{"title":"Engine Parts","description":"\u003cp\u003e2001-2004.5 LB7\u003c\/p\u003e","products":[{"product_id":"xdp-street-performance-pushrods-3-8-xd315","title":"2001-2016 LB7\/LLY\/LBZ\/LMM\/LML XDP Street Performance Pushrods (3\/8\") XD315","description":"\u003cp\u003e2001-2016 GM 6.6L Duramax LB7\/LLY\/LBZ\/LMM\/LML\u003c\/p\u003e\n\u003cp\u003eThe XDP Pushrods 3\/8 inch Street Performance XD315 eliminate the weak link in the valvetrain of your 2001-2016 GM 6.6L Duramax. The factory pushrods in your Duramax engine can hardly handle stock output levels.\u003c\/p\u003e\n\u003cp\u003eThe increased cylinder pressure, high engine RPM, and increased valve spring pressures of your modified Duramax can quickly push the limits of your stock pushrods. Even in moderate builds, the factory pushrods can flex, robbing you of power. In most cases your pushrods won't show signs of failure, and the excessive flex is not visible to the naked eye.\u003c\/p\u003e\n\u003cp\u003eJust because you can't see it, does not mean that your factory pushrods are able to handle the load! Don't let a bent pushrod be the reason you need a complete tear down, upgrade today! The XD315 Pushrods are expertly handcrafted using only the highest quality materials.\u003c\/p\u003e\n\u003cp\u003eFeaturing a seamless 4130\/4135 chromoly construction that is cold drawn over a mandrel for maximum durability. Each tip is CNC machined from 86L20 bar stock that is core hardened and triple tempered for the ultimate wear and impact resistance. These extra processes during manufacturing produce a pushrod that is stronger and more durable than your factory pushrods so you can get the most out of your Duramax engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSupports 750HP\u003c\/li\u003e\n\u003cli\u003e170,000 PSI Tensile Strength\u003c\/li\u003e\n\u003cli\u003e4130\/4135 Chromoly Construction\u003c\/li\u003e\n\u003cli\u003e3\/8 inch x .095 inch, 9.430 inch Overall Length\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Notes:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThese Pushrods are a direct replacement for the factory pushrods in your engine. Please consult the factory service manual for removal, installation and valve adjustment instructions.\u003c\/p\u003e","brand":"XDP","offers":[{"title":"Default Title","offer_id":47346723684596,"sku":"XD315","price":349.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0798\/9359\/4356\/files\/XD316-HVCD.jpg?v=1767112796"},{"product_id":"xdp-competition-race-performance-pushrods-7-16-xd316","title":"2001-2016 LB7\/LLY\/LBZ\/LMM\/LML XDP Competition \u0026 Race Performance Pushrods (7\/16\") XD316","description":"\u003cp\u003e2001-2016 GM 6.6L Duramax LB7\/LLY\/LBZ\/LMM\/LML\u003c\/p\u003e\n\u003cp\u003eRestore lost power from the valvetrain in your 2001-2016 GM 6.6L Duramax with the XDP Pushrods 7\/16 inch Competition \u0026amp; Race Performance XD316. The factory pushrods in your Duramax engine are not adequate to handle the stress from your modified engine. Increased cylinder pressures, higher engine RPM, and increased valve spring pressures can quickly max out the material strength of your originally equipped pushrods.\u003c\/p\u003e\n\u003cp\u003eIn most instances you won't see physical signs of wear, damage, or failure in your pushrods. That does not mean that they are able to handle the excess load from a modified engine. The XDP Competition and Race Performance Pushrods feature a larger 7\/16 inch diameter to give you a drastic strength increase that will support 1000HP+.\u003c\/p\u003e\n\u003cp\u003eHandcrafted to XDP's stringent specifications, the XDP Competition \u0026amp; Race Pushrods are made from only the highest quality materials. The 7\/16 inch diameter pushrods are build from seamless 4130\/4135 chromoly tubing that is cold drawn over a mandrel for maximum rigidity and strength.\u003c\/p\u003e\n\u003cp\u003eThe CNC machined tips are made from 86L20 bar stock that is core hardened and triple tempered to provide the ultimate in impact and wear resistance. Not only do these extra steps during the manufacturing process give you the best components, they maximize the performance of your valvetrain.\u003c\/p\u003e\n\u003cp\u003eThe Competition \u0026amp; Race Pushrods can be also be used in mild and stock builds. While they are intended for competition use and high horsepower, the larger pushrod is perfect for those who want to build their engine stronger, or for those who are building now, to make big power down the road. The 7\/16 pushrods can handle 1000HP+ and work perfectly on stock to extreme engines. Sold as a set.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSupports 1000HP+\u003c\/li\u003e\n\u003cli\u003e170,000 PSI Tensile Strength\u003c\/li\u003e\n\u003cli\u003e4130\/4135 Chromoly Construction\u003c\/li\u003e\n\u003cli\u003eGreat For Stock To Extreme Builds\u003c\/li\u003e\n\u003cli\u003e7\/16 x .120, 9.430 Overall Length\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThese Pushrods are a direct replacement for the factory pushrods in your engine. Please consult the factory service manual for removal, installation and valve adjustment instructions.\u003c\/p\u003e","brand":"XDP","offers":[{"title":"Default Title","offer_id":47346723750132,"sku":"XD316","price":378.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0798\/9359\/4356\/files\/XD316-HVCD_b083b92f-1f22-441b-8bfe-c4cf825a3c40.jpg?v=1767120039"},{"product_id":"xdp-hd-billet-rocker-arm-valve-bridge-set-xd384","title":"2001-2024 LB7\/LLY\/LBZ\/LMM\/LML\/L5P XDP HD Billet Rocker Arm Valve Bridge Set XD384","description":"\u003cp\u003e2001-2024 GM 6.6L Duramax LB7\/LLY\/LBZ\/LMM\/LML\/L5P\u003c\/p\u003e\n\u003cp\u003eThe XDP Billet Rocker Arm Valve Bridge Set XD384 will greatly improve the factory valvetrain in your modified 2001-2016 GM 6.6L Duramax. The OE rocker arm bridges in your valvetrain were designed for stock output levels.