-20%
Click to zoom in
Refresh a classic small-block engine bay without changing the stock-height profile
Spectre 5258 replaces compatible perimeter-bolt Chevrolet small-block covers with a smooth triple-chrome pair. The baffled three-hole design supports the factory-style oil-fill, breather, and PCV arrangement while the OEM-style sealing edge helps the covers seat correctly.
Key Features
- Spectre 5258: Triple chrome-plated steel construction with a smooth top
- Stock-height profile for compatible Chevrolet small-block engine bays
- Baffled design for breather-system compatibility
- Three-hole arrangement for oil-fill, breather, and PCV components
- OEM-style sealing edge for a consistent gasket interface
- Sold as a matched pair
Fitment
Use Spectre 5258 only for the applications below. Confirm every listed qualifier and exclusion.
| Years | Make | Model | Details |
|---|---|---|---|
| Configuration-specific | Verified applications | Valve Cover Set | 1958-1986 Chevrolet small-block 265-400 engines using perimeter-bolt, stock-height, three-hole valve covers; Confirm cylinder-head bolt pattern, oil-fill, breather, PCV, and underhood clearance before installation; Excludes: Center-bolt cylinder heads; Engines outside the manufacturer-listed 265-400 small-block range |
Specifications
| Detail | Value |
|---|---|
| Brand | Spectre |
| Manufacturer Part Number | 5258 |
| Product Type | Valve Cover Set |
| Engine Family | Chevrolet small-block 265-400 |
| Manufacturer Years | 1958-1986 |
| Material | Steel |
| Finish | Triple chrome plated |
| Height | 3 in (76 mm) |
| Length | 19.75 in (502 mm) |
| Width | 5 in (127 mm) |
| Mounting Style | Perimeter bolt |
| Top Style | Smooth |
| Baffled | Yes |
| Hole Count | Three |
| Package Quantity | Two |
| UPC | 089601525808 |
What's Included
- Two chrome-plated steel valve covers for Spectre 5258
- Not included: Valve cover gaskets
- Not included: Mounting hardware
- Not included: Oil filler cap
- Not included: Breathers
- Not included: PCV valve and grommets
About Spectre
Spectre Performance develops engine dress-up and intake components with published dimensions and application details. Its valve-cover range includes distinct mounting styles, heights, finishes, and opening layouts for specific engine families.
Related Parts
- Select compatible perimeter-bolt gaskets, hold-down hardware, spreader bars, oil-fill components, breathers, and PCV hardware for the exact Chevrolet small-block configuration.
FAQ
What is the 5258?It is a matched pair of smooth, stock-height, chrome-plated steel valve covers for the manufacturer-listed Chevrolet small-block engine range.
Which engines are supported?Spectre specifies 1958-1986 Chevrolet small-block 265-400 engines with the compatible perimeter-bolt valve-cover interface.
Are these center-bolt valve covers?No. These use the earlier perimeter-bolt mounting pattern and should not be installed on center-bolt cylinder heads.
How tall are the covers?Each cover uses a stock-height 3 inch profile.
Are the covers baffled?Yes. The manufacturer identifies the pair as baffled for breather-system compatibility.
What comes in the package?The package contains two chrome-plated steel valve covers.
Are gaskets and hardware included?No. Gaskets, fasteners, oil-fill parts, breathers, PCV components, and grommets must be selected separately for the engine.
What should be checked before installation?Confirm the perimeter-bolt pattern, cylinder-head sealing surface, opening layout, gasket choice, accessory clearance, and underhood clearance before removing the existing covers.
Installation Instructions
- Confirm the engine is within the manufacturer-listed Chevrolet small-block range and uses the compatible perimeter-bolt cylinder-head pattern.
- Select the required gaskets, fasteners, oil-fill, breather, PCV, and grommet components before disassembly.
- Remove the existing covers and clean the cylinder-head sealing surfaces without allowing debris into the engine.
- Position the new gaskets and valve covers, then tighten the fasteners evenly to the engine manufacturer's specification.
- Install the oil-fill, breather, and PCV components, verify hose routing and clearance, and check for leaks after the first heat cycle.
California Proposition 65 Warning: This product can expose you to chemicals known to the State of California to cause cancer and reproductive harm. For more information, visit P65Warnings.ca.gov.
Engine
Shop automotive engine parts, cooling-system components, oil-system upgrades, ignition parts, pulleys, sensors, gaskets, fuel components, and engine-bay accessories at Black Ops Auto Works. This collection covers vehicle-specific replacement parts, performance upgrades, supporting hardware, and universal components for street cars, trucks, SUVs, Jeeps, diesel vehicles, off-road builds, and motorsport applications. Engine Parts and Performance Components The Engine collection brings together components used throughout the engine, lubrication system, cooling system, ignition system, fuel system, crankcase ventilation, accessory drive, and engine compartment. Available products range from replacement sensors and gaskets to rotating-assembly parts, performance cooling systems, supercharger pulleys, catch cans, cylinder heads, camshafts, intake manifolds, and engine-bay dress-up components. Engine compatibility cannot be determined from vehicle model alone. Confirm the exact year, make, ...
View Engine Products
Spectre
Shop Spectre air intake systems, replacement air filters, intake tubing, couplers, clamps, engine accessories, and service products by exact manufacturer part number and verified application.Choose Your Part Match the complete Spectre manufacturer part number Confirm the listed year, make, model, engine, and emissions notes for direct-fit products Verify diameter, material, bend, connection, sensor, and mounting details for universal components Review included filters, clamps, adapters, hardware, and current installation instructions Vehicle FitmentUse vehicle filters to narrow the selection, then verify every engine, drivetrain, chassis, mounting and factory-equipment requirement in the product details. Components selected by dimensions or system interface require a complete specification check rather than a vehicle-name match.Related Spectre Products All Spectre products Cold air intakes Air filters Air intake components Frequently Asked QuestionsHow do I confirm a Spectre part fi...
View Spectre Products