{"product_id":"kibblewhite-racing-valve-spring-kit-450-lift","title":"Kibblewhite Racing Valve Spring Kit .450\" Lift","description":"\u003cp\u003eUpgrade your engine's valvetrain with the Kibblewhite Lightweight Racing Valve Spring Kit, designed for high-performance applications. This kit provides superior valvetrain control, especially in boosted or turbocharged engines, ensuring reliability and performance at high RPMs.\u003c\/p\u003e\n\n\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cp\u003eThe Kibblewhite Racing Valve Spring Kit (KW304021) is engineered to enhance your engine's performance and reliability. This kit features increased spring rates and high lift compatibility compared to stock springs, making it ideal for high-performance camshafts. The CNC-machined titanium or H.T. (Heat Treated) Steel retainers, combined with Cr-Si (Chromium Silicon) alloy dual springs, offer exceptional valvetrain control at elevated RPMs. Whether you're running a boosted or turbocharged setup, this valve spring kit ensures optimal valve closure and prevents valve float, maximizing power output and engine longevity. Proudly made in the USA, the Kibblewhite valve spring kit delivers consistent performance and durability you can trust. Specifically designed for both exhaust and intake valves.\u003c\/p\u003e\n\n\u003ch2\u003eFeatures \u0026amp; highlights\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eOptimized for boosted and turbocharged engines, providing reliable performance under increased pressure.\u003c\/li\u003e\n  \u003cli\u003eIncreased spring rates improve valve control and prevent valve float at high RPMs.\u003c\/li\u003e\n  \u003cli\u003eHigh lift compatibility allows for the use of aggressive, high-performance camshafts.\u003c\/li\u003e\n  \u003cli\u003eCNC-machined titanium or H.T. Steel retainers offer exceptional strength and reduced weight.\u003c\/li\u003e\n  \u003cli\u003eCr-Si (Chromium Silicon) alloy dual springs ensure consistent performance and durability.\u003c\/li\u003e\n  \u003cli\u003eMade in the USA, guaranteeing high-quality materials and manufacturing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eBrand: Kibblewhite\u003c\/li\u003e\n  \u003cli\u003ePart Number: KW304021 \/ 30-4021\u003c\/li\u003e\n  \u003cli\u003eApplication: Exhaust, Intake\u003c\/li\u003e\n  \u003cli\u003eCollar Material: Titanium\u003c\/li\u003e\n  \u003cli\u003eMaterial: Chromium Silicon Alloy\u003c\/li\u003e\n  \u003cli\u003eProduct Name: Spring Kit\u003c\/li\u003e\n  \u003cli\u003eSpring Lift: 0.450\"\u003c\/li\u003e\n  \u003cli\u003eSpring Open Pressure: 202 lb\u003c\/li\u003e\n  \u003cli\u003eSpring Seat Pressure: 66 lb\u003c\/li\u003e\n  \u003cli\u003eType: Valve\u003c\/li\u003e\n  \u003cli\u003eUnits: Kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eImportant to know\u003c\/h2\u003e\n\u003cp\u003eThis kit is a direct replacement for your stock valve springs. Professional installation is recommended to ensure proper setup and performance.\u003c\/p\u003e","brand":"Kibblewhite","offers":[{"title":"Default Title","offer_id":53654910009674,"sku":"KW304021","price":1307.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0971\/0016\/9546\/files\/21ae3cf47c0f2210f59277036b777809.webp?v=1766597508","url":"https:\/\/partsdenmark.se\/products\/kibblewhite-racing-valve-spring-kit-450-lift","provider":"Parts Denmark","version":"1.0","type":"link"}