Description
Professional Overview
The Chevy 350 5.7L V8 2 Bolt Main Remanufactured Engine is a professionally rebuilt small-block Chevrolet replacement engine designed for selected 1987–1995 Chevrolet and GMC applications.
The 350 cubic-inch V8 has long been used across a wide range of Chevrolet and GMC vehicles because of its combination of displacement, durability, serviceability, and broad aftermarket support. This remanufactured version provides a practical replacement option for applications requiring the 5.7L V8 2-bolt main configuration.
The supplied application information identifies this engine as a 1987–1995 Chevrolet/GMC 5.7L 2BT V8, with VIN Code K and compatible block casting numbers 638, 548, 148, 727, and 880.
Before ordering, engine fitment should be confirmed through the vehicle’s specific application information, the Vehicle Fitment data, and the applicable casting numbers.
Applications and Compatibility
This remanufactured engine is specified for select 1987–1995 Chevrolet and GMC vehicles equipped with the corresponding 5.7L V8 configuration.
The supplied technical information identifies the following compatibility details:
- Model years: 1987–1995
- Vehicle manufacturers: Chevrolet and GMC
- Engine displacement: 5.7L
- Engine configuration: V8
- Main bearing configuration: 2-bolt main
- VIN Code: K
- Block casting numbers: 638, 548, 148, 727, 880
Because Chevrolet and GMC used multiple engine configurations during these model years, matching the vehicle’s existing engine specifications is important before purchasing. The block casting number and VIN information can provide useful confirmation when evaluating compatibility.
Design and Performance
The 5.7L Chevrolet small-block V8 provides the displacement and cylinder configuration associated with the traditional Chevy 350 platform. Its established architecture makes it a familiar engine platform for repair shops, restoration projects, replacement applications, and vehicles requiring a factory-style replacement powerplant.
This engine is supplied as a remanufactured unit, meaning the engine is disassembled, cleaned, inspected, machined, rebuilt with specified new components, and tested before being offered for installation.
The remanufacturing process is intended to restore the engine’s critical operating surfaces and internal components while providing a consistent replacement unit for the applicable vehicle.
Key Features and Benefits
The Chevy 350 5.7L V8 2 Bolt Main remanufactured engine includes a comprehensive rebuilding process designed to address the major areas affecting engine reliability.
Deep Cleaning:
Each engine is completely disassembled before cleaning. Cast-iron components are hot tanked, while aluminum components are thermally cleaned where applicable.
Component Inspection:
Magnaflux testing is used to inspect metal components for microscopic cracks and fissures that could contribute to premature failure. Components are also visually inspected throughout the process.
Precision Machining:
Deck surfaces are CNC machined as part of the rebuilding process. Machining helps restore critical surfaces and provides the proper foundation for reassembly.
New Internal Components:
The remanufacturing process includes new bearings, pistons, rings, lifters, oil pump, gaskets, Viton™ valve seals, freeze plugs, and galley plugs. Depending on the engine configuration, the applicable timing components are also replaced.
Timing System Renewal:
The rebuilding process includes either a new timing chain with new tensioners or a new timing belt with a new tensioner, depending on the engine’s original timing design.
Water Pump Replacement Where Applicable:
If the engine uses a timing-driven water pump, a new water pump is installed as part of the remanufacturing process.
SIM Testing:
After assembly, each engine is SIM tested. The cooling and oil systems are fully pressurized, while the crankshaft is spun at high RPM to verify compression and overall build quality.
Remanufacturing Process
The engine’s remanufacturing process is performed in several important stages.
1. Complete Disassembly
The engine is fully disassembled so that its individual components can be cleaned and evaluated rather than simply repairing only the visibly damaged areas.
2. Cleaning
Components undergo thorough cleaning. Cast-iron components are hot tanked, while aluminum components are thermally cleaned where appropriate.
3. Inspection
Critical metal components undergo Magnaflux inspection to identify microscopic cracks and fissures. Visual inspection is also performed on the engine components.
4. Machining
Important engine surfaces, including the deck surfaces, are CNC machined as required during the rebuilding process.
5. Installation of New Components
Specified replacement components are installed, including bearings, pistons, rings, lifters, oil pump, gaskets, valve seals, freeze plugs, and galley plugs.
