{"product_id":"bourne-honda-k24-complete-cylinder-head","title":"Bourne Honda K24 Complete Pre-Assembled Cylinder Head","description":"\u003ch2 data-path-to-node=\"0\"\u003eBourne HPP Honda K24 Pre-Assembled Cylinder Head\u003c\/h2\u003e\n\u003cp data-path-to-node=\"1\"\u003eElevate your Honda K-Series build with the \u003cb data-path-to-node=\"1\" data-index-in-node=\"43\"\u003eBourne HPP Pre-Assembled Cylinder Head\u003c\/b\u003e, a turnkey solution designed for elite level power and reliability. \u003c\/p\u003e\n\u003cp data-path-to-node=\"2\"\u003eBy integrating advanced thermal management with high-strength valvetrain components, this assembly solves the most common failure points found in high-RPM and high-boost K24 applications.\u003c\/p\u003e\n\u003ch3 data-path-to-node=\"4\"\u003eKey Assembly Features\u003c\/h3\u003e\n\u003ch4 data-path-to-node=\"5\"\u003e1. \u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/bournehpp.com\/products\/honda-k24-cylinder-head-be-cu\" target=\"_blank\" title=\"Bourne HPP K24 Cylinder Head\" style=\"color: rgb(255, 42, 0);\" rel=\"noopener\"\u003eBourne HPP K24 Head with Beryllium Copper (Be-Cu) Seats \u0026amp; Guides\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp data-path-to-node=\"6\"\u003eThe heart of this assembly is the upgraded cylinder head featuring Beryllium Copper seats and guides. This material is the gold standard for racing engines:\u003c\/p\u003e\n\u003cul data-path-to-node=\"7\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,0,0\"\u003e\u003cb data-path-to-node=\"7,0,0\" data-index-in-node=\"0\"\u003eRapid Heat Dissipation:\u003c\/b\u003e Be-Cu pulls heat away from the valves significantly faster than steel, lowering combustion temperatures and preventing detonation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,1,0\"\u003e\u003cb data-path-to-node=\"7,1,0\" data-index-in-node=\"0\"\u003eSuperior Sealing:\u003c\/b\u003e The slightly softer nature of Be-Cu allows for better conformity between the valve face and the seat, resulting in near-zero leak-down.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,2,0\"\u003e\u003cb data-path-to-node=\"7,2,0\" data-index-in-node=\"0\"\u003eExtreme Durability:\u003c\/b\u003e Naturally resistant to galling and thermal distortion, ensuring your valvetrain geometry remains perfect even at high RPMs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-path-to-node=\"8\"\u003e2. Choice of Premium Valve Springs\u003c\/h4\u003e\n\u003cp data-path-to-node=\"9\"\u003eWe offer two industry-leading options to eliminate valve float and ensure the engine breathes accurately at the redline:\u003c\/p\u003e\n\u003cul data-path-to-node=\"10\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,0,0\"\u003e\u003ca href=\"https:\/\/bournehpp.com\/products\/bourne-hpp-inlet-exhaust-valve-spring-set-honda-k20-k24\" target=\"_blank\" title=\"Bourne HPP K20, K24 valve spring set\" rel=\"noopener\"\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003eBourne HPP Valve Springs\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003cb data-path-to-node=\"10,0,0\" data-index-in-node=\"0\"\u003e:\u003c\/b\u003e The in-house precision choice. Manufactured from Silicon Chrome (SiCr) for maximum fatigue resistance and rated for \u003cb data-path-to-node=\"10,0,0\" data-index-in-node=\"147\"\u003e350–700 HP\u003c\/b\u003e in boosted applications. Designed for a straightforward fitment using original platform shims and retainers.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,1,0\"\u003e\u003cb data-path-to-node=\"10,1,0\" data-index-in-node=\"0\"\u003eSupertech K20\/K24 Valve Spring Kit:\u003c\/b\u003e The global industry standard. Perfect for builders who prefer brand consistency with other Supertech components, offering proven high-RPM stability and compatibility with aggressive aftermarket cams.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-path-to-node=\"11\"\u003e3. \u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003ca href=\"https:\/\/bournehpp.com\/products\/bourne-hpp-inlet-exhaust-valve-set-honda-k20-k24\" target=\"_blank\" title=\"Bourne HPP K20 K24 Inlet and Exhaust Valve Set\" style=\"color: rgb(255, 42, 0);\" rel=\"noopener\"\u003eBourne HPP Valve Set\u003c\/a\u003e\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp data-path-to-node=\"12\"\u003eThe valvetrain is completed with our high-grade EN52 steel valves, designed for maximum flow and durability.