{"product_id":"kawasaki-h1-500ss-mach-iii-machined-billet-cylinder-head","title":"Kawasaki H1 500SS Mach III Machined Billet Cylinder Head","description":"\u003ch2\u003eItem Specifics\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCondition\u003c\/td\u003e\n\u003ctd\u003eNew\u003c\/td\u003e\n\u003ctd\u003eMachine Type\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eItems Included\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003ctd\u003eManufacturer Part #\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Model\u003c\/td\u003e\n\u003ctd\u003eH1\u003c\/td\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuperseded Part #\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003ctd\u003eVintage Part\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine Type\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eKawasaki\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eCylinder Head\u003c\/td\u003e\n\u003ctd\u003eInterchange Part #\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Warranty\u003c\/td\u003e\n\u003ctd\u003e3 Months\u003c\/td\u003e\n\u003ctd\u003eOE\/OEM Part #\u003c\/td\u003e\n\u003ctd\u003eno, N\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry\/Region of Manufacture\u003c\/td\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003ePolished\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePerformance Part\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cul\u003e\n\u003cli\u003eKawasaki 500SS H1 Cylinder Heads New Billet\u003c\/li\u003e\n\u003cli\u003eLong-established internal combustion engine shop Mach (H1) machined cylinder heads Inoue Boring Kawagoe City Japan NEW!!\u003c\/li\u003e\n\u003cli\u003eIn the world situation where engine production will eventually cease, we want to leave engines for the future of the 22nd century.\u003c\/li\u003e\n\u003cli\u003eExcellent durability and heat dissipation, and high-efficiency combustion chamber shape proven in races\u003c\/li\u003e\n\u003cli\u003eBeautiful high performance that only machined cylinder heads can provide, and an appearance that enhances the quality of Mach H1.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy the H1 Cylinder Head Needed a Solution\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThe Kawasaki H1 500SS Mach III is a legendary 2-stroke triple, but original cylinder heads suffer from heat dissipation limitations and age-related degradation.\u003c\/li\u003e\n\u003cli\u003eWorn or cracked original heads compromise compression, combustion efficiency, and overall engine performance.\u003c\/li\u003e\n\u003cli\u003eA precision machined billet replacement restores and exceeds original performance standards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eMachined Billet Cylinder Head Design\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-efficiency combustion chamber shape\u003c\/strong\u003e proven in race applications — optimized for the H1 500SS engine.\u003c\/li\u003e\n\u003cli\u003ePrecision CNC machining ensures perfect sealing surface flatness and consistent port geometry.\u003c\/li\u003e\n\u003cli\u003ePolished aluminum finish enhances both heat dissipation and visual quality.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Choose iNOUE BORING?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLong-established internal combustion engine specialist based in Kawagoe City, Japan.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-month manufacturer warranty\u003c\/strong\u003e on all machined components.\u003c\/li\u003e\n\u003cli\u003eCommitted to preserving vintage motorcycle engines for future generations.\u003c\/li\u003e\n\u003cli\u003eCustom sizes available — \u003ca href=\"#shopify-section-template--21459829227733__rich_text_qzpdzx\"\u003ePlease fill out the form below\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eYear\u003c\/td\u003e\n\u003ctd\u003eMake\u003c\/td\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eSubmodel\u003c\/td\u003e\n\u003ctd\u003eNotes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1969\u003c\/td\u003e\n\u003ctd\u003eKawasaki\u003c\/td\u003e\n\u003ctd\u003eH1\u003c\/td\u003e\n\u003ctd\u003eMach Ⅲ\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"faq-section\"\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003e\u003cstrong\u003e▶ What is a machined billet cylinder head?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eA machined billet cylinder head is precision CNC-machined from a solid block of aluminum, rather than cast. This results in superior dimensional accuracy, better heat dissipation, and a higher-efficiency combustion chamber shape compared to original cast heads.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003e\u003cstrong\u003e▶ Which Kawasaki H1 models is this compatible with?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eThis cylinder head is compatible with the Kawasaki H1 500SS Mach III (1969). Please contact us if you need compatibility information for other years or variants.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003e\u003cstrong\u003e▶ What are the advantages over the original cylinder head?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eThe machined billet cylinder head offers excellent durability, superior heat dissipation, and a high-efficiency combustion chamber shape proven in races — performance that only precision machining can provide.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003e\u003cstrong\u003e▶ Can I order a custom specification?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eYes. If you require a different specification or size, we can manufacture to order. \u003ca href=\"#shopify-section-template--21459829227733__rich_text_qzpdzx\"\u003ePlease fill out the form below.\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003e\u003cstrong\u003e▶ What warranty is included?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eAll machined components from iNOUE BORING include a 3-month manufacturer warranty.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eLearn More About iNOUE BORING Technology\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/icbm%E2%84%A2-blog\/what-is-icbm%E2%84%A2-technology-a-new-future-for-vintage-engines\"\u003eWhat Is ICBM™ Technology? A New Future for Vintage Engines\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/news\/h2-cylinders-icbm%C2%AE\"\u003eH2 Cylinders ICBM® — Detailed Specifications\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/news\/why-we-built-a-billet-h2-cylinder-and-what-it-means-for-icbm\"\u003eWhy We Built a Billet H2 Cylinder\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/kawasaki-h2-750ss-machined-billet-cylinder-aluminized-cylinder-liner-japan-new\"\u003eKawasaki H2 750SS Machined Billet Cylinder — View Product\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is a machined billet cylinder head?\",\n      \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"A machined billet cylinder head is precision CNC-machined from a solid block of aluminum, rather than cast. This results in superior dimensional accuracy, better heat dissipation, and a higher-efficiency combustion chamber shape compared to original cast heads.\" }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Which Kawasaki H1 models is this compatible with?\",\n      \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"This cylinder head is compatible with the Kawasaki H1 500SS Mach III (1969). Please contact us if you need compatibility information for other years or variants.\" }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What are the advantages over the original cylinder head?\",\n      \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"The machined billet cylinder head offers excellent durability, superior heat dissipation, and a high-efficiency combustion chamber shape proven in races — performance that only precision machining can provide.\" }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I order a custom specification?\",\n      \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"Yes. If you require a different specification or size, we can manufacture to order. Please feel free to contact us at https:\/\/inoueboring.com\/pages\/quote\" }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What warranty is included?\",\n      \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"All machined components from iNOUE BORING include a 3-month manufacturer warranty.\" }\n    }\n  ]\n}\n\u003c\/script\u003e\u003c\/p\u003e","brand":"iNOUE BORING","offers":[{"title":"Default Title","offer_id":48676189503701,"sku":"","price":1699.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0701\/2502\/7541\/files\/Kawasaki_H1_500SS_Mach_III_machined_billet_cylinder_head_iNOUE_BORING_Japan.jpg?v=1777221889","url":"https:\/\/inoueboring.com\/products\/kawasaki-h1-500ss-mach-iii-machined-billet-cylinder-head","provider":"iNOUE BORING","version":"1.0","type":"link"}