{"title":"Choate | Engine Parts for 2017-2023 L5P Duramax","description":"","products":[{"product_id":"6-6-l5p-choate-pistons-w-rings-2017-2023-coated-flycut-delipped-set","title":"6.6 L5P Choate Pistons w\/ Rings 2017-2023 Coated, Flycut, Delipped Set","description":"\u003cp\u003e\u003cem\u003eAVAILABILITY: Due to high demand and rigorous quality control standards, current lead time for this machined kit is 1-3 weeks. Orders are processed in the order received.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eKey Features and Fixes:\u003c\/h3\u003e\n\u003cp\u003eChoate Engineering Performance incorporates critical features to solve common performance constraints and provide a robust foundation for high-horsepower builds.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePolyphen Coating Tops:\u003c\/strong\u003e The Polyphen Coated Tops act as a thermal barrier to reduce heat transfer into the piston material and oil.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDe-lipped Fuel Bowl:\u003c\/strong\u003e The piston crowns receive a crucial machining modification where the fuel bowl lip is de-lipped. This corrects the fuel spray trajectory to prevent impingement and remove potential hot spots, thereby significantly reducing the risk of piston cracking under high heat and pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Clearance Solution:\u003c\/strong\u003e The flycut valve reliefs eliminate the common constraint of piston-to-valve interference encountered when using performance cams, allowing builders to confidently select higher lift camshafts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerformance Benefits:\u003c\/strong\u003e This heat reduction provides multiple benefits:\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003eLower EGTs (Exhaust Gas Temperatures)\u003c\/li\u003e\n\u003cli\u003eLower Oil Temps\u003c\/li\u003e\n\u003cli\u003eIncreased HP \u0026amp; Fuel Mileage\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Use:\u003c\/strong\u003e These pistons are suited for every day use and racing, making them ideal for the daily driver who occasionally tows or the dedicated track competitor.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eComponents and Parts:\u003c\/h3\u003e\n\u003cp\u003eThis complete kit provides a ready-to-install solution built for durability under high-stress conditions.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Strength Piston Castings:\u003c\/strong\u003e Built from robust materials capable of withstanding the elevated cylinder pressures and high temperatures common with aggressive tuning and high boost levels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb data-path-to-node=\"5,0\" data-index-in-node=\"0\"\u003eComplete Ring Set:\u003c\/b\u003e Each piston comes with a full set of high-quality standard rings. Designed to meet original specifications, these rings provide dependable sealing and oil consumption control for long-term engine health.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWrist Pins and Locks:\u003c\/strong\u003e Includes heavy-duty wrist pins and corresponding locks (or retainers) for secure connection to the connecting rod.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003ePiston Set Includes:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e8 Pistons with Ceramic Coated Tops\u003c\/li\u003e\n\u003cli\u003eNon-coated Piston Skirts\u003c\/li\u003e\n\u003cli\u003e8 Pins\u003c\/li\u003e\n\u003cli\u003e16 Locks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eMachining Process:\u003c\/h3\u003e\n\u003cp\u003eThe integrity and performance of these pistons are achieved through specialized machining processes focused on geometry, clearance, and quality control.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Flycutting:\u003c\/strong\u003e The piston crowns are flycut with precision-depth valve reliefs. This guarantees the necessary piston-to-valve clearance required when installing high-lift performance camshafts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDe-lipped Fuel Bowl:\u003c\/strong\u003e The piston bowl edges are precisely machined (de-lipped) to optimize the fuel spray pattern and help prevent piston cracking by mitigating concentrated hot spots at the bowl lip.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePiston Geometry:\u003c\/strong\u003e Each piston is machined to specific tolerances and weight-matched to maintain engine balance and ensure consistent performance across all cylinders.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePiston Cycling:\u003c\/strong\u003e Each piston goes through vigorous quality cycles at our facility to ensure they meet stringent specifications before assembly and coating.