{"title":"Cylinder Heads \u0026 Components - Cylinder Heads \u0026 Parts - Sporty","description":null,"products":[{"product_id":"compression-release-valves-sold-as-a-pair-overall-length-1-250in-x-thread-length-0-475in-av-v","title":"Compression Release Valves - Sold as a Pair. Overall Length = 1.250in. x Thread Length = 0.475in. - AV\u0026V","description":"\u003cp\u003e* Ideal for stock replacement\u003cbr\u003e\u003cbr\u003e* High temp resistant Knobs\u003cbr\u003e\u003cbr\u003e* Protrusion: 1.250\"\u003cbr\u003e\u003cbr\u003e* Thread Section: 0.500\"\u003cbr\u003e\u003cbr\u003e* Thread: M10 x 1.0mm\u003cbr\u003e\u003cbr\u003e* Sold as a pair.\u003cbr\u003e\u003cbr\u003eTech Tips:-\u003cbr\u003e\u003cbr\u003eOEM Replacement\u003c\/p\u003e","brand":"AV\u0026V","offers":[{"title":"Default Title","offer_id":42957822132318,"sku":"AV-JCR-10D","price":122.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8530\/4926\/files\/AV-JCR-10D.jpg?v=1782806271"},{"product_id":"exhaust-valve-fits-1200cc-sportster-2004-2021-oem-replacement-av-v","title":"Exhaust Valve. Fits 1200cc Sportster 2004-2021. OEM Replacement. - AV\u0026V","description":"\u003cp\u003e* Stock length \u0026amp; head diameter\u003cbr\u003e\u003cbr\u003e* Extreme Duty\u003cbr\u003e\u003cbr\u003e* High Flow\u003cbr\u003e\u003cbr\u003e* one piece forged racing grade stainless steel alloy. \u003cbr\u003e\u003cbr\u003e* Liquid nitriding process creates a valve that is smoother and stronger than O.E.M. \u003cbr\u003e\u003cbr\u003e* Stems are centerless ground for a longer life\u003cbr\u003e\u003cbr\u003e* 45o angle below the lock groove to facilitate the valve seal installation\u003cbr\u003e\u003cbr\u003e* Replaces OEM # 18691-02\u003cbr\u003e\u003cbr\u003eHead Dia = 1.575\"\u003cbr\u003e\u003cbr\u003eOAL = 4.620\"\u003cbr\u003e\u003cbr\u003eStem Dia = 7mm \/ 0.2755\"\u003c\/p\u003e","brand":"AV\u0026V","offers":[{"title":"Default Title","offer_id":42957828128862,"sku":"AV-1576-7TGB","price":56.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8530\/4926\/files\/AV-1576-7TGB.jpg?v=1782806277"},{"product_id":"exhaust-valve-fits-sportster-1957-1985-oem-replacement-av-v","title":"Exhaust Valve. Fits Sportster 1957-1985. OEM Replacement. - AV\u0026V","description":"\u003cp\u003e* Stock length \u0026amp; head diameter - 900 \u0026amp; 1000cc Ironhead Models\u003cbr\u003e\u003cbr\u003e* Extreme Duty\u003cbr\u003e\u003cbr\u003e* High Flow\u003cbr\u003e\u003cbr\u003e* one piece forged racing grade stainless steel alloy. \u003cbr\u003e\u003cbr\u003e* Liquid nitriding process creates a valve that is smoother and stronger than O.E.M. \u003cbr\u003e\u003cbr\u003e* Stems are centerless ground for a longer life\u003cbr\u003e\u003cbr\u003e* 45o angle below the lock groove to facilitate the valve seal installation\u003cbr\u003e\u003cbr\u003e* Replaces OEM # 18033-80\u003cbr\u003e\u003cbr\u003eHead Dia = 1.562\"\u003cbr\u003e\u003cbr\u003eOAL = 3.510\"\u003cbr\u003e\u003cbr\u003eStem Dia = 0.3389\"\u003c\/p\u003e","brand":"AV\u0026V","offers":[{"title":"Default Title","offer_id":42957829046366,"sku":"AV-HD03","price":56.