{"product_id":"1993-1999-yamaha-kodial-400-yfm400-port-polished-bare-cylinder-head-with-kibblewhite-valves-spring-kit","title":"1993 - 1999 YAMAHA KODIAK 400 YFM400 PORT \u0026 POLISHED BARE CYLINDER HEAD with  KIBBLEWHITE VALVES \u0026 SPRING KIT","description":"\u003ch2 style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0770\/0741\/files\/zoom_zoom_logo_pic_trans_BB_2_68b31b3d-c7f7-45ca-ac37-b3386ebe5b22.jpg?v=1773948542\" alt=\"\" width=\"329\" height=\"111\"\u003e\u003c\/h2\u003e\n\u003ch2 style=\"text-align: center;\"\u003eNEW STOCK CYLINDER HEAD KIT\u003c\/h2\u003e\n\u003ch3 style=\"text-align: center;\"\u003eREBUILD YOUR MACHINE WITH OUR NEW HIGH QUALITY OEM REPLACMENT CYLINDER HEAD KIT AND GET YOUR MACHINE UP AND RUNNING AGAIN!\u003c\/h3\u003e\n\u003ch2 class=\"\"\u003eThe Smart Engine Builder's Secret: Maximizing Power Without the OEM Price Tag\u003c\/h2\u003e\n\u003cp\u003e\u003cspan class=\"\"\u003eWhen tackling a dirt bike or ATV engine rebuild,\u003c\/span\u003e\u003cspan class=\"\"\u003e replacing a damaged cylinder head can quickly eat up the project budget.\u003c\/span\u003e\u003cspan class=\"\"\u003e However,\u003c\/span\u003e\u003cspan class=\"\"\u003e turning to a high-quality aftermarket cylinder head is one of the most cost-efficient moves you can make.\u003c\/span\u003e\u003cspan class=\"\"\u003e It delivers the same reliable horsepower and torque as a factory original without the massive markup.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"\"\u003eHere is exactly why aftermarket heads offer unbeatable value for your powersports machines:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb class=\"\"\u003eZero \"Brand Tax\":\u003c\/b\u003e\u003cspan class=\"\"\u003e You are paying purely for the aluminum and the machining,\u003c\/span\u003e\u003cspan class=\"\"\u003e not the Yamaha,\u003c\/span\u003e\u003cspan class=\"\"\u003e Honda,\u003c\/span\u003e\u003cspan class=\"\"\u003e or Polaris logo stamped on the box.\u003c\/span\u003e\u003cspan class=\"\"\u003e Dealership markup on factory parts drastically inflates the price.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb class=\"\"\u003eLower R\u0026amp;D Costs:\u003c\/b\u003e\u003cspan class=\"\"\u003e Aftermarket manufacturers reverse-engineer the original,\u003c\/span\u003e\u003cspan class=\"\"\u003e proven OEM designs.\u003c\/span\u003e\u003cspan class=\"\"\u003e Because they do not have to spend millions developing the engine architecture from scratch,\u003c\/span\u003e\u003cspan class=\"\"\u003e they pass those massive savings directly to the builder.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb class=\"\"\u003eAdvanced CNC Machining:\u003c\/b\u003e\u003cspan class=\"\"\u003e Modern manufacturing technology has leveled the playing field.\u003c\/span\u003e\u003cspan class=\"\"\u003e Independent factories now use the exact same high-precision 3D scanning,\u003c\/span\u003e\u003cspan class=\"\"\u003e casting,\u003c\/span\u003e\u003cspan class=\"\"\u003e and CNC porting equipment as the major brands,\u003c\/span\u003e\u003cspan class=\"\"\u003e ensuring an identical fit and airflow rate.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb class=\"\"\u003eDirect Bolt-On Performance:\u003c\/b\u003e\u003cspan class=\"\"\u003e These heads are cast to exact factory specifications.\u003c\/span\u003e\u003cspan class=\"\"\u003e Valve seats,\u003c\/span\u003e\u003cspan class=\"\"\u003e cam journals,\u003c\/span\u003e\u003cspan class=\"\"\u003e and combustion chambers match the original geometry,\u003c\/span\u003e\u003cspan class=\"\"\u003e meaning your compression ratio and fuel burn remain perfectly optimized for maximum power.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb class=\"\"\u003eHigh-Volume Specialization:\u003c\/b\u003e\u003cspan class=\"\"\u003e Many aftermarket suppliers specialize entirely in casting and machining engine components.\u003c\/span\u003e\u003cspan class=\"\"\u003e This laser focus and high-volume production drastically lower the cost per unit compared to an OEM that has to manage thousands of different vehicle parts.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan class=\"\"\u003eWhether you are tearing down a top end for the track or getting a quad back on the trail,\u003c\/span\u003e\u003cspan class=\"\"\u003e an aftermarket cylinder head gives you the exact same throttle response and reliability.\u003c\/span\u003e\u003cspan class=\"\"\u003e It keeps the rebuild under budget while ensuring the engine performs exactly like it did on the showroom floor.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 id=\"p-rc_8bbdc008e00ecdcf-44\"\u003e\n\u003cspan class=\"citation-420\"\u003eKibblewhite Precision Machining (KPMI)\u003c\/span\u003e\u003cspan class=\"citation-420 citation-end-420\"\u003e\u003cspan\u003e \u003c\/span\u003ehigh-performance lightweight racing valve spring kits are engineered to withstand the punishing environments and high-RPM demands of race-modified power plants.