6. Timing Component Replacement
The appropriate timing chain or timing belt components are replaced, including the corresponding tensioner. A timing-driven water pump is also replaced when applicable.
7. Final Assembly and Testing
After the engine has been reassembled, it undergoes SIM testing. The cooling and lubrication systems are pressurized and the crankshaft is spun at high RPM to verify compression and build quality.
Technical Specifications
| Specification | Details |
|---|---|
| Product Type | Remanufactured Replacement Engine |
| Engine Family | Chevy 350 |
| Displacement | 5.7L / 350 cu. in. |
| Configuration | V8 |
| Main Bearing Design | 2-Bolt Main |
| Model Years | 1987–1995 |
| Vehicle Makes | Chevrolet, GMC |
| VIN Code | K |
| Block Casting Numbers | 638, 548, 148, 727, 880 |
| Engine Condition | Remanufactured |
| Cleaning Process | Hot Tanking / Thermal Cleaning |
| Inspection | Magnaflux and Visual Inspection |
| Deck Machining | CNC Machined |
| Replacement Components | Bearings, pistons, rings, lifters, oil pump, gaskets, Viton™ valve seals, freeze plugs, galley plugs |
| Timing Components | New timing chain/tensioners or timing belt/tensioner, as applicable |
| Water Pump | New pump when timing-driven |
| Final Testing | SIM Tested |
| Testing Procedure | Cooling and oil systems pressurized; crank spun at high RPM |
| Warranty | Up to 7 years / 1 million miles, with available Pure Care™ upgrade |
Who This Engine Is For
This Chevy 350 5.7L remanufactured engine is intended for customers who need a replacement powerplant for a compatible 1987–1995 Chevrolet or GMC application.
It can be particularly suitable for:
- Engine replacement projects
- Chevrolet and GMC restoration projects
- Older truck and utility vehicle repairs
- Professional repair-shop installations
- Vehicles requiring a replacement 5.7L V8
- Applications matching the specified 2-bolt main configuration
- Vehicles matching the listed block casting numbers
The most important consideration is proper application matching. Customers should verify their existing engine’s casting number, VIN code, displacement, configuration, and vehicle application before ordering.
Ordering and Support
Before ordering, verify that the engine matches your vehicle’s required configuration. The supplied information recommends using the Vehicle Fitment information and applicable casting numbers to confirm compatibility.
For the most accurate application match, compare your existing engine’s identification information with the specifications listed above. If there is uncertainty regarding compatibility, professional fitment verification is recommended before purchase.
Every engine undergoes a detailed remanufacturing and testing process designed to restore the engine for dependable service. The supplied warranty information states that engines can be covered for up to 7 years and 1 million miles, with an available Pure Care™ no-fault protection upgrade.
Frequently Asked Questions
What is the displacement of this Chevy 350 engine?
This is a 5.7L V8, commonly referred to as the Chevy 350 because of its approximately 350 cubic-inch displacement.
Is this engine a 2-bolt or 4-bolt main?
This product is specified as a 2-bolt main engine.
What vehicles does this engine fit?
The supplied application information identifies 1987–1995 Chevrolet and GMC vehicles. Exact fitment should be confirmed using the vehicle application and engine identification information.
What are the compatible block casting numbers?
The supplied description lists 638, 548, 148, 727, and 880 as compatible block casting numbers.
What is the VIN code?
The supplied description identifies the engine with VIN Code K.
How is the engine inspected?
The engine undergoes Magnaflux testing for microscopic cracks and fissures, along with visual inspection of its components.
What new components are installed?
The remanufacturing process includes new bearings, pistons, rings, lifters, oil pump, gaskets, Viton™ valve seals, freeze plugs, and galley plugs, along with applicable timing components.
Is the engine tested after rebuilding?
Yes. Each engine is SIM tested after reassembly. The oil and cooling systems are pressurized and the crankshaft is spun at high RPM to verify compression and build quality.
What warranty is available?
The supplied information states that each engine comes with up to 7 years and 1 million miles of warranty, with an available Pure Care™ no-fault protection upgrade.






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