{"product_id":"spectre-sb-chevy-oem-valve-cover-set-chrome","title":"Spectre Chrome Valve Cover Set for 1958-1986 Chevy SBC","description":"\u003ch4\u003eRefresh a classic small-block engine bay without changing the stock-height profile\u003c\/h4\u003e\u003cp\u003eSpectre 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.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSpectre 5258: Triple chrome-plated steel construction with a smooth top\u003c\/li\u003e\n\u003cli\u003eStock-height profile for compatible Chevrolet small-block engine bays\u003c\/li\u003e\n\u003cli\u003eBaffled design for breather-system compatibility\u003c\/li\u003e\n\u003cli\u003eThree-hole arrangement for oil-fill, breather, and PCV components\u003c\/li\u003e\n\u003cli\u003eOEM-style sealing edge for a consistent gasket interface\u003c\/li\u003e\n\u003cli\u003eSold as a matched pair\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFitment\u003c\/h4\u003e\u003cp\u003eUse Spectre 5258 only for the applications below. Confirm every listed qualifier and exclusion.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003eConfiguration-specific\u003c\/td\u003e\n\u003ctd\u003eVerified applications\u003c\/td\u003e\n\u003ctd\u003eValve Cover Set\u003c\/td\u003e\n\u003ctd\u003e1958-1986 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\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSpectre\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Part Number\u003c\/td\u003e\n\u003ctd\u003e5258\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eValve Cover Set\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine Family\u003c\/td\u003e\n\u003ctd\u003eChevrolet small-block 265-400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Years\u003c\/td\u003e\n\u003ctd\u003e1958-1986\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eTriple chrome plated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e3 in (76 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e19.75 in (502 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e5 in (127 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Style\u003c\/td\u003e\n\u003ctd\u003ePerimeter bolt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTop Style\u003c\/td\u003e\n\u003ctd\u003eSmooth\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBaffled\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHole Count\u003c\/td\u003e\n\u003ctd\u003eThree\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage Quantity\u003c\/td\u003e\n\u003ctd\u003eTwo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e089601525808\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch4\u003eWhat's Included\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTwo chrome-plated steel valve covers for Spectre 5258\u003c\/li\u003e\n\u003cli\u003eNot included: Valve cover gaskets\u003c\/li\u003e\n\u003cli\u003eNot included: Mounting hardware\u003c\/li\u003e\n\u003cli\u003eNot included: Oil filler cap\u003c\/li\u003e\n\u003cli\u003eNot included: Breathers\u003c\/li\u003e\n\u003cli\u003eNot included: PCV valve and grommets\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eAbout Spectre\u003c\/h4\u003e\u003cp\u003eSpectre 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.\u003c\/p\u003e\u003ch4\u003eRelated Parts\u003c\/h4\u003e\u003cul\u003e\u003cli\u003eSelect compatible perimeter-bolt gaskets, hold-down hardware, spreader bars, oil-fill components, breathers, and PCV hardware for the exact Chevrolet small-block configuration.\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eFAQ\u003c\/h4\u003e\u003cstrong\u003eWhat is the 5258?\u003c\/strong\u003e\u003cp\u003eIt is a matched pair of smooth, stock-height, chrome-plated steel valve covers for the manufacturer-listed Chevrolet small-block engine range.\u003c\/p\u003e\u003cstrong\u003eWhich engines are supported?\u003c\/strong\u003e\u003cp\u003eSpectre specifies 1958-1986 Chevrolet small-block 265-400 engines with the compatible perimeter-bolt valve-cover interface.\u003c\/p\u003e\u003cstrong\u003eAre these center-bolt valve covers?\u003c\/strong\u003e\u003cp\u003eNo. These use the earlier perimeter-bolt mounting pattern and should not be installed on center-bolt cylinder heads.\u003c\/p\u003e\u003cstrong\u003eHow tall are the covers?\u003c\/strong\u003e\u003cp\u003eEach cover uses a stock-height 3 inch profile.\u003c\/p\u003e\u003cstrong\u003eAre the covers baffled?\u003c\/strong\u003e\u003cp\u003eYes. The manufacturer identifies the pair as baffled for breather-system compatibility.\u003c\/p\u003e\u003cstrong\u003eWhat comes in the package?\u003c\/strong\u003e\u003cp\u003eThe package contains two chrome-plated steel valve covers.\u003c\/p\u003e\u003cstrong\u003eAre gaskets and hardware included?\u003c\/strong\u003e\u003cp\u003eNo. Gaskets, fasteners, oil-fill parts, breathers, PCV components, and grommets must be selected separately for the engine.\u003c\/p\u003e\u003cstrong\u003eWhat should be checked before installation?\u003c\/strong\u003e\u003cp\u003eConfirm the perimeter-bolt pattern, cylinder-head sealing surface, opening layout, gasket choice, accessory clearance, and underhood clearance before removing the existing covers.\u003c\/p\u003e\u003ch4\u003eInstallation Instructions\u003c\/h4\u003e\u003col\u003e\n\u003cli\u003eConfirm the engine is within the manufacturer-listed Chevrolet small-block range and uses the compatible perimeter-bolt cylinder-head pattern.\u003c\/li\u003e\n\u003cli\u003eSelect the required gaskets, fasteners, oil-fill, breather, PCV, and grommet components before disassembly.\u003c\/li\u003e\n\u003cli\u003eRemove the existing covers and clean the cylinder-head sealing surfaces without allowing debris into the engine.\u003c\/li\u003e\n\u003cli\u003ePosition the new gaskets and valve covers, then tighten the fasteners evenly to the engine manufacturer's specification.\u003c\/li\u003e\n\u003cli\u003eInstall the oil-fill, breather, and PCV components, verify hose routing and clearance, and check for leaks after the first heat cycle.\u003c\/li\u003e\n\u003c\/ol\u003e\u003cp\u003e\u003cstrong\u003eCalifornia Proposition 65 Warning:\u003c\/strong\u003e 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.\u003c\/p\u003e","brand":"Spectre","offers":[{"title":"Default Title","offer_id":67889090297935,"sku":"SPE5258","price":43.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/spectre-5258-chrome-valve-cover-set-01-1000.webp?v=1793108547","url":"https:\/\/www.blackopsautoworks.com\/products\/spectre-sb-chevy-oem-valve-cover-set-chrome","provider":"Black Ops Auto Works","version":"1.0","type":"link"}