{"product_id":"manley-ford-4-6l-dohc-4-valve-triple-groove-37mm-race-master-intake-valves","title":"Manley Ford 4.6L DOHC (4 Valve) 37mm Race Master Intake Valves — Fits 1999-2008 Ford Mustang\/GT","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Manley Performance\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eManley Performance engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Manley Performance lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/PsZkOpLGtFM\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eManley Performance Race Master Intake Valves for Ford 4.6L DOHC (4 Valve)\u003c\/h2\u003e\n\u003cp\u003eMaximize airflow and performance in your Ford 4.6L DOHC 4-valve engine with Manley Performance Race Master Intake Valves. These premium valves are designed for high-revving, high-performance applications like the Mustang and Ford GT, ensuring optimal breathing for increased power output.\u003c\/p\u003e\n\n\u003ch3\u003eEngineered for Maximum Airflow\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Strength Stainless Steel:\u003c\/strong\u003e Constructed from durable XH-426 stainless steel, offering superior strength and resistance to the harsh conditions within the combustion chamber.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnhanced Durability:\u003c\/strong\u003e Features chrome stems and hard tips, providing exceptional wear resistance and ensuring a long service life for your valvetrain.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOptimized Airflow Design:\u003c\/strong\u003e Swirl-polished under-head areas and fully machined combustion faces are engineered to promote maximum airflow into the cylinders, boosting performance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRace Master Specification:\u003c\/strong\u003e The straight stem Race Master design is ideal for competition and performance street engines.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVersatile Application:\u003c\/strong\u003e Suitable for various high-performance builds, including those utilizing alcohol fuels where valve durability is critical.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eVehicle Fitment\u003c\/h3\u003e\n\u003cp\u003eThese intake valves are designed to fit the following Ford models equipped with the 4.6L DOHC 4-valve engine:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e1999-2001 Ford Mustang SVT Cobra\u003c\/li\u003e\n  \u003cli\u003e2000 Ford Mustang SVT Cobra R\u003c\/li\u003e\n  \u003cli\u003e2007-2008 Ford Mustang Shelby GT500\u003c\/li\u003e\n  \u003cli\u003e2005-2006 Ford GT\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eUpgrade your Ford's intake system with Manley Performance's precision-engineered valves for a noticeable improvement in engine responsiveness and power.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eFind top-quality Manley Performance engine components at GGCRACING.COM.\u003c\/em\u003e\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;\"\u003e\n\u003ch3 style=\"margin:0 0 8px;\"\u003eVehicle Fitment\u003c\/h3\u003e\n\u003ctable style=\"border-collapse:collapse;width:100%;font-size:0.92em;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background:#f0f0f0;text-align:left;\"\u003e\n\u003cth style=\"padding:6px 10px;\"\u003eYears\u003c\/th\u003e\n\u003cth style=\"padding:6px 10px;\"\u003eMake\u003c\/th\u003e\n\u003cth style=\"padding:6px 10px;\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"padding:6px 10px;\"\u003eTrim\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003e2005-2006\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eFord\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eGT\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003e1999\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eFord\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eMustang\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eSVT Cobra\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003e2000\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eFord\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eMustang\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eSVT Cobra R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003e2001\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eFord\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eMustang\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eSVT Cobra\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003e2007-2008\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eFord\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eMustang\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eShelby GT500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Manley Performance products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/manley-90-99-mazda-miata-1-8l-bp056-dohc-16-exhaust-28mm-stainless-race-master-valves\" style=\"color:#0066cc;text-decoration:none;\"\u003eManley 1.8L BP056 DOHC 16 Exhaust 28mm Stainless Race Master Valves — Fits 1994-1997, 1999\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/manley-90-99-mazda-miata-1-8l-bp056-dohc-16-intake-33mm-stainless-race-master-valves\" style=\"color:#0066cc;text-decoration:none;\"\u003eManley 1.8L BP056 DOHC 16 Intake 33mm Stainless Race Master Valves — Fits 1994-1997, 1999-\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/manley-90-99-mazda-miata-1-8l-bp056-dohc-16-exhaust-29mm-stainless-race-master-valves\" style=\"color:#0066cc;text-decoration:none;\"\u003eManley 1.8L BP056 DOHC 16 Exhaust 29mm Stainless Race Master Valves — Fits 1994-1997, 1999\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/manley-00-03-subaru-wrx-ej20-04-sti-intake-36mm-stainless-race-flo-valves\" style=\"color:#0066cc;text-decoration:none;\"\u003eManley 00-03 Subaru WRX EJ20 \/ 04 STi Intake 36mm Stainless Race Flo Valves\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/manley-00-03-subaru-wrx-ej20-04-sti-exhaust-32mm-stainless-race-master-valves\" style=\"color:#0066cc;text-decoration:none;\"\u003eManley 00-03 Subaru WRX EJ20 \/ 04 STi Exhaust 32mm Stainless Race Master Valves\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Manley Ford 4.6L DOHC (4 Valve) 37mm Race Master Intake Valves \\u2014 Fits 1999-2008 Ford Mustang\/GT\",\"description\":\"Upgrade your Ford 4.6L 4V engine with Manley 37mm Race Master Intake Valves. Engineered for performance and durability. Shop GGCRACING today!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Manley Performance\"},\"mpn\":\"11616-8\",\"url\":\"https:\/\/ggcracing.com\/products\/manley-ford-4-6l-dohc-4-valve-triple-groove-37mm-race-master-intake-valves\",\"offers\":{\"@type\":\"Offer\",\"price\":\"192.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/manley-ford-4-6l-dohc-4-valve-triple-groove-37mm-race-master-intake-valves\",\"sku\":\"MAN11616-8\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Intake\",\"item\":\"https:\/\/ggcracing.com\/collections\/intake\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Manley Performance\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Manley+Performance\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Manley Ford 4.6L DOHC (4 Valve) 37mm Race Master Intake Valves \\u2014 Fits 1999-2008 Ford Mustang\/GT\",\"item\":\"https:\/\/ggcracing.com\/products\/manley-ford-4-6l-dohc-4-valve-triple-groove-37mm-race-master-intake-valves\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Manley Ford 4.6L DOHC (4 Valve) 37mm Race Master Intake Valves \\u2014 Fits 1999-2008  fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Use the fitment table above to confirm.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Manley Performance?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Manley Ford 4.6L DOHC (4 Valve) 37mm Race Master Intake Valves \\u2014 Fits 1999-2008 ?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Cold air intakes typically install in 30-60 minutes with basic hand tools. No tuning required for most plug-and-play kits.\"}}]}\u003c\/script\u003e","brand":"Manley Performance","offers":[{"title":"Default Title","offer_id":41458467668052,"sku":"MAN11616-8","price":192.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/76c86b31efbcf82ff7ca37d75fdd4a17.jpg?v=1721719973","url":"https:\/\/ggcracing.com\/en-co\/products\/manley-ford-4-6l-dohc-4-valve-triple-groove-37mm-race-master-intake-valves","provider":"GGCRACING INC","version":"1.0","type":"link"}