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSizes:\u003c\/strong\u003eThese are the available sizes: STD, .020, .030, .040. Please ensure you know your specific size when placing an order.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eIMPORTANT:\u003c\/strong\u003e\u003c\/span\u003e \u003cem\u003eThere are several piston sizes available. Please be sure that you order the correct size. If you change your piston size after the order has been completed, a restocking and shipping fee may be charged. Standard sized pistons are non-refundable.\u003c\/em\u003e\u003c\/p\u003e","brand":"Choate Performance","offers":[{"title":"Standard","offer_id":50186830545200,"sku":"CEP7227DKPSTDCFD","price":1505.0,"currency_code":"USD","in_stock":true},{"title":".020 Over (0.50mm)","offer_id":50186830577968,"sku":"CEP7227DKP5MMCFD","price":1505.0,"currency_code":"USD","in_stock":true},{"title":".030 Over (0.75mm)","offer_id":66825344090416,"sku":"CEP7227DKP75MMCFD","price":1505.0,"currency_code":"USD","in_stock":true},{"title":".040 Over (1.016mm)","offer_id":50186830610736,"sku":"CEP7227DKP10MMCFD","price":1505.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/2680\/1200\/files\/LML-Duramax-Choate-Pistons-with-Rings-2011-2016-Coated-Flycut-Delipped-Set_c1c95960-c2ee-4496-8431-72f4b31a33c1.png?v=1759944046"},{"product_id":"gm-duramax-6-6l-l5p-arp2000-head-stud-kit","title":"GM Duramax 6.6L L5P ARP2000 Head Stud Kit","description":"\u003ch2 data-path-to-node=\"0\"\u003eARP Pro Series ARP2000 Head Stud Kit\u003c\/h2\u003e\n\u003ch3 data-path-to-node=\"1\"\u003eFor Chevy\/GMC 6.6L Duramax L5P (2017–Present)\u003c\/h3\u003e\n\u003cp data-path-to-node=\"2\"\u003e\u003cspan class=\"citation-58\"\u003eThe \u003c\/span\u003e\u003cb data-index-in-node=\"4\" data-path-to-node=\"2\"\u003e\u003cspan class=\"citation-58\"\u003eL5P Duramax\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-58 citation-end-58\"\u003e is a powerhouse, but like its predecessors, it is built from the factory with \"torque-to-yield\" head bolts.\u003csup data-turn-source-index=\"1\" class=\"superscript\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e These bolts are designed to stretch once and stay that way—making them a major liability when you add a tuner, a larger turbo, or heavy towing demands.\u003c\/p\u003e\n\u003cp data-path-to-node=\"2\"\u003e\u003cspan class=\"citation-57\"\u003eThe \u003cstrong\u003eARP2000 Head Stud\u003c\/strong\u003e\u003c\/span\u003e\u003cspan class=\"citation-57 citation-end-57\"\u003e\u003cstrong\u003e Kit \u003c\/strong\u003eis the essential upgrade for the 2017+ L5P platform.\u003csup data-turn-source-index=\"2\" class=\"superscript\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003cspan class=\"citation-56\"\u003eBy replacing the factory bolts with \u003c\/span\u003e\u003cb data-index-in-node=\"110\" data-path-to-node=\"3\"\u003e\u003cspan class=\"citation-56\"\u003eARP2000®\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-56 citation-end-56\"\u003e studs, you provide the massive clamping force required to keep the cylinder heads from \"lifting\" under high boost and combustion pressures.\u003csup data-turn-source-index=\"3\" class=\"superscript\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"2\"\u003e \u003c\/p\u003e\n\u003chr data-path-to-node=\"4\"\u003e\n\u003ch3 data-path-to-node=\"5\"\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3 data-path-to-node=\"5\"\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul data-path-to-node=\"6\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,0,0\"\u003e\u003cspan class=\"citation-55\"\u003e\u003c\/span\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"6,0,0\"\u003e\u003cspan class=\"citation-55\"\u003eARP2000® Material:\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-55\"\u003e This proprietary super-alloy is rated at a massive \u003c\/span\u003e\u003cb data-index-in-node=\"70\" data-path-to-node=\"6,0,0\"\u003e\u003cspan class=\"citation-55\"\u003e220,000 psi tensile strength\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-55 citation-end-55\"\u003e, providing significantly more clamping force than standard 8740 chrome moly or factory hardware.\u003csup data-turn-source-index=\"4\" class=\"superscript\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"citation-55 citation-end-55\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"6,1,0\"\u003eEngineered for the L5P:\u003c\/b\u003e Specifically designed to accommodate the unique geometry and requirements of the 2017 and newer 6.6L Duramax engines.