fits year: 1999–2007.

( Brand: Gm ), ( Manufacturer Part Number: 325LM7E ), ( Part Type: Engine Motor ), ( Warranty: 1 Year ), ( Core Charge: 350 ), ( Country Region Of Manufacture: United States )
The GM 325LM7E 5.3L V8 engine, also known as LM7, L59, and LS engine, is a powerful and reliable motor that was in production from 1999 to 2007. This engine is particularly popular for its use in various GM vehicles, such as Chevrolet Silverado, Suburban, Tahoe, and GMC Sierra, among others.
The GM 325LM7E engine is a 5.3-liter V8 motor, which means it has eight cylinders arranged in a V-shape. This design provides a smooth and powerful operation, making it ideal for towing and hauling heavy loads. The engine is equipped with a multi-displacement system (MDS), which allows it to run on four cylinders under light load conditions to improve fuel efficiency and reduce emissions.
The engine features a cast-iron block and aluminum heads, which contribute to its durability and lightweight design. It also has a compression ratio of 10.0:1, which provides ample power and torque. The engine is mated to a 4L60-E or 4L80-E automatic transmission, depending on the vehicle model.
The GM 325LM7E engine is known for its reliability and longevity. It has a displacement of 325 cubic inches, which provides it with a decent amount of power. The engine is also equipped with a sequential multi-port fuel injection system, which ensures precise fuel delivery for optimal combustion and performance.
In summary, the GM 325LM7E 5.3L V8 engine is a robust and reliable powerhouse that provides ample power and torque for towing and hauling, while also offering excellent fuel efficiency under light load conditions. Its cast-iron block and aluminum heads, MDS, and sequential multi-port fuel injection system contribute to its durability and performance. This engine is a popular choice for those who demand power, reliability, and longevity from their vehicles.
Pros of buying a GM 325LM7E 5.3L V8 engine:1. Reliability: These engines have a reputation for being reliable and durable. They have been used in various GM vehicles for a long time.
2. Availability of Parts: Due to their widespread use, parts for these engines are readily available and relatively inexpensive.
3. Power: The 5.3L V8 engine provides a good balance of power and fuel efficiency. It's capable of delivering around 285 horsepower.
4. Affordability: Compared to some newer engines, the 5.3L V8 is often more affordable, both in terms of the initial purchase price and the cost of maintenance.
Cons of buying a GM 325LM7E 5.3L V8 engine:1. Fuel Consumption: Although it's more fuel-efficient than some V8 engines, it still consumes more fuel than smaller engines or some newer, more efficient engines.
2. Emissions: Older engines like the 5.3L V8 may not meet the latest emission standards, which could be a problem if you live in an area with strict emissions regulations.
3. Maintenance: While parts are relatively inexpensive, regular maintenance is still necessary to keep the engine running smoothly. This includes tasks like oil changes, tune-ups, and timing belt replacements.
Conclusion:If you're looking for a reliable, powerful engine that's relatively affordable to maintain and repair, the GM 325LM7E 5.3L V8 could be a good choice. However, consider factors like fuel consumption and emissions regulations before making a decision.
Recommendation:Before buying any used engine, it's important to inspect it thoroughly and have it checked by a trusted mechanic. This can help ensure that you're getting a good engine that will serve you well for many years to come.
Remaining gaskets as well are included. SIM Testing Each engine is tested after reassembly, with the cooling and oil systems being fully pressurized crank spun at high RPM to verify compression build quality. New parts include bearings, pistons, rings, lifters, oil pump, gaskets, Vito valve seals, freeze plugs, galley plugs and either a new timing chain gears. All parts are visually inspected as well.
The engine has new oil pump is installed along with head bolts. Residential and/or Lift gate fees are more.
Machining and New Parts Deck surfaces are CNC machined new parts added. Inspection Menfolks testing uses magnetic particles to inspect metal, checking for microscopic cracks and fissures that will cause long-term failure. P/U Available.