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8530\/4926\/files\/AV-HD03.jpg?v=1782806278"},{"product_id":"exhaust-valve-fits-883cc-sportster-1986-2003-oem-replacement-av-v","title":"Exhaust Valve. Fits 883cc Sportster 1986-2003. OEM Replacement. - AV\u0026V","description":"\u003cp\u003e* Stock length \u0026amp; head diameter\u003cbr\u003e\u003cbr\u003e* Extreme Duty\u003cbr\u003e\u003cbr\u003e* High Flow\u003cbr\u003e\u003cbr\u003e* one piece forged racing grade stainless steel alloy. \u003cbr\u003e\u003cbr\u003e* Liquid nitriding process creates a valve that is smoother and stronger than O.E.M. \u003cbr\u003e\u003cbr\u003e* Stems are centerless ground for a longer life\u003cbr\u003e\u003cbr\u003e* 45o angle below the lock groove to facilitate the valve seal installation\u003cbr\u003e\u003cbr\u003e* Replaces OEM # 18030-86\u003cbr\u003e\u003cbr\u003eHead Dia = 1.355\"\u003cbr\u003e\u003cbr\u003eOAL = 4.635\"\u003cbr\u003e\u003cbr\u003eStem Dia = 0.3106\"\u003c\/p\u003e","brand":"AV\u0026V","offers":[{"title":"Default Title","offer_id":42957829931102,"sku":"AV-1355","price":56.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8530\/4926\/files\/AV-1355.jpg?v=1782806279"},{"product_id":"exhaust-valve-fits-1200cc-sportster-1988-2003-oem-replacement-av-v","title":"Exhaust Valve. Fits 1200cc Sportster 1988-2003. OEM Replacement. - AV\u0026V","description":"\u003cp\u003e* Stock length \u0026amp; head diameter\u003cbr\u003e\u003cbr\u003e* Extreme Duty\u003cbr\u003e\u003cbr\u003e* High Flow\u003cbr\u003e\u003cbr\u003e* one piece forged racing grade stainless steel alloy. \u003cbr\u003e\u003cbr\u003e* Liquid nitriding process creates a valve that is smoother and stronger than O.E.M. \u003cbr\u003e\u003cbr\u003e* Stems are centerless ground for a longer life\u003cbr\u003e\u003cbr\u003e* 45o angle below the lock groove to facilitate the valve seal installation\u003cbr\u003e\u003cbr\u003e* Replaces OEM # 18024-87\u003cbr\u003e\u003cbr\u003eHead Dia = 1.485\"\u003cbr\u003e\u003cbr\u003eOAL = 4.560\"\u003cbr\u003e\u003cbr\u003eStem Dia = 0.3106\"\u003c\/p\u003e","brand":"AV\u0026V","offers":[{"title":"Default Title","offer_id":42957831012446,"sku":"AV-1485","price":56.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8530\/4926\/files\/AV-1485.jpg?v=1782806280"},{"product_id":"exhaust-valve-guide-fits-sportster-1957-early-1983-standard-outside-diameter-guide-av-v","title":"Exhaust Valve Guide. Fits Sportster 1957-Early 1983. Standard Outside Diameter Guide. - AV\u0026V","description":"\u003cp\u003e* Designed for Harley-Davidson heads\u003cbr\u003e\u003cbr\u003e* Use with OEM style valve seals \u003cbr\u003e\u003cbr\u003e* Cast Iron\u003cbr\u003e\u003cbr\u003e* High temp viton o-ring seal\u003cbr\u003e\u003cbr\u003e* Smooth lead-in\u003cbr\u003e\u003cbr\u003e* CNC machined\u003cbr\u003e\u003cbr\u003e* Guide ID unfinished - Requires honing\u003cbr\u003e\u003cbr\u003e* OD = .5645\" Std size\u003cbr\u003e\u003cbr\u003e* ID = .339\"\u003cbr\u003e\u003cbr\u003e* Replaces OEM # 18170-57B\u003c\/p\u003e","brand":"AV\u0026V","offers":[{"title":"Default Title","offer_id":42957837828190,"sku":"AV-VG5200","price":20.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8530\/4926\/files\/AV-VG5200.jpg?v=1782806286"},{"product_id":"oversize-intake-valve-guide-fits-sportster-1957-early-1983-001in-outside-diameter-av-v","title":"Oversize Intake Valve Guide. Fits Sportster 1957-Early 1983. +.001in. Outside Diameter. - AV\u0026V","description":"\u003cp\u003e* Designed for Harley-Davidson heads\u003cbr\u003e\u003cbr\u003e* Use with OEM style valve seals \u003cbr\u003e\u003cbr\u003e* Cast Iron\u003cbr\u003e\u003cbr\u003e* High temp viton o-ring seal\u003cbr\u003e\u003cbr\u003e* Smooth lead-in\u003cbr\u003e\u003cbr\u003e* CNC machined\u003cbr\u003e\u003cbr\u003e* Guide ID unfinished - Requires honing\u003cbr\u003e\u003cbr\u003e* OD = .5655\" Std size\u003cbr\u003e\u003cbr\u003e* ID = .309\"\u003cbr\u003e\u003cbr\u003e* Replaces OEM # 18179-57C\u003c\/p\u003e","brand":"AV\u0026V","offers":[{"title":"Default Title","offer_id":42957845233758,"sku":"AV-VG5101","price":11.