{"product_id":"katech-gen-v-lt-427-track-attack-camshaft","title":"Katech Gen V LT 427 Track Attack Camshaft","description":"\u003ch2\u003eKatech Gen V LT 427 Track Attack Camshaft\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003e\u003cem\u003eLT 427 Performance Camshaft Engineering Optimized for 12.5:1 or Higher Compression and the MSD Atomic Intake Manifold.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e \u003chr\u003e \u003cp\u003eThe Katech Gen V LT 427 Track Attack Camshaft is optimized for performance engine combinations using 12.5:1 or higher compression ratios and the MSD Atomic Intake Manifold. Its profile features 242°\/258° duration at .050\", .648\"\/.639\" valve lift with a 1.80:1 rocker ratio, a 113° lobe separation angle, and +2.5° camshaft advance.\u003c\/p\u003e \u003cp\u003eThis camshaft features an 11% fuel pump lobe with 6.5mm fuel lobe lift. Supporting valvetrain components, fuel system configuration, and ECU calibration should be matched to the completed engine combination.\u003c\/p\u003e \u003cp\u003eAftermarket pistons with larger valve reliefs are required. Piston-to-valve clearance must be verified during installation. Fuel pump preload should be checked on all applications, with particular attention to LT2 builds.\u003c\/p\u003e \u003cp\u003eFinal power, idle quality, driveability, and operating range depend on displacement, compression ratio, cylinder heads, intake and exhaust systems, fuel, and calibration.\u003c\/p\u003e \u003chr\u003e \u003ch3\u003eFeatures \u0026amp; Benefits\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLT 427 Performance Application:\u003c\/strong\u003e Developed for Appropriately Configured Gen V LT Engine Builds\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e12.5:1 or Higher Compression:\u003c\/strong\u003e Optimized for High-Compression Engine Combinations\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e242°\/258° Duration at .050\":\u003c\/strong\u003e Intake and Exhaust Duration Specifications\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e.648\"\/.639\" Valve Lift:\u003c\/strong\u003e Specified with a 1.80:1 Rocker Ratio\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e113° Lobe Separation Angle:\u003c\/strong\u003e With +2.5° Specified Camshaft Advance\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e11% Fuel Pump Lobe:\u003c\/strong\u003e Features 6.5mm Fuel Lobe Lift\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOptron Spin Cell Development:\u003c\/strong\u003e Valve Motion Analysis Supports Katech's Valvetrain Engineering Process\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRacing Heritage Since 1977:\u003c\/strong\u003e Decades of Performance Engine and Valvetrain Development Experience\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cimg src=\"\/files\/images\/katech-made-in-america.png\" alt=\"Proudly Made in America\" width=\"300\"\u003e\u003c\/p\u003e \u003chr\u003e \u003ch3\u003eTechnical Specifications\u003c\/h3\u003e \u003ctable\u003e \u003ctbody\u003e \u003ctr\u003e \u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e \u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eIntake Duration @ .050\"\u003c\/td\u003e \u003ctd\u003e242°\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eExhaust Duration @ .050\"\u003c\/td\u003e \u003ctd\u003e258°\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eIntake Valve Lift\u003c\/td\u003e \u003ctd\u003e.648\" with 1.80:1 Rocker Ratio\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eExhaust Valve Lift\u003c\/td\u003e \u003ctd\u003e.639\" with 1.80:1 Rocker Ratio\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eSpecified Rocker Ratio\u003c\/td\u003e \u003ctd\u003e1.80:1\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eIntake Lobe Lift\u003c\/td\u003e \u003ctd\u003e.360\"\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eExhaust Lobe Lift\u003c\/td\u003e \u003ctd\u003e.355\"\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eLobe Separation Angle\u003c\/td\u003e \u003ctd\u003e113°\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eSpecified Camshaft Advance\u003c\/td\u003e \u003ctd\u003e+2.5°\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eFuel Pump Lobe\u003c\/td\u003e \u003ctd\u003e11%\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eFuel Pump Lobe Lift\u003c\/td\u003e \u003ctd\u003e6.5mm\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eEngine Platform\u003c\/td\u003e \u003ctd\u003eGen V LT\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eOptimized Compression Ratio\u003c\/td\u003e \u003ctd\u003e12.5:1 or Higher\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003ePiston Requirement\u003c\/td\u003e \u003ctd\u003eAftermarket Pistons with