{"product_id":"katech-rhs-block-c5-r-timing-chain","title":"Katech RHS Block C5.R Timing Chain","description":"\u003ch3\u003eKatech RHS Block C5.R Timing Chain\u003c\/h3\u003e \u003cp\u003eDeveloped through Katech’s involvement in professional endurance racing, the \u003cstrong\u003eKatech RHS Block C5.R Timing Chain\u003c\/strong\u003e has demonstrated exceptional durability. Across documented C5.R racing programs and internal durability testing, \u003cstrong\u003eno timing chain failures have been recorded\u003c\/strong\u003e, reinforcing its suitability for demanding LS-based racing applications.\u003c\/p\u003e \u003cp\u003eThis timing chain design is derived from and utilized in Corvette Racing C5.R-based programs, with applications spanning the C5.R and C6.R eras. It has been proven in top-level endurance competition, including the \u003cstrong\u003e24 Hours of Le Mans\u003c\/strong\u003e and \u003cstrong\u003e24 Hours of Daytona\u003c\/strong\u003e.\u003c\/p\u003e \u003cp\u003eThe Katech C5.R race chain is an \u003cstrong\u003eeasy replacement, production-style timing chain\u003c\/strong\u003e that utilizes \u003cstrong\u003eproduction sprockets\u003c\/strong\u003e \u003cem\u003e(not included)\u003c\/em\u003e. Unlike typical double-roller race chains, this design \u003cstrong\u003edoes not require oil pump clearancing\u003c\/strong\u003e when used with a production-style oil pump.\u003c\/p\u003e \u003cp\u003eCompared to standard aftermarket IWIS LS timing chains, the Katech C5.R chain incorporates \u003cstrong\u003eproprietary enhancements\u003c\/strong\u003e, including \u003cstrong\u003efine-blanked chain plates\u003c\/strong\u003e and a \u003cstrong\u003eKatech-specified proprietary pin coating\u003c\/strong\u003e, improving fatigue resistance, wear characteristics, and long-term timing stability under sustained high-RPM operation.\u003c\/p\u003e \u003cp\u003eEach genuine \u003cstrong\u003eKatech RHS Block C5.R Timing Chain\u003c\/strong\u003e is \u003cstrong\u003elaser-engraved with the Katech logo\u003c\/strong\u003e for positive identification. This marking confirms the component as a \u003cstrong\u003eKatech-exclusive offering\u003c\/strong\u003e, developed from Katech’s C5.R racing experience and supplied by Katech Engineering directly and through authorized distribution channels.\u003c\/p\u003e \u003chr\u003e \u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eDesigned for RHS LS-Based Blocks\u003c\/strong\u003e\u003cbr\u003e Engineered specifically to match \u003cstrong\u003eRHS block raised camshaft timing geometry.\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHigh-Strength Chain Construction\u003c\/strong\u003e\u003cbr\u003e Built to withstand \u003cstrong\u003ehigh RPM, aggressive cam profiles, and elevated valve-spring loads\u003c\/strong\u003e.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePrecision Camshaft Timing Control\u003c\/strong\u003e\u003cbr\u003e Maintains accurate cam timing under load, minimizing stretch and timing deviation.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRace-Validated Design\u003c\/strong\u003e\u003cbr\u003e Derived from Katech’s \u003cstrong\u003eprofessional motorsports and endurance racing experience\u003c\/strong\u003e.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIdeal for Competition \u0026amp; High-Performance Builds\u003c\/strong\u003e\u003cbr\u003e Suitable for road race, endurance, track-day, and high-output LS applications.\u003c\/li\u003e \u003c\/ul\u003e \u003chr\u003e \u003ch3\u003eTechnical Overview\u003c\/h3\u003e \u003cp\u003eThis timing chain is optimized for \u003cstrong\u003eRHS LS-based raised camshaft engine blocks\u003c\/strong\u003e, ensuring correct engagement with the crank and cam sprockets while maintaining proper tension and alignment. The design prioritizes \u003cstrong\u003estrength, fatigue resistance, and dimensional stability\u003c\/strong\u003e to support demanding race environments and extended high-RPM operation.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eNOTE |\u003c\/strong\u003e Proper installation, sprocket compatibility, and timing verification are critical.\u003c\/p\u003e \u003chr\u003e \u003ch3\u003eEngine \u0026amp; Block Fitment\u003c\/h3\u003e \u003cp\u003e\u003cstrong\u003eCompatible Engine Blocks\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eRHS LS-Based Engine Blocks with .388 raised camshaft position\u003c\/li\u003e \u003cli\u003eDart LS-Based Engine Blocks with .388 raised camshaft position\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eEngine Applications\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eHigh-Performance LS-Based Racing Engines\u003c\/li\u003e \u003cli\u003eRoad Racing and Endurance Racing Engines\u003c\/li\u003e \u003cli\u003eNaturally Aspirated and Forced-Induction Competition Engines\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eImportant Fitment Notes\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eThis is a 62-link timing chain designed for RHS and Dart LS-based engine blocks with a raised camshaft position.\u003c\/li\u003e \u003cli\u003eNot compatible with standard production LS engine block timing geometry.\u003c\/li\u003e \u003cli\u003eDesigned for use with compatible production-style crankshaft and camshaft timing sprockets (not included).\u003c\/li\u003e \u003cli\u003eDoes not require oil pump clearancing when used with a compatible production-style oil pump.\u003c\/li\u003e \u003cli\u003eVerify engine block configuration, timing sprocket compatibility, and timing system geometry before ordering.\u003c\/li\u003e \u003c\/ul\u003e \u003chr\u003e \u003ch3\u003eWhy Choose Katech?\u003c\/h3\u003e \u003cp\u003eSince 1977, Katech has been trusted by racers, OEM programs, and performance enthusiasts for \u003cstrong\u003eengineering-driven solutions\u003c\/strong\u003e that perform under real-world race conditions. Every component reflects our commitment to \u003cstrong\u003eprecision machining, rigorous validation, and race-winning reliability\u003c\/strong\u003e.\u003c\/p\u003e \u003cp\u003eDesigned by \u003cstrong\u003eKatech Engineering in Clinton Township, Michigan\u003c\/strong\u003e, this timing chain represents decades of motorsports experience applied to modern high-performance engine builds.\u003c\/p\u003e \u003cp\u003e \u003cimg src=\"..\/files\/prop-65-warning.png\" alt=\"California Proposition 65 Warning\" width=\"200\"\u003e \u003c\/p\u003e","brand":"Katech","offers":[{"title":"Default Title","offer_id":47875039527068,"sku":"KAT-7637","price":279.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0473\/3206\/5436\/files\/M198644856.png?v=1792260724","url":"https:\/\/daroracing.com\/products\/katech-rhs-block-c5-r-timing-chain","provider":"Daro Racing","version":"1.0","type":"link"}