\u003csup class=\"superscript\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"citation-419 citation-end-419\"\u003eDesigned using a strict \"unified system\" approach, these premium components out-perform and outlast factory OEM valvetrains, making them an essential upgrade for high-stress applications running aggressive aftermarket camshafts.\u003csup class=\"superscript\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003ch3 id=\"p-rc_8bbdc008e00ecdcf-45\"\u003e\u003cspan class=\"citation-418 citation-end-418\"\u003eKey Features \u0026amp; Engineering:\u003csup class=\"superscript\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ch3 id=\"p-rc_8bbdc008e00ecdcf-46\"\u003e\n\u003cspan class=\"citation-417\"\u003e\u003c\/span\u003e\u003cspan class=\"citation-417\"\u003eAdvanced Metallurgy:\u003c\/span\u003e\u003cspan class=\"citation-417 citation-end-417\"\u003e\u003cspan\u003e \u003c\/span\u003eSprings are progressively wound from high-strength Chrome Silicon (CrSi) or ovate wire, heat-treated, and shot-peened to deliver incredible resistance to fatigue and valve float.\u003csup class=\"superscript\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3 id=\"p-rc_8bbdc008e00ecdcf-47\"\u003eMass-Optimized Retainers: Equipped with lightweight, FEA-designed (Finite Element Analysis) titanium or hardened heat-treated (H.T.)\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"citation-416 citation-end-416\"\u003esteel retainers that minimize top-end valvetrain weight without sacrificing structural integrity.\u003csup class=\"superscript\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3 id=\"p-rc_8bbdc008e00ecdcf-48\"\u003e\n\u003cspan class=\"citation-415\"\u003e\u003c\/span\u003e\u003cspan class=\"citation-415\"\u003eApplication-Specific Harmonics:\u003c\/span\u003e\u003cspan class=\"citation-415 citation-end-415\"\u003e\u003cspan\u003e \u003c\/span\u003eEvery kit is precisely engineered for its specific engine platform, balancing critical parameters like cam profiles, harmonic frequencies, mass, wire stress, and exact seat\/open pressures.\u003csup class=\"superscript\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3 id=\"p-rc_8bbdc008e00ecdcf-49\"\u003e\n\u003cspan class=\"citation-414\"\u003e\u003c\/span\u003e\u003cspan class=\"citation-414\"\u003eComplete Drop-In Security:\u003c\/span\u003e\u003cspan class=\"citation-414 citation-end-414\"\u003e\u003cspan\u003e \u003c\/span\u003eEach kit provides a matched set of high-strength base washers, springs, and premium retainers—offering total valvetrain control, added clearance, and exceptional longevity under maximum lift conditions.\u003csup class=\"superscript\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"citation-414 citation-end-414\"\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp id=\"p-rc_8bbdc008e00ecdcf-50\"\u003e\u003cspan class=\"citation-413\"\u003e\u003c\/span\u003e\u003cspan class=\"citation-413\"\u003eThe Verdict:\u003c\/span\u003e\u003cspan class=\"citation-413 citation-end-413\"\u003e\u003cspan\u003e \u003c\/span\u003eWhether you are building a high-revving motocross engine, upgrading an aggressive trail quad, or pushing extreme boost pressures, KPMI racing springs deliver the precise valvetrain control needed to protect your engine from catastrophic damage at peak RPM.\u003csup class=\"superscript\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 align=\"center\" class=\"MsoNormal\"\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"citation-420\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003ch2 align=\"center\" class=\"MsoNormal\"\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e\u003cem\u003e\u003cb\u003eWORKS BEST with STAGE 1 or 2 CAMSHAFT\u003c\/b\u003e\u003c\/em\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003ch2\u003e\u003cb\u003e\u003cu\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/u\u003e\u003c\/b\u003e\u003c\/h2\u003e\n\u003ch3 style=\"text-align: center;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eKIT INCLUDES:\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3 style=\"text-align: center;\"\u003eAFTERMARKET PORT \u0026amp; POLISHED CYLINDER HEAD\u003c\/h3\u003e\n\u003ch3 style=\"text-align: center;\"\u003eAFTERMARKET HEAD GASKET KIT (O-Rings, Retainers \u0026amp; bolts)\u003c\/h3\u003e\n\u003ch3 style=\"text-align: center;\"\u003eNGK D8EA SPARK PLUG\u003c\/h3\u003e\n\u003ch3 style=\"text-align: center;\"\u003eKIBBLEWHITE SPRING KIT 80-8000Racing Spring Kit (Titanium, 0.475\" Lift)\u003c\/h3\u003e\n\u003ch3 style=\"text-align: center;\"\u003eKIBBLEWHITE BLACK DIAMOND EXHAUST VALVE (34mm head diameter)\u003c\/h3\u003e\n\u003ch3 style=\"text-align: center;\"\u003eKIBBLE WHITE BLACK DIAMOND INTAKE VALVE (40mm head diameter)\u003c\/h3\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/h3\u003e","brand":"Zoom Zoom Parts","offers":[{"title":"Default Title","offer_id":50245204967647,"sku":"WARRIOR 350 PORT \u0026 POLISHED CYLINDER HEAD KIT WITH KIBBLEWHITE 80-8000 KIT","price":339.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0770\/0741\/files\/KODIAK_400_HEAD.jpg?v=1781891182","url":"https:\/\/zoomzoomparts.com\/products\/1993-1999-yamaha-kodial-400-yfm400-port-polished-bare-cylinder-head-with-kibblewhite-valves-spring-kit","provider":"Zoom Zoom Parts","version":"1.0","type":"link"}