Larger Valve Reliefs\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003chr\u003e \u003ch3\u003eSuggested Valvetrain\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eValve Springs:\u003c\/strong\u003e PSI1516 or PSI1512 Valve Springs\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eLifters:\u003c\/strong\u003e Katech\/Johnson 2116LSR Lifters\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSpring Locators:\u003c\/strong\u003e Katech Spring Locators\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRetainers:\u003c\/strong\u003e Katech Tool Steel or Titanium Valve Spring Retainers\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eContact Katech Technical Sales to confirm the specific spring, lifter, and supporting valvetrain combination for your cylinder heads and intended operating range.\u003c\/p\u003e \u003chr\u003e \u003ch3\u003eFitment\u003c\/h3\u003e \u003cp\u003e\u003cstrong\u003eChevrolet \/ General Motors:\u003c\/strong\u003e Appropriately Configured Gen V LT Engine Builds, Including LT 427 Performance Combinations.\u003c\/p\u003e \u003cp\u003eAftermarket pistons with larger valve reliefs are required. Confirm piston-to-valve clearance, fuel pump compatibility, and supporting component requirements for the completed engine.\u003c\/p\u003e \u003cp\u003eContact Katech Technical Sales to confirm suitability for your specific engine and vehicle configuration before ordering.\u003c\/p\u003e \u003chr\u003e \u003ch3\u003eImportant Installation Notes\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePiston Selection:\u003c\/strong\u003e Aftermarket Pistons with Larger Valve Reliefs Are Required\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePiston-to-Valve Clearance:\u003c\/strong\u003e Must Be Checked for the Completed Engine Combination\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFuel Pump Preload:\u003c\/strong\u003e Check on All Applications, with Particular Attention to LT2 Builds\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCamshaft Timing:\u003c\/strong\u003e Verify Installed Timing Against the Cam Card\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVVT Configuration:\u003c\/strong\u003e Confirm the Appropriate Lockout or Delete Arrangement with Katech Technical Sales\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eValvetrain Setup:\u003c\/strong\u003e Verify Valve Spring Suitability, Installed Height, Coil Bind Clearance, and Retainer-to-Seal Clearance\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePushrod Length \u0026amp; Lifter Preload:\u003c\/strong\u003e Verify During Installation\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFuel Selection:\u003c\/strong\u003e Match Fuel and Calibration to the Engine's Compression Ratio and Operating Conditions\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eECU Calibration:\u003c\/strong\u003e Match the Calibration to the Katech Gen V LT 427 Track Attack Camshaft and Supporting Components\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eProfessional Installation:\u003c\/strong\u003e Recommended for Proper Setup and Verification\u003c\/li\u003e \u003c\/ul\u003e \u003chr\u003e \u003ch3\u003eWhy Choose Katech\u003c\/h3\u003e \u003cp\u003eThe Katech Gen V LT 427 Track Attack Camshaft is intended for a deliberate engine combination: increased compression, an appropriate intake manifold, and pistons that provide the required valve clearance. Selecting those components together is central to getting the intended performance from the build.\u003c\/p\u003e \u003cp\u003eKatech combines racing engine development experience with Optron Spin Cell valve motion analysis to evaluate how the camshaft and supporting valvetrain work together. That approach helps guide component selection beyond duration and lift alone.\u003c\/p\u003e \u003cp\u003eKatech Technical Sales can help review your compression ratio, cylinder heads, piston configuration, and intake system to determine whether the Katech Gen V LT 427 Track Attack Camshaft is appropriate for your engine.\u003c\/p\u003e \u003chr\u003e \u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e The image shown is for \u003cstrong\u003eillustrative purposes only\u003c\/strong\u003e and may not be an exact representation of the actual product.\u003c\/p\u003e \u003cp\u003e\u003cimg src=\"\/files\/prop-65-warning.jpg\" alt=\"Prop 65 Warning\"\u003e\u003c\/p\u003e","brand":"Katech","offers":[{"title":"Default Title","offer_id":47875135537308,"sku":"KAT-7939","price":499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0473\/3206\/5436\/files\/M198643844.png?v=1792260888","url":"https:\/\/daroracing.com\/products\/katech-gen-v-lt-427-track-attack-camshaft","provider":"Daro Racing","version":"1.0","type":"link"}