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"citation-55 citation-end-55\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"6,2,0\"\u003eCold-Forged \u0026amp; Heat-Treated:\u003c\/b\u003e\u003cspan class=\"citation-54 citation-end-54\"\u003e Each stud is heat-treated before thread rolling and machining, which results in a fastener with 10x better fatigue strength than cheaper alternatives.\u003csup data-turn-source-index=\"5\" class=\"superscript\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"citation-55 citation-end-55\"\u003e\u003cspan class=\"citation-54 citation-end-54\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"6,3,0\"\u003e\u003cspan class=\"citation-53\"\u003eBroached Stud Ends:\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-53 citation-end-53\"\u003e The tip of each stud is broached to allow for a simple Allen wrench installation, making it easier to seat the studs in the block even when the engine is still in the truck.\u003csup data-turn-source-index=\"6\" class=\"superscript\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"citation-55 citation-end-55\"\u003e\u003cspan class=\"citation-54 citation-end-54\"\u003e\u003cspan class=\"citation-53 citation-end-53\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"6,4,0\"\u003e\u003cspan class=\"citation-52\"\u003eBlack Oxide Protection:\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-52 citation-end-52\"\u003e Finished in a durable black oxide to resist corrosion and ensure long-term reliability under the hood.\u003csup data-turn-source-index=\"7\" class=\"superscript\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr data-path-to-node=\"10\"\u003e\n\u003ch3 data-path-to-node=\"11\"\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3 data-path-to-node=\"11\"\u003eWhy L5P Owners Need This Kit\u003c\/h3\u003e\n\u003cp data-path-to-node=\"12\"\u003eThe L5P comes from the factory with impressive torque, but it also operates at higher cylinder pressures than earlier generations. If you plan on running \"aggressive\" tunes or upgrading the fuel system, the factory bolts can fail to maintain a seal.\u003c\/p\u003e\n\u003cp data-path-to-node=\"13\"\u003e\u003cspan class=\"citation-51 citation-end-51\"\u003eThe ARP 230-4301 kit ensures that the cylinder head and gasket remain a single, immovable unit.\u003csup data-turn-source-index=\"8\" class=\"superscript\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003cspan class=\"citation-50 citation-end-50\"\u003eThis is the \"peace of mind\" mod that prevents the dreaded \"bubbling in the coolant overflow\" and the massive repair bills that follow a blown head gasket.\u003csup data-turn-source-index=\"9\" class=\"superscript\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"13\"\u003e\u003cspan class=\"citation-50 citation-end-50\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"14,0\"\u003e\u003cspan class=\"citation-49\"\u003eKit Includes:\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-49 citation-end-49\"\u003e Complete set of ARP2000 studs, parallel-ground washers, 12-point chrome moly nuts, and a packet of ARP Ultra-Torque assembly lubricant for precise torque loading.\u003csup data-turn-source-index=\"10\" class=\"superscript\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"ARP","offers":[{"title":"Default Title","offer_id":50550409363760,"sku":"230-4301","price":709.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/2680\/1200\/files\/GMDuramax6.6LL5PARP2000HeadStudKit.png?v=1768927014"},{"product_id":"gm-duramax-6-6l-l5p-ca625-head-stud-kit","title":"GM Duramax 6.6L L5P CA625+ Head Stud Kit","description":"\u003ch2 data-path-to-node=\"0\"\u003eARP Custom Age 625+ Head Stud Kit\u003c\/h2\u003e\n\u003ch3 data-path-to-node=\"1\"\u003eFor Chevy\/GMC 6.6L Duramax L5P (2017–Present)\u003c\/h3\u003e\n\u003cp data-path-to-node=\"2\"\u003eFor the L5P owner who demands the absolute maximum in engine reinforcement, the \u003cb data-index-in-node=\"80\" data-path-to-node=\"2\"\u003eCA625+ Head Stud Kit\u003c\/b\u003e represents the pinnacle of fastener technology. While the L5P platform is incredibly stout from the factory, extreme builds pushing high boost levels or heavy nitrous loads can exceed the limits of standard fasteners.\u003c\/p\u003e\n\u003cp data-path-to-node=\"3\"\u003eThe \u003cb data-index-in-node=\"4\" data-path-to-node=\"3\"\u003eCustom Age 625+\u003c\/b\u003e series is the \"nuclear option\" for the 2017+ Duramax, offering a level of tensile strength and yield protection that is virtually unmatched in the diesel aftermarket.