{"product_id":"comp-cams-21-243-4","title":"COMP Cams 21-243-4 Magnum 253\/253 Hydraulic Flat Cam for Chrysler 383-440","description":"\u003cp\u003e\u003cem\u003ePro Street. 383 needs 3500-3700+ stall. 440 needs 3000-3300+ stall. 850 CFM carb, 10:1+ compression. Headers and good int, 3.90-4.30 gear.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eAn older member of the COMP Cams grind family, the Magnum series of camshafts offers excellent performance gains over stock without the added wear and tear associated with more aggressive camshafts. Ideal for use with higher compression ratio engines that need to bleed off compression, the magnum series performs its best when static compression is 9.5:1+ and with an aftermarket higher stall torque converter. Delivering excellent high RPM power, while not needlessly abusing valve train parts, the Magnum grind family is the perfect choice for performance engines equipped with mild ratio rocker arms and traditional performance valve springs.\u003c\/p\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCamshaft Series\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMagnum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUsage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStreet\/Strip\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCam Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHydraulic Flat Tappet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGrind Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e305H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBasic Operating RPM Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3,500-6,500 R3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIntake Duration at .050 Inch Lift\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e253 DD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eExhaust Duration at .050 inch Lift\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e253 DD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAdvertised Intake Duration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e305 DD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAdvertised Exhaust Duration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e305 DD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLobe Separation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e110 DD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIntake Valve Lift\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.525 IN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eExhaust Valve Lift\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.525 IN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLifters Included\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eValve Springs Required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAssembly Lubricant Included\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCamshaft Gear Attachment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1-Bolt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCamshaft Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCast Iron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eK-Kit Upgrade\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eK21-243-4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLifter Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHydraulic Flat Tappet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine Family\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eChrysler 383-440 c.i. 8 Cylinder (1959-1980)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSK-Kit Upgrade\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSK21-243-4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCam and Lifter Kit Upgrade\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCL21-243-4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGrind Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e305H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003chr\u003e\u003cp class=\"prop65-warning\"\u003e\u003cstrong\u003e⚠️ California Proposition 65 Warning\u003c\/strong\u003e\u003cbr\u003eCalifornia Residents: This product can expose you to chemicals which are known to the State of California to cause cancer or other reproductive harm. Please visit www.p65warnings.ca.gov for more information.\u003c\/p\u003e\n\u003cp class=\"warranty\"\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 12 Months\u003c\/p\u003e","brand":"COMP Cams","offers":[{"title":"Default Title","offer_id":45943859871788,"sku":"21-243-4","price":309.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/6007\/6332\/files\/21-243-4.jpg?v=1786323852","url":"https:\/\/carpartglobal.com\/products\/comp-cams-21-243-4","provider":"Car Part Global","version":"1.0","type":"link"}