{"title":"Engine Parts","description":"\u003cp\u003e2017+ L5P\u003c\/p\u003e","products":[{"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. 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These shafts are manufactured from hardened 4130 chromoly for extreme durability.\u003c\/p\u003e\n\u003cp\u003eEach shaft comes ready to install and has threaded pipe plugs at each end so the shafts can be cleaned, inspected, and hot tanked during an engine rebuild.\u003cbr\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCNC Machined\u003c\/li\u003e\n\u003cli\u003e.250 inch Wall Thickness\u003c\/li\u003e\n\u003cli\u003e4130 Chromoly Steel Construction\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"XDP","offers":[{"title":"Default Title","offer_id":47346725257460,"sku":"XD385","price":484.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0798\/9359\/4356\/files\/XD385-HVCD.jpg?v=1767109007"},{"product_id":"xdp-street-performance-pushrods-3-8-xd387","title":"2017+ L5P XDP Street Performance Pushrods (3\/8\") XD387","description":"\u003cp\u003e2017-2024 GM 6.6L Duramax L5P\u003c\/p\u003e\n\u003cp\u003eThe XDP 3\/8 inch Street Performance Pushrods XD387 will strengthen the weak link in the valvetrain of your 2017-2020 GM 6.6L Duramax L5P. The stock pushrods in your Duramax engine can barely handle stock power levels.\u003c\/p\u003e\n\u003cp\u003eWith greater cylinder pressure and valve spring pressures from elevated engine RPM, the additional stress can rapidly push the limits of your factory pushrods. Even in lightly modified builds, the OE pushrods can rob you of power from excessive flexing that is not visible to the naked eye.\u003c\/p\u003e\n\u003cp\u003eIn most cases your pushrods won't show signs of failure before they do, so don't let a bent pushrod cause a complete tear down, upgrade today! The XDP 3\/8 inch Street Performance Pushrods XD387 are manufactured from seamless 4130\/4135 chromoly tube that is cold drawn over a mandrel for superior durability. Each CNC machined tip is constructed from 86L20 bar stock that is triple tempered and core hardened for maximum impact and wear resistance.\u003c\/p\u003e\n\u003cp\u003eThese additional manufacturing processes produce a pushrod that is more resilient and more reliable than your stock pushrods to help you get the most out of your Duramax.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSupports Up To 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, 8.560 inch Overall Length\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"XDP","offers":[{"title":"Default Title","offer_id":47346725388532,"sku":"XD387","price":349.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0798\/9359\/4356\/files\/XD387-HVCD.jpg?v=1767108839"},{"product_id":"xdp-x220-series-head-stud-kit-xd3017hs","title":"2017-2024 L5P XDP X220 Series Head Stud Kit XD3017HS","description":"\u003cp\u003e2017-2024 GM 6.6L Duramax L5P\u003c\/p\u003e\n\u003cp\u003e2 Year Warranty\u003c\/p\u003e\n\u003cp\u003eUpgrade the OEM head bolts on your 2017-2024 GM 6.6L Duramax L5P when you purchase the XDP X220 Series Head Stud Kit XD3017HS. Upgrading the factory head bolts is a must when start adding horsepower and torque to your Silverado\/Sierra.\u003c\/p\u003e\n\u003cp\u003eThe factory bolts typically can't handle the additional pressure in high-performance applications which can lead to the cylinder heads lifting. Upgrading to the XDP head studs helps to keep the cylinder heads locked down and avoid potential head gasket failures.\u003c\/p\u003e\n\u003cp\u003eConstructed using an 8740 Chromoly Steel with an added proprietary element ensures these studs are stronger and will not stretch like the stock bolts. The threads are rolled after heat-treating to deliver maximum fatigue strength.\u003c\/p\u003e\n\u003cp\u003eThese studs are rated at 205,000+ psi yield strength and 225,000+ 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 head bolts with studs also allows you to obtain a more accurate torque reading. A conventional 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. Another benefit of studs is they allow for easier engine assembly and proper alignment of the cylinder heads every time.\u003c\/p\u003e\n\u003cp\u003eThese 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. Included with the studs are washers and 12-point nuts. 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