\u003c\/p\u003e\n\u003cp data-path-to-node=\"3\"\u003e \u003c\/p\u003e\n\u003chr data-path-to-node=\"4\"\u003e\n\u003ch3 data-path-to-node=\"5\"\u003e\u003c\/h3\u003e\n\u003ch3 data-path-to-node=\"5\"\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul data-path-to-node=\"6\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,0,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"6,0,0\"\u003eCustom Age 625+ Super-Alloy:\u003c\/b\u003e\u003cspan class=\"citation-76\"\u003e This ultra-premium material delivers a typical tensile strength of \u003c\/span\u003e\u003cb data-index-in-node=\"96\" data-path-to-node=\"6,0,0\"\u003e\u003cspan class=\"citation-76\"\u003e260,000–280,000 psi\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-76 citation-end-76\"\u003e.\u003csup data-turn-source-index=\"1\" class=\"superscript\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e It is designed to handle the massive cylinder pressures found in competition-level L5P builds.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,1,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"6,1,0\"\u003eUltimate Fatigue Resistance:\u003c\/b\u003e Engineered to withstand the constant heat cycles and extreme vibrations of a high-performance diesel engine without losing its clamping preload.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,2,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"6,2,0\"\u003eSuperior Gasket Sealing:\u003c\/b\u003e By providing roughly \u003cb data-index-in-node=\"46\" data-path-to-node=\"6,2,0\"\u003e30% more strength\u003c\/b\u003e than the standard ARP2000® kit, these studs ensure the cylinder head remains perfectly mated to the block, even under triple-digit boost pressures.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,3,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"6,3,0\"\u003eCorrosion Immunity:\u003c\/b\u003e The 625+ alloy is naturally resistant to the harsh environment of an engine bay, ensuring the hardware remains serviceable and structurally sound for the life of the engine.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,4,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"6,4,0\"\u003ePrecision Broached:\u003c\/b\u003e\u003cspan class=\"citation-75 citation-end-75\"\u003e Features broached ends for easy installation with an Allen wrench, allowing you to bottom out the studs in the block with precision.\u003csup data-turn-source-index=\"2\" class=\"superscript\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr data-path-to-node=\"4\"\u003e\n\u003ch3 data-path-to-node=\"11\"\u003e\u003c\/h3\u003e\n\u003ch3 data-path-to-node=\"11\"\u003eWhy Choose the 230-4302 over the 230-4301?\u003c\/h3\u003e\n\u003cp data-path-to-node=\"12\"\u003eIf your L5P is staying relatively stock or has a mild \"street\" tune, the standard ARP2000 (230-4301) is often sufficient. However, if you are building a \u003cb data-index-in-node=\"153\" data-path-to-node=\"12\"\u003ededicated drag truck, a high-horsepower sled puller, or a compound-turbo street beast\u003c\/b\u003e, the 230-4302 is the only way to go.\u003c\/p\u003e\n\u003cp data-path-to-node=\"13\"\u003eThe L5P head design and cooling jackets are highly efficient, but they rely entirely on the fastener to maintain that seal. \u003cspan class=\"citation-74 citation-end-74\"\u003eThe Custom Age 625+ material provides the highest safety margin available, preventing \"head lift\" and protecting your expensive engine investment from catastrophic gasket failure.\u003c\/span\u003e\u003c\/p\u003e\n\u003cblockquote data-path-to-node=\"14\"\u003e\n\u003cp data-path-to-node=\"14,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"14,0\"\u003eComplete Package:\u003c\/b\u003e\u003cspan class=\"citation-73 citation-end-73\"\u003e This premium kit includes all studs, 12-point nuts, parallel-ground washers, and the essential ARP Ultra-Torque fastener lubricant.\u003csup data-turn-source-index=\"4\" class=\"superscript\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"ARP","offers":[{"title":"Default Title","offer_id":50550409396528,"sku":"230-4302","price":2273.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/2680\/1200\/files\/GMDuramax6.6LL5PCA625_HeadStudKit.png?v=1768927020"},{"product_id":"gmc-duramax-l5p-rod-bolt-kit","title":"GMC Duramax L5P Rod Bolt Kit","description":"\u003ch2 data-path-to-node=\"0\"\u003eARP Pro Series Connecting Rod Bolt Kit\u003c\/h2\u003e\n\u003ch3 data-path-to-node=\"1\"\u003eFor Chevy\/GMC 6.6L Duramax Diesel (2001–2016)\u003c\/h3\u003e\n\u003cp data-path-to-node=\"2\"\u003e\u003cspan class=\"citation-136 citation-end-136\"\u003eThe connecting rod bolts are arguably the most important fasteners in your engine’s rotating assembly.