{"product_id":"kolasina-37-485-carburetor-rebuild-kit-for-holley-4-barrel-4150-series-600-850-cfm","title":"Kolasina 37-485 Carburetor Rebuild Kit for Holley 4-Barrel 4150 Series (600-850 CFM)","description":"\u003cdiv\u003e\n\u003cp\u003eUpgrade your Holley 4-barrel with the Kolasina 37-485 Carburetor Rebuild Kit, designed for Holley 4150 and 4150C carburetors in the 600 to 850 CFM range. This 100% new kit blends durable materials with precise components to help you refresh your carburetor and restore confident performance. While not a guarantee of results, many users report smoother idle, steadier fuel delivery, and enhanced overall driveability after a rebuild with high-quality parts like these.\u003c\/p\u003e\n\u003ch2\u003eWhat’s inside a complete rebuild\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eGaskets and O-rings for solid seals\u003c\/li\u003e\n  \u003cli\u003ePump diaphragm(s) for reliable fuel action\u003c\/li\u003e\n  \u003cli\u003eNeedle and seat assemblies for accurate metering\u003c\/li\u003e\n  \u003cli\u003e125-65 6-5'Hg power valve(s) tailored to typical Holley settings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe kit covers a wide range of Holley 4150 family models, including 600 CFM, 650 CFM, 700 CFM, 750 CFM, 800 CFM, and 850 CFM configurations. Each part is selected to withstand the engine’s rhythm and heat, helping you rebuild with confidence and fewer surprises.\u003c\/p\u003e\n\u003ch2\u003eDurability, precision, and potential performance gains\u003c\/h2\u003e\n\u003cp\u003eDurable materials and precise fit translate to dependable rebuilds that resist leaks and wear. Expect more consistent fuel delivery during transitions, a steadier idle, and improved throttle response when the carburetor is rebuilt with components designed for longevity.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eComprehensive components designed for a complete rebuild\u003c\/li\u003e\n  \u003cli\u003eQuality materials built to endure engine operation and vibration\u003c\/li\u003e\n  \u003cli\u003eCompatibility across Holley 4150\/4150C models, including multiple CFM ranges\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eReal-world use cases\u003c\/h2\u003e\n\u003cp\u003eIdeal for classic car restorations, weekend project cars, or routine carburetor refreshes. The set is well-suited for enthusiasts who want to restore peak fueling reliability, achieve smoother idle, and maintain steady performance across varying driving conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRestore a Holley 4150\/4150C carb for a more reliable rebuild\u003c\/li\u003e\n  \u003cli\u003eSupport smoother idle and improved throttle response after repair\u003c\/li\u003e\n  \u003cli\u003ePrepare for routine maintenance with a complete, ready-to-install kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWarranty and support\u003c\/h2\u003e\n\u003cp\u003eAll Kolasina rebuild kits come with a 2-year warranty, offering added peace of mind as you plan your maintenance schedule and rebuild projects.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What Holley carburetor models is the 37-485 rebuild kit compatible with?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Compatible with Holley 4150\/4150C carbs, including 600–850 CFM variants.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the Kolasina 37-485 kit come with a warranty?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It includes a 2-year warranty from the seller.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Kolasina","offers":[{"title":"Default Title","offer_id":42470213419093,"sku":"B0F4J1DYCM","price":47.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/3270\/4597\/files\/kolasina-37-485-carb-rebuild-kit-full-set.jpg?v=1778124126","url":"https:\/\/plentytorque.co.uk\/products\/kolasina-37-485-carburetor-rebuild-kit-for-holley-4-barrel-4150-series-600-850-cfm","provider":"PlentyTorque","version":"1.0","type":"link"}