\u003c\/p\u003e\n\u003cul data-path-to-node=\"13\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"13,0,0\"\u003e\u003cb data-path-to-node=\"13,0,0\" data-index-in-node=\"0\"\u003eSuper Polished Finish:\u003c\/b\u003e Reduces carbon buildup and optimizes airflow.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"13,1,0\"\u003e\u003cb data-path-to-node=\"13,1,0\" data-index-in-node=\"0\"\u003ePulse Plasma Nitriding:\u003c\/b\u003e Creates an ultra-hard surface that reduces friction within the guides and extends the lifespan of the entire valvetrain.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-path-to-node=\"15\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable data-path-to-node=\"16\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eComponent\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"16,1,0,0\"\u003e\u003cb data-path-to-node=\"16,1,0,0\" data-index-in-node=\"0\"\u003eEngine Fitment\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"16,1,1,0\"\u003eHonda K24 \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"16,2,0,0\"\u003e\u003cb data-path-to-node=\"16,2,0,0\" data-index-in-node=\"0\"\u003eSeat\/Guide Material\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"16,2,1,0\"\u003eBeryllium Copper (Be-Cu)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"16,3,0,0\"\u003e\u003cb data-path-to-node=\"16,3,0,0\" data-index-in-node=\"0\"\u003eValve Material\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"16,3,1,0\"\u003eEN52 Steel (Pulse Plasma Nitrided)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"16,4,0,0\"\u003e\u003cb data-path-to-node=\"16,4,0,0\" data-index-in-node=\"0\"\u003eSpring Options\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"16,4,1,0\"\u003e\u003cb data-path-to-node=\"16,4,1,0\" data-index-in-node=\"0\"\u003eBourne HPP\u003c\/b\u003e OR \u003cb data-path-to-node=\"16,4,1,0\" data-index-in-node=\"21\"\u003eSupertech\u003c\/b\u003e \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"16,5,0,0\"\u003e\u003cb data-path-to-node=\"16,5,0,0\" data-index-in-node=\"0\"\u003ePower Rating\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"16,5,1,0\"\u003e200–350 HP (NA) \/ 350–700 HP (Boosted)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"16,6,0,0\"\u003e\u003cb data-path-to-node=\"16,6,0,0\" data-index-in-node=\"0\"\u003eValve Count\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"16,6,1,0\"\u003e8x Inlet, 8x Exhaust\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 data-path-to-node=\"18\"\u003e\n\u003cbr\u003eWhy Choose a Pre-Assembled Head?\u003c\/h3\u003e\n\u003cp data-path-to-node=\"19\"\u003eBuilding a high-performance head requires meticulous measurement of installed heights, guide clearances, and coil bind. When you purchase this pre-assembled unit, you are receiving a \u003cb data-path-to-node=\"19\" data-index-in-node=\"183\"\u003ecompetition-ready\u003c\/b\u003e component. Every valve is lapped, every spring is checked, and every tolerance is verified by Bourne HPP technicians.\u003c\/p\u003e\n\u003cp data-path-to-node=\"20\"\u003e\u003cb data-path-to-node=\"20\" data-index-in-node=\"0\"\u003eBest For:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"21\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"21,0,0\"\u003eHigh-RPM Naturally Aspirated Track Builds\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"21,1,0\"\u003eHigh-Boost Forced Induction (Turbo\/Supercharged)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"21,2,0\"\u003eCompetitive Endurance Racing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cblockquote data-path-to-node=\"22\"\u003e\n\u003cp data-path-to-node=\"22,0\"\u003e\u003cb data-path-to-node=\"22,0\" data-index-in-node=\"0\"\u003eService Note:\u003c\/b\u003e We also offer this specification as a service to your existing cylinder head or on an exchange basis. Please contact us for details on core returns.\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"Bourne HPP","offers":[{"title":"Bourne HPP Valve Spring kit","offer_id":57037762953591,"sku":"BHP-K24-CHC-1","price":3033.0,"currency_code":"GBP","in_stock":false},{"title":"Supertech Valve Spring kit","offer_id":57037762986359,"sku":"BHP-K24-CHC-2","price":3250.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/5592\/4087\/files\/Bourne_Honda_K24_Complete_Cylinder_Head_1.png?v=1776935586","url":"https:\/\/bournehpp.com\/products\/bourne-honda-k24-complete-cylinder-head","provider":"Bourne HPP LTD","version":"1.0","type":"link"}