{"product_id":"comp-cams-494-od-valve-guide-cutter","title":"Comp Cams .494 OD Valve Guide Cutter","description":"\u003cdiv class=\"po-desc\" data-gen=\"v2\"\u003e\n\u003cp\u003eCOMP Cams .494 OD Valve Guide Cutter. Intake valves let the air and fuel mixture into the cylinder; exhaust valves let the burned gases out.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eValve guide cutters available to cut guide to .425\" .446\" .494\" .500\" .530\" .625\"\u003c\/li\u003e\n\u003cli\u003eRequires the use of an arbor\/pilot, which are available for 5\/16\", 11\/32\" \u0026amp; 3\/8\" valve stem sizes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e COMP Cams\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart type:\u003c\/strong\u003e Valve\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eThis listing does not name specific vehicles. Match the part number and the specifications with the part you are replacing.\u003c\/p\u003e\n\u003ch3\u003eWhat it does\u003c\/h3\u003e\n\u003cp\u003eValves are usually replaced during a cylinder head rebuild, along with guides, seals and a valve job. Using the correct part for your exact engine keeps oil pressure, sealing and timing where the engine was designed to run, and doing related parts at the same time saves taking it apart twice.\u003c\/p\u003e\n\u003ch3\u003eInstallation \u0026amp; tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHave the valve seats cut or lapped so the new valves seal fully.\u003c\/li\u003e\n\u003cli\u003eValve stem seals: Always new with new valves.\u003c\/li\u003e\n\u003cli\u003eHead gasket: The head comes off for this job.\u003c\/li\u003e\n\u003cli\u003eWork on a cool engine with the vehicle secured, and use a service manual for your vehicle for torque specs and procedures.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCan I install it myself?\u003c\/strong\u003e\u003cbr\u003eMany owners do this job at home with basic tools and a service manual for their vehicle. If you are not sure, have it fitted by a qualified mechanic.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should I check before ordering?\u003c\/strong\u003e\u003cbr\u003eCompare the part number, specifications and fitment on this page with your vehicle and with the part you are replacing.\u003c\/p\u003e\n\u003ch3\u003eBefore you order\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003eMeasure the part you are replacing and compare it with the specifications above.\u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"COMP Cams","offers":[{"title":"Default Title","offer_id":67736220631354,"sku":"0342T","price":102.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/8245\/2538\/files\/215396949685bc5e178c65d7.jpg?v=1792452601","url":"https:\/\/partotter.com\/products\/comp-cams-494-od-valve-guide-cutter","provider":"PartOtter","version":"1.0","type":"link"}