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8530\/4926\/files\/AV-VG5101.jpg?v=1782806294"},{"product_id":"intake-valve-guide-fits-sportster-1957-early-1983-standard-outside-diameter-guide-av-v","title":"Intake Valve Guide. Fits Sportster 1957-Early 1983. Standard Outside Diameter Guide. - AV\u0026V","description":"\u003cp\u003e* Designed for Harley-Davidson heads\u003cbr\u003e\u003cbr\u003e* Use with OEM style valve seals \u003cbr\u003e\u003cbr\u003e* Cast Iron\u003cbr\u003e\u003cbr\u003e* High temp viton o-ring seal\u003cbr\u003e\u003cbr\u003e* Smooth lead-in\u003cbr\u003e\u003cbr\u003e* CNC machined\u003cbr\u003e\u003cbr\u003e* Guide ID unfinished - Requires honing\u003cbr\u003e\u003cbr\u003e* OD = .5645\" Std size\u003cbr\u003e\u003cbr\u003e* ID = .309\"\u003cbr\u003e\u003cbr\u003e* Replaces OEM # 18176-57C\u003c\/p\u003e","brand":"AV\u0026V","offers":[{"title":"Default Title","offer_id":42957846085726,"sku":"AV-VG5100","price":20.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8530\/4926\/files\/AV-VG5100.jpg?v=1782806294"},{"product_id":"oversize-intake-valve-fits-1200cc-sportster-2004-2021-high-flow-040in-oversize-valve-av-v","title":"Oversize Intake Valve. Fits 1200cc Sportster 2004-2021. High Flow .040in. Oversize Valve. - AV\u0026V","description":"\u003cp\u003e* High Performance Oversize valve\u003cbr\u003e\u003cbr\u003e* Extreme Duty\u003cbr\u003e\u003cbr\u003e* High Flow\u003cbr\u003e\u003cbr\u003e* one piece forged racing grade stainless steel alloy. \u003cbr\u003e\u003cbr\u003e* Liquid nitriding process creates a valve that is smoother and stronger than O.E.M. \u003cbr\u003e\u003cbr\u003e* Stems are centerless ground for a longer life\u003cbr\u003e\u003cbr\u003e* 45o angle below the lock groove to facilitate the valve seal installation\u003cbr\u003e\u003cbr\u003eHead Dia = 1.851\"\u003cbr\u003e\u003cbr\u003eOAL = 4.520\"\u003cbr\u003e\u003cbr\u003eStem Dia = 7mm \/ 0.2757\"\u003c\/p\u003e","brand":"AV\u0026V","offers":[{"title":"Default Title","offer_id":42957857030238,"sku":"AV-1851-7TGB","price":56.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8530\/4926\/files\/AV-1851-7TGB.jpg?v=1782806304"},{"product_id":"intake-valve-fits-1200cc-sportster-2004-2021-oem-replacement-av-v","title":"Intake Valve. Fits 1200cc Sportster 2004-2021. OEM Replacement. - AV\u0026V","description":"\u003cp\u003e* Stock length \u0026amp; head diameter\u003cbr\u003e\u003cbr\u003e* Extreme Duty\u003cbr\u003e\u003cbr\u003e* High Flow\u003cbr\u003e\u003cbr\u003e* one piece forged racing grade stainless steel alloy. \u003cbr\u003e\u003cbr\u003e* Liquid nitriding process creates a valve that is smoother and stronger than O.E.M. \u003cbr\u003e\u003cbr\u003e* Stems are centerless ground for a longer life\u003cbr\u003e\u003cbr\u003e* 45o angle below the lock groove to facilitate the valve seal installation\u003cbr\u003e\u003cbr\u003e* Replaces OEM # 18690-02\u003cbr\u003e\u003cbr\u003eHead Dia = 1.810\"\u003cbr\u003e\u003cbr\u003eOAL = 4.480\"\u003cbr\u003e\u003cbr\u003eStem Dia = 7mm \/ 0.2757\"\u003c\/p\u003e","brand":"AV\u0026V","offers":[{"title":"Default Title","offer_id":42957857882206,"sku":"AV-1811-7TGB","price":56.