\u003csup data-turn-source-index=\"1\" class=\"superscript\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003cspan class=\"citation-135 citation-end-135\"\u003eWhen you increase horsepower and RPM, the \"big end\" of the connecting rod can actually become oval-shaped under load, stretching and bending the factory bolts.\u003csup data-turn-source-index=\"2\" class=\"superscript\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"2\"\u003e\u003cspan class=\"citation-135 citation-end-135\"\u003e\u003cspan class=\"citation-134\"\u003eThe \u003c\/span\u003e\u003cb data-index-in-node=\"4\" data-path-to-node=\"3\"\u003e\u003cspan class=\"citation-134\"\u003eARP L5P Rod Bolt\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-134\"\u003e kit replaces weak factory rod bolts with high-strength \u003c\/span\u003e\u003cb data-index-in-node=\"72\" data-path-to-node=\"3\"\u003e\u003cspan class=\"citation-134\"\u003eARP2000®\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-134 citation-end-134\"\u003e fasteners, providing the clamping force and fatigue resistance necessary to prevent catastrophic bottom-end failure in your LB7, LLY, LBZ, LMM, or LML engine.\u003csup data-turn-source-index=\"3\" class=\"superscript\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"2\"\u003e \u003c\/p\u003e\n\u003chr data-path-to-node=\"4\"\u003e\n\u003ch3 data-path-to-node=\"5\"\u003e\u003c\/h3\u003e\n\u003ch3 data-path-to-node=\"5\"\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul data-path-to-node=\"6\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,0,0\"\u003e\u003cspan class=\"citation-133\"\u003e\u003c\/span\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"6,0,0\"\u003e\u003cspan class=\"citation-133\"\u003eARP2000® Construction:\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-133\"\u003e Crafted from a proprietary super-alloy heat-treated to a tensile strength of \u003c\/span\u003e\u003cb data-index-in-node=\"100\" data-path-to-node=\"6,0,0\"\u003e\u003cspan class=\"citation-133\"\u003e220,000 psi\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-133 citation-end-133\"\u003e.\u003csup data-turn-source-index=\"4\" class=\"superscript\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e This offers a significant upgrade over the 200,000 psi of standard 8740 chrome moly.\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,1,0\"\u003e\u003cb data-path-to-node=\"6,1,0\" data-index-in-node=\"0\"\u003eWave-Loc™ Technology:\u003c\/b\u003e\u003cspan class=\"citation-132 citation-end-132\"\u003e These bolts feature ARP’s patented Wave-Loc design, which provides a precise interference fit in the rod.\u003csup class=\"superscript\" data-turn-source-index=\"5\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e This ensures perfect cap alignment and reduces stress risers that can lead to rod breakage.\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,2,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"6,2,0\"\u003eExtreme Fatigue Life:\u003c\/b\u003e\u003cspan class=\"citation-131\"\u003e Cycle testing shows these Pro Series bolts are nearly \u003c\/span\u003e\u003cb data-index-in-node=\"76\" data-path-to-node=\"6,2,0\"\u003e\u003cspan class=\"citation-131\"\u003efive times more reliable\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-131 citation-end-131\"\u003e than stock fasteners, making them essential for high-boost or high-RPM applications.\u003csup data-turn-source-index=\"6\" class=\"superscript\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,3,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"6,3,0\"\u003eCold-Forged Strength:\u003c\/b\u003e\u003cspan class=\"citation-130 citation-end-130\"\u003e Threads are rolled after heat treatment, ensuring the grain flow of the metal remains intact for maximum durability.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,4,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"6,4,0\"\u003eDirect OEM Replacement:\u003c\/b\u003e\u003cspan class=\"citation-129 citation-end-129\"\u003e Specifically designed to work with stock Duramax connecting rods (Cap screw style).\u003csup data-turn-source-index=\"8\" class=\"superscript\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr data-path-to-node=\"10\"\u003e\n\u003ch3 data-path-to-node=\"11\"\u003e\u003c\/h3\u003e\n\u003ch3 data-path-to-node=\"11\"\u003eWhy Upgrade Your Rod Bolts?\u003c\/h3\u003e\n\u003cp data-path-to-node=\"12\"\u003e\u003cspan class=\"citation-128 citation-end-128\"\u003eIn a high-performance diesel engine, the rod bolts are subject to immense alternating tension and cyclic bending.