned with your vehicle’s performance requirements. We focus on understanding your needs to recommend the best engine solution, promising optimal performance and seamless integration.
Transform Your Vehicle with a Remanufactured 5.3L GM Engine
Opting for a remanufactured 5.3L GM engine from Fraser Engines & Transmissions means choosing an upgrade that enhances your vehicle’s efficiency, power, and reliability. Explore our selection of premium remanufactured engines today and take the first step towards a superior driving experience.