Complete kit used to upgrade the early 99-06 mechanical chain tensioners to the later 07-17 style hydraulic cam chain tensioners. Works with the OEM camshafts. Kit includes the needed components to upgrade early ''99-''06 style mechanical spring tensioners cam chain drive systems to the late ''07-''17 hydraulic cam chain drive system using a hybrid cam plate. This kit include a FEULING HP+ billet oil pump; High Flow cam plate; HP+ Lifters; FEULING''S billet hydraulic tensioner housings; tensioner pads; cam chains; sprockets; sprocket alignment spacers; TIMKEN/FEULING bearings; needed gaskets; O-rings; ARP cam and crank hardware; Loctite and moly lube.Note: Rocker box gasket kit included so the factory one piece pushrods can be re-used. For Delphi equipped ignition system engines running the 34 tooth rear cam sprocket without the timing tab.Kit designed to run the factory ''00-''06 style splined chain drive camshafts - Will NOT work on keyway camshafts or with conversion camshafts. Will NOT work on keyway camshafts or with conversion camshaftsSee Feuling 588052 for replacement billet rocker box breather assemblies and or 707311 and 707312 if looking to upgrade to heavy duty one piece pushrods.