\u003csup data-turn-source-index=\"9\" class=\"superscript\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003cspan class=\"citation-127 citation-end-127\"\u003eFactory bolts are often \"Torque-To-Yield\" (TTY), meaning they are intended for a single use and have a limited threshold for stress.\u003csup data-turn-source-index=\"10\" class=\"superscript\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"13\"\u003eIf a rod bolt fails, the rod cap breaks free, leading to a \"thrown rod\" that usually destroys the engine block, crankshaft, and oil pan instantly. By installing the \u003cspan class=\"citation-135 citation-end-135\"\u003e\u003cb data-index-in-node=\"4\" data-path-to-node=\"3\"\u003e\u003cspan class=\"citation-134\"\u003eARP L5P Rod Bolt\u003c\/span\u003e\u003c\/b\u003e\u003c\/span\u003e kit, you are reinforcing the heart of your engine with the strongest fasteners available for the OEM rods.\u003c\/p\u003e\n\u003cblockquote data-path-to-node=\"14\"\u003e\n\u003cp data-path-to-node=\"14,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"14,0\"\u003eProfessional Recommendation:\u003c\/b\u003e ARP highly recommends having your connecting rods \u003cb data-index-in-node=\"79\" data-path-to-node=\"14,0\"\u003eresized\u003c\/b\u003e by a professional machine shop after installing new rod bolts. The increased clamping force can slightly change the roundness of the rod's big-end bore.\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"ARP","offers":[{"title":"Default Title","offer_id":50550409560368,"sku":"230-6302","price":281.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/2680\/1200\/files\/230-6301.jpg?v=1768951762"},{"product_id":"silverado-sierra-2500-3500-2017-21-6-6l-l5p-heavy-duty-head-stud-kit-gator-fasteners","title":"Silverado\/Sierra 2500\/3500 2017-21 6.6L \u0026 L5P Heavy Duty Head Stud Kit Gator Fasteners","description":"\u003cp\u003eUnleash the Full Potential of Your L5P Duramax. The Gator Fasteners Heavy Duty Head Stud Kit (HSK66L5P) is built to handle the extreme pressures and demands of high-performance 2017-2025 6.6L L5P Duramax engines.\u003c\/p\u003e\n\u003cp\u003eWhether you're pushing high boost, heavy towing, or aggressive tuning, this kit ensures superior clamping force to prevent head gasket failures.\u003c\/p\u003e\n\u003cp\u003eUnlike factory head bolts that stretch under high pressure, Gator Fasteners head studs offer maximum durability and strength, making them the perfect solution for drag racing, sled pulling, off-road performance, and daily driving.\u003c\/p\u003e\n\u003cp\u003eUpgrade to Gator Fasteners Heavy Duty Head Studs and experience the difference in strength, reliability, and performance-because Nothing Bites Like Gator.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMade from HD220 High-Strength Material - Engineered for extreme durability and high-performance applications.\u003c\/li\u003e\n\u003cli\u003e220,000 PSI Tensile Strength - Handles high cylinder pressures and extreme performance conditions.\u003c\/li\u003e\n\u003cli\u003eMaximum Clamping Force - Reduces the risk of head gasket failures in high-boost applications.\u003c\/li\u003e\n\u003cli\u003eRolled Threads After Heat Treating - Increases strength and fatigue resistance for long-term reliability.\u003c\/li\u003e\n\u003cli\u003eIncludes Gator Juice Assembly Lube - Ensures smooth installation and proper torque load.\u003c\/li\u003e\n\u003cli\u003ePrecision Machined \u0026amp; Heat Treated - Ensures exact fitment and superior performance.\u003c\/li\u003e\n\u003cli\u003eComplete Installation Kit - Includes high-quality washers and nuts for a secure installation.\u003c\/li\u003e\n\u003cli\u003eReplaces Factory Head Bolts - Perfect upgrade for performance builds and heavy-duty applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"Gator Fasteners","offers":[{"title":"Default Title","offer_id":50552476107056,"sku":"HSK66L5P-JDZH","price":750.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/2680\/1200\/files\/HSK66L5P_0-JDZH.jpg?v=1769032771"},{"product_id":"harmonic-damper-bolt-for-chevy-gmc-2001-19-6-6l-duramax-gator-fasteners","title":"Harmonic Damper Bolt for Chevy\/GMC (2001-19) 6.6L Duramax Gator Fasteners","description":"\u003cp\u003eIf you are wanting to keep your 6.6L Duramax on the road for the long haul, you need the high quality parts like these Gator Fasteners.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2001-2019 Chevy Duramax 6.6L\u003c\/li\u003e\n\u003cli\u003e2001-2019 GMC Duramax 6.6L\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"Gator Fasteners","offers":[{"title":"Default Title","offer_id":50552476270896,"sku":"HDB66-JDZH","price":47.