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8530\/4926\/files\/AV-1811-7TGB.jpg?v=1782806305"},{"product_id":"intake-valve-fits-sportster-1970-1985-oem-replacement-av-v","title":"Intake Valve. Fits Sportster 1970-1985. OEM Replacement. - AV\u0026V","description":"\u003cp\u003e* Stock length \u0026amp; head diameter - 1000cc Ironhead Models\u003cbr\u003e\u003cbr\u003e* Extreme Duty\u003cbr\u003e\u003cbr\u003e* High Flow\u003cbr\u003e\u003cbr\u003e* one piece forged racing grade stainless steel alloy. \u003cbr\u003e\u003cbr\u003e* Liquid nitriding process creates a valve that is smoother and stronger than O.E.M. \u003cbr\u003e\u003cbr\u003e* Stems are centerless ground for a longer life\u003cbr\u003e\u003cbr\u003e* 45o angle below the lock groove to facilitate the valve seal installation\u003cbr\u003e\u003cbr\u003e* Replaces OEM # 18027-80\u003cbr\u003e\u003cbr\u003eHead Dia = 1.940\"\u003cbr\u003e\u003cbr\u003eOAL = 3.600\"\u003cbr\u003e\u003cbr\u003eStem Dia = 0.3109\"\u003c\/p\u003e","brand":"AV\u0026V","offers":[{"title":"Default Title","offer_id":42957858799710,"sku":"AV-HD05","price":56.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8530\/4926\/files\/AV-HD05.jpg?v=1782806307"},{"product_id":"intake-valve-fits-883cc-sportster-1986-2003-oem-replacement-av-v","title":"Intake Valve. Fits 883cc Sportster 1986-2003. OEM Replacement. - AV\u0026V","description":"\u003cp\u003e* Stock length \u0026amp; head diameter\u003cbr\u003e\u003cbr\u003e* Extreme Duty\u003cbr\u003e\u003cbr\u003e* High Flow\u003cbr\u003e\u003cbr\u003e* one piece forged racing grade stainless steel alloy. \u003cbr\u003e\u003cbr\u003e* Liquid nitriding process creates a valve that is smoother and stronger than O.E.M. \u003cbr\u003e\u003cbr\u003e* Stems are centerless ground for a longer life\u003cbr\u003e\u003cbr\u003e* 45o angle below the lock groove to facilitate the valve seal installation\u003cbr\u003e\u003cbr\u003e* Replaces OEM # 18031-86\u003cbr\u003e\u003cbr\u003eHead Dia = 1.590\"\u003cbr\u003e\u003cbr\u003eOAL = 4.550\"\u003cbr\u003e\u003cbr\u003eStem Dia = 5\/16\" \/ 0.3108\"\u003c\/p\u003e","brand":"AV\u0026V","offers":[{"title":"Default Title","offer_id":42957859586142,"sku":"AV-1590","price":56.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8530\/4926\/files\/AV-1590.jpg?v=1782806307"},{"product_id":"intake-valve-fits-1200cc-sportster-1988-2003-1200cc-oem-replacement-av-v","title":"Intake Valve. Fits 1200cc Sportster 1988-2003 1200cc. OEM Replacement. - AV\u0026V","description":"\u003cp\u003e* Stock length \u0026amp; head diameter\u003cbr\u003e\u003cbr\u003e* Extreme Duty\u003cbr\u003e\u003cbr\u003e* High Flow\u003cbr\u003e\u003cbr\u003e* one piece forged racing grade stainless steel alloy. \u003cbr\u003e\u003cbr\u003e* Liquid nitriding process creates a valve that is smoother and stronger than O.E.M. \u003cbr\u003e\u003cbr\u003e* Stems are centerless ground for a longer life\u003cbr\u003e\u003cbr\u003e* 45o angle below the lock groove to facilitate the valve seal installation\u003cbr\u003e\u003cbr\u003e* Replaces OEM # 18023-87\u003cbr\u003e\u003cbr\u003eHead Dia = 1.720\"\u003cbr\u003e\u003cbr\u003eOAL = 4.480\"\u003cbr\u003e\u003cbr\u003eStem Dia = 0.3108\"\u003c\/p\u003e","brand":"AV\u0026V","offers":[{"title":"Default Title","offer_id":42957860470878,"sku":"AV-1720B","price":44.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8530\/4926\/files\/AV-1720B.jpg?v=1782806308"}],"url":"https:\/\/ironhorsecustoms.com.au\/collections\/cylinder-heads-components-cylinder-heads-parts-sporty.oembed","provider":"Iron Horse Customs","version":"1.0","type":"link"}