\u003c\/p\u003e\n\u003cp\u003eOnce modified, your Duramax engine can quickly produce more stress and load than the factory rocker arm bridges were made to handle. The XDP rocker arm bridges are CNC-machined out of hardened 4140 chromoly for extreme strength. Each set is then Nitride coated to minimize friction and provide added protection. Sold as a set.\u003cbr\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNitride Coating\u003c\/li\u003e\n\u003cli\u003eSold As Complete Set\u003c\/li\u003e\n\u003cli\u003eBillet 4140 Chromoly Construction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eApplication Note:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for stock rocker arms only\u003c\/li\u003e\n\u003cli\u003eWill not work with aftermarket rocker arms\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"XDP","offers":[{"title":"Default Title","offer_id":47346725224692,"sku":"XD384","price":459.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0798\/9359\/4356\/files\/XD384-HVCD.jpg?v=1767109100"},{"product_id":"xdp-hd-rocker-arm-shafts-xd385","title":"2001-2024 LB7\/LLY\/LBZ\/LMM\/LML\/L5P XDP HD Rocker Arm Shafts XD385","description":"\u003cp\u003e2001-2024 GM 6.6L Duramax LB7\/LLY\/LBZ\/LMM\/LML\/L5P\u003c\/p\u003e\n\u003cp\u003eThe XDP Rocker Arm Shafts XD385 are specially designed to minimize the common oiling issues in the 2001-2019 GM 6.6L Duramax engines. From the factory, the oil supply to the rocker arm is shut off as the valve is opened. This lack of lubrication can cause excessive wear on your valvetrain and premature failures, especially in high performance applications.\u003c\/p\u003e\n\u003cp\u003eThe XDP Shafts feature revised oil grooves that align with the oil hole in the bushing so you maintain a consistent oil supply. 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Camshaft upgrades and other modifications that increase boost require more valve control.\u003c\/p\u003e\n\u003cp\u003eThe XDP Performance Valve Spring feature a conical design for better valve control than a standard straight spring. The conical design also allows for smaller and lighter spring retainers. Each spring undergoes a stress relief process and is computer load mapped, to ensure quality and long-term reliability.\u003c\/p\u003e\n\u003cp\u003eEach spring is matched within 1 lb of seat pressure to ensure consistency. Sold as a complete set with valve springs, retainers, and locks. Each kit is backed by XDP's 2-year unlimited mileage warranty.\u003cbr\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e125 Lb. 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The OEM head bolts typically can't handle the pressure from high-horsepower applications.\u003c\/p\u003e\n\u003cp\u003eConstructed using 8740 Chrome Moly with an added proprietary element ensures these studs are more durable and will not stretch like the factory bolts. The threads are rolled after heat-treating to deliver optimum fatigue strength.\u003c\/p\u003e\n\u003cp\u003eThese studs are rated at 225,000+ psi tensile strength and 205,000+ yield strength to keep your cylinder heads from lifting under higher combustion pressures. Assembly lubricant sold separately.\u003c\/p\u003e\n\u003cp\u003eA conventional bolt gets twisted as it is tightened, so it's reacting to two different forces at the same time. With a stud the force gets applied to the vertical axis, resulting in a more even clamping force which allows you to obtain a more accurate torque reading.\u003c\/p\u003e\n\u003cp\u003eThese studs are a must-have for high-horsepower applications and are reusable, unlike the OEM Torque-To-Yield (TTY) bolts which must be replaced after each use.\u003c\/p\u003e\n\u003cp\u003eAnother benefit of studs is they provide for easier engine assembly and proper alignment of the cylinder heads every time. 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Thread Cleaning Chasers are an excellent tool to have on-hand to ensure you have properly cleaned the threads in your engine block before the installation of any fasteners.\u003c\/p\u003e\n\u003cp\u003eClean threads provide accurate torque readings and will help give you peace of mind during your engine build or head gasket repair.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eXDP X-TRA Slick Engine \u0026amp; Fastener Assembly Lubricant (Sold Separately):\u003c\/strong\u003e\u003cbr\u003eThe use of XD541 is highly recommended during engine assembly. 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OEM main bolts typically struggle to handle the pressure in high-horsepower engines.\u003c\/p\u003e\n\u003cp\u003eConstructed using an 8740 Chromoly with an added proprietary element ensures these studs are more durable and will not stretch like the factory bolts. The threads are rolled after heat-treating to deliver optimum fatigue strength. These studs are rated at 210,000-230,000 psi yield strength and 220,000-236,000 psi tensile strength to ensure a strong hold under higher combustion pressures.\u003c\/p\u003e\n\u003cp\u003eIn addition to the increased strength, replacing the main bolts with studs also allows you to obtain a more precise torque reading. A bolt gets twisted as it is tightened, so it's reacting to two different forces at the same time.\u003c\/p\u003e\n\u003cp\u003eWith a stud the force gets applied to the vertical axis, resulting in a more even clamping force. These are a must have for high-performance applications and are reusable, unlike the OEM Torque-To-Yield (TTY) bolts which must be replaced after each use.\u003c\/p\u003e\n\u003cp\u003eFurthermore, they can help offer easier engine assembly and proper alignment of the main bearing caps every time. Included in this kit are 12-point nuts, washers, installation instructions. 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