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/2680\/1200\/files\/HDB66_0-JDZH.jpg?v=1769032715"},{"product_id":"heavy-duty-up-pipe-bolt-kit-for-chevy-gmc-2017-25-6-6l-l5p-duramax-diesel-gator-fasteners","title":"Heavy Duty Up-Pipe Bolt Kit for Chevy\/GMC 2017-25 6.6L L5P Duramax Diesel Gator Fasteners","description":"\u003cp\u003eUpgrade your 2017-2025 Chevy\/GMC 6.6L L5P Duramax Diesel with the Gator Fasteners HD220 Heavy Duty Up-Pipe Bolt Kit (UPBK66L5P). Engineered from Gator's exclusive HD220 alloy, these bolts deliver industry-leading tensile strength (220,000+ PSI), far surpassing standard 10.9 and 12.9 grade fasteners.\u003c\/p\u003e\n\u003cp\u003eThis ensures your up-pipe connections remain secure and leak-free, even under the extreme heat and vibration of modern diesel engines.\u003c\/p\u003e\n\u003cp\u003eThis comprehensive kit includes all the bolts required for both the up-pipe to exhaust manifold and the up-pipe to turbo pedestal connections, providing a complete hardware solution for your exhaust upgrades or repairs.\u003c\/p\u003e\n\u003cp\u003eThe corrosion-resistant black oxide finish ensures long-lasting protection against rust and exhaust byproducts. Each bolt is precision-machined for a direct fit, making installation straightforward and reliable.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Compatibility:\u003c\/strong\u003e Fits 2017-2025 Chevy Silverado and GMC Sierra 2500\/3500 HD trucks equipped with the 6.6L L5P Duramax Diesel engine.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHD220 High-Strength Material - Proprietary alloy with 220,000+ PSI tensile strength for unmatched durability\u003c\/li\u003e\n\u003cli\u003eComplete Up-Pipe Hardware - Includes all bolts needed for both up-pipe to exhaust manifold and up-pipe to turbo pedestal connections\u003c\/li\u003e\n\u003cli\u003eEngineered for Extreme Conditions - Withstands high heat, thermal cycling, and vibration in demanding diesel exhaust environments\u003c\/li\u003e\n\u003cli\u003eCorrosion Resistant - Black oxide finish protects against rust and exhaust byproducts\u003c\/li\u003e\n\u003cli\u003ePrecision Fit - Direct replacement for factory hardware on 2017-2025 Chevy\/GMC 6.6L L5P Duramax engines\u003c\/li\u003e\n\u003cli\u003eGator Fasteners Quality - Backed by Gator Fasteners' commitment to top-tier strength and reliability - Nothing Bites Like Gator\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"Gator Fasteners","offers":[{"title":"Default Title","offer_id":50552476369200,"sku":"UPBK66L5P-JDZH","price":94.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/2680\/1200\/files\/UPBK66L5P-JDZH.png?v=1769032674"},{"product_id":"heavy-duty-exhaust-manifold-bolt-kit-for-2017-2025-silverado-sierra-2500-3500-hd-6-6l-duramax-diesel-gator-fasteners","title":"Heavy Duty Exhaust Manifold Bolt Kit for 2017-2025 Silverado\/Sierra 2500\/3500 HD 6.6L L5P Duramax Diesel Gator Fasteners","description":"\u003cp\u003eEnsure a reliable and durable exhaust manifold seal on your 2017-2025 Chevy\/GMC 6.6L L5P Duramax Diesel with the Gator Fasteners HD220 Heavy Duty Exhaust Manifold Stud Kit (EMBK66L5P).\u003c\/p\u003e\n\u003cp\u003eCrafted from our proprietary HD220 alloy, these studs offer tensile strength exceeding 220,000 PSI, significantly outperforming standard grade 10.9, 12.9, and 8740 chromoly studs commonly used in the industry.\u003c\/p\u003e\n\u003cp\u003eDesigned to resist the harsh thermal cycling and corrosive environment of diesel exhaust systems, these black oxide finished studs maintain their integrity over time, preventing common issues like stretched threads, manifold warping, and exhaust leaks.\u003c\/p\u003e\n\u003cp\u003ePrecision-machined for a direct fit, this kit ensures easy installation and long-term reliability for your Duramax engine.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVehicle Compatibility: Fits 2017-2025 Chevy Silverado and GMC Sierra 2500\/3500 HD trucks equipped with the 6.6L L5P Duramax Diesel engine.