{"product_id":"arp430-0203","title":"ARP 430-0203 SS 12pt Upper Rocker Cover Bolt Kit | 2004.5-2010 GM Sierra\/Silverado 2500HD\/3500HD 6.6L Duramax LLY\/LMM","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e \n\n\u003cul\u003e\n  \u003cli\u003eStainless steel construction resists corrosion\u003c\/li\u003e\n  \u003cli\u003e12 point head for improved tool access\u003c\/li\u003e\n  \u003cli\u003eFits 2004.5-2010 Duramax LLY and LMM\u003c\/li\u003e\n  \u003cli\u003eDesigned for upper rocker cover applications\u003c\/li\u003e\n  \u003cli\u003eImproved clamping force over factory bolts\u003c\/li\u003e\n  \u003cli\u003eMaintains proper valve cover sealing pressure\u003c\/li\u003e\n  \u003cli\u003ePrecision rolled threads for accurate torque\u003c\/li\u003e\n  \u003cli\u003eResists rust in high heat environments\u003c\/li\u003e\n  \u003cli\u003eReusable hardware for long term service\u003c\/li\u003e\n  \u003cli\u003eDirect fit with no modifications required\u003c\/li\u003e\n  \u003cli\u003eTrusted ARP engineering and quality\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003e Give Your Valve Covers A Clean Look With Hardware That Performs \u003c\/h4\u003e \n\n\u003cp\u003e When you are dialing in your Duramax, it is often the small finishing touches that separate a quick job from something you are actually proud of. This ARP upper rocker cover bolt kit brings both style and reliability to the top end of your engine, replacing factory hardware that tends to wear out or corrode over time. Right away, the stainless steel construction stands out, giving you a cleaner look while also holding up better in harsh engine bay conditions. Additionally, the improved clamping force helps keep your valve cover sealed properly, which goes a long way in preventing oil seepage that can make a mess over time. The 12 point head design also makes life easier during install, especially when space is tight and you need solid tool engagement. It is the kind of upgrade that feels right when you are already in there doing maintenance or upgrades. What’s more, the reusable design means you are set up for future service without worrying about replacing worn bolts again. It is a simple change that adds both confidence and a more refined finish under the hood. \u003c\/p\u003e \n\n\u003ch4\u003e Precision Stainless Fasteners Built For Consistent Duramax Sealing Performance \u003c\/h4\u003e \n\n\u003cp\u003e The ARP 430-0203 upper rocker cover bolt kit is engineered for 2004.5-2010 GM 6.6L Duramax LLY and LMM engines, ensuring proper fitment and reliable performance. Each fastener is manufactured from high quality stainless steel, offering strong resistance to corrosion in high heat and oil exposed environments. Furthermore, the threads are precision rolled to improve strength and provide more accurate torque readings during installation. This allows for consistent preload across the rocker cover, which is critical for maintaining gasket integrity over time. The 12 point head design improves tool engagement and helps reduce the risk of fastener damage during installation or removal. Additionally, the hardware is designed to be reusable, supporting long term serviceability when proper torque procedures are followed. The kit includes the correct bolts for the upper rocker cover, making it a straightforward replacement without modification. Altogether, this kit delivers a durable and well engineered fastening solution for maintaining valve cover sealing performance. \u003c\/p\u003e \n\n\u003cp\u003e\u003cstrong\u003e Fitment: \u003c\/strong\u003e 2004.5, 2005, 2006, 2007, 2008, 2009, 2010 GM Sierra\/Silverado 2500HD\/3500HD 6.6L Duramax LLY\/LMM \u003c\/p\u003e \n\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e \u003c\/p\u003e\u003cul\u003e\n  \u003cli\u003eFits 2004.5-2010 LLY and LMM engines only\u003c\/li\u003e\n  \u003cli\u003eDesigned for upper rocker cover applications\u003c\/li\u003e\n  \u003cli\u003eARP thread lubricant recommended for installation\u003c\/li\u003e\n  \u003cli\u003eFollow ARP torque specifications carefully\u003c\/li\u003e\n  \u003cli\u003eNot intended for lower cover locations\u003c\/li\u003e\n  \u003cli\u003eEnsure sealing surfaces are clean before install\u003c\/li\u003e\n  \u003cli\u003eInspect valve cover gasket condition\u003c\/li\u003e\n  \u003cli\u003eProper torque sequence helps prevent leaks\u003c\/li\u003e\n  \u003cli\u003eCompatible with stock and aftermarket covers\u003c\/li\u003e\n  \u003cli\u003eIdeal for maintenance or engine rebuilds\u003c\/li\u003e\n  \u003cli\u003eAllow engine to cool before installation\u003c\/li\u003e\n\u003c\/ul\u003e  ","brand":"ARP","offers":[{"title":"Default Title","offer_id":54045988946204,"sku":"ARP430-0203","price":79.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/arp-334-2103_xl.jpg?v=1776364329","url":"https:\/\/www.alligatorperformance.com\/products\/arp430-0203","provider":"Alligator Performance","version":"1.0","type":"link"}