\u003c\/li\u003e\n\u003cli\u003eHD220 High-Strength Material - Proprietary alloy with over 220,000 PSI tensile strength, engineered for superior durability\u003c\/li\u003e\n\u003cli\u003eExceptional Heat \u0026amp; Fatigue Resistance - Designed to withstand extreme exhaust temperatures and thermal cycling without stretching or failure\u003c\/li\u003e\n\u003cli\u003eCorrosion Resistant - Black oxide finish protects against rust and harsh diesel exhaust environments\u003c\/li\u003e\n\u003cli\u003ePrecision Fit - Direct replacement for factory exhaust manifold studs on 2017-2025 Chevy\/GMC 6.6L L5P Duramax engines\u003c\/li\u003e\n\u003cli\u003eLong-Lasting Performance - Provides a secure, reliable seal for your exhaust manifold, preventing leaks and failures\u003c\/li\u003e\n\u003cli\u003eGator Fasteners Quality - Backed by our commitment to premium quality and reliability - Nothing Bites Like Gator\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"Gator Fasteners","offers":[{"title":"Default Title","offer_id":50552476500272,"sku":"EMBK66L5P-JDZH","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/2680\/1200\/files\/EMBK66L5P-JDZH.png?v=1769032596"},{"product_id":"heavy-duty-flexplate-bolt-kit-for-2011-2025-silverado-sierra-6-6l-duramax-diesel-gator-fasteners","title":"Heavy Duty Flexplate Bolt Kit for 2001-2025 Silverado\/Sierra 6.6L Duramax Diesel Gator Fasteners","description":"\u003cp\u003eThe Gator Fasteners Heavy Duty Flexplate Bolt Kit is designed for LB7, LLY, LBZ, LMM, LML \u0026amp; L5P 6.6L Duramax Diesel engines and delivers unmatched durability and strength.\u003c\/p\u003e\n\u003cp\u003eFactory flexplate bolts (GM part number 11610965) are torque-to-yield (TTY), meaning they stretch upon installation and must never be reused. However, the Gator Fasteners HD220 flexplate bolts are fully reusable, saving you money while providing superior performance.\u003c\/p\u003e\n\u003cp\u003eMost competitors use 8740 Chromoly steel, but Gator Fasteners takes it a step further. These bolts are manufactured from the same HD220 material found in their Heavy Duty Series Head Studs, giving them a significant strength advantage over ARP 8740 Pro Series and other aftermarket options.\u003c\/p\u003e\n\u003cp\u003eWith increased clamping load and rolled threads, these flexplate bolts deliver exceptional reliability, reducing the risk of flexplate failure. The 12-point head is larger than stock, ensuring a more secure connection and improved torque distribution.\u003c\/p\u003e\n\u003cp\u003eWhether you're running a factory or aftermarket flexplate, the Gator Fasteners HD Flexplate Bolt Kit provides the strength and reliability you need to handle extreme performance applications.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIf you're looking for the strongest, most durable flexplate bolts on the market, this is it!\u003c\/li\u003e\n\u003cli\u003ePremium Heavy-Duty Flexplate Bolt Kit for 2001-2025 6.6L Duramax Diesel (LB7, LLY, LBZ, LMM, LML, L5P)\u003c\/li\u003e\n\u003cli\u003eStronger Than 8740 Chromoly Steel - Made from Gator Fasteners' HD220 material for superior durability\u003c\/li\u003e\n\u003cli\u003eSuperior Clamping Load \u0026amp; Strength - Far exceeds factory torque-to-yield bolts\u003c\/li\u003e\n\u003cli\u003eFully Reusable - Unlike OEM bolts (GM 11610965) which must be replaced after removal\u003c\/li\u003e\n\u003cli\u003eRolled Threads for Maximum Strength - Enhances durability and prevents thread failure\u003c\/li\u003e\n\u003cli\u003eWorks with OEM \u0026amp; Aftermarket Flexplates - Versatile fit for stock and upgraded setups\u003c\/li\u003e\n\u003cli\u003e12-Point Head for Maximum Torque Handling - Larger than stock for increased strength\u003c\/li\u003e\n\u003cli\u003ePremium Heavy-Duty Flexplate Bolt Kit for 2001-2025 6.6L Duramax Diesel (LB7, LLY, LBZ, LMM, LML, L5P)\u003c\/li\u003e\n\u003cli\u003eStronger Than 8740 Chromoly Steel - Made from Gator Fasteners' HD220 material for superior durability\u003c\/li\u003e\n\u003cli\u003eSuperior Clamping Load \u0026amp; Strength - Far exceeds factory torque-to-yield bolts\u003c\/li\u003e\n\u003cli\u003eFully Reusable - Unlike OEM bolts (GM 11610965) which must be replaced after removal\u003c\/li\u003e\n\u003cli\u003eRolled Threads for Maximum Strength - Enhances durability and prevents thread failure\u003c\/li\u003e\n\u003cli\u003eWorks with OEM \u0026amp; Aftermarket Flexplates - Versatile fit for stock and upgraded setups\u003c\/li\u003e\n\u003cli\u003e12-Point Head for Maximum Torque Handling - Larger than stock for increased strength\u003c\/li\u003e\n\u003cli\u003eRolled Threads After Heat Treating - Increases strength and fatigue resistance for maximum durability\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"Gator Fasteners","offers":[{"title":"Default Title","offer_id":50552476565808,"sku":"FPBK66-JDZH","price":132.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/2680\/1200\/files\/FPBK66-JDZH.png?v=1769032544"}],"url":"https:\/\/choateperformance.com\/collections\/choate-engine-parts-for-2017-2023-l5p-duramax.oembed","provider":"choateperformance","version":"1.0","type":"link"}