{"product_id":"comp-cams-camshaft-cs-xr276hr-10","title":"COMP Cams Camshaft CS XR276HR-10","description":"\u003cp\u003eXtreme Energy 224\/230 Hydraulic Roller Cam for Chevy Small Block. Very strong torque with excellent mileage and a smooth idle. Xtreme Energy Cams bridge the gap between Magnum street cams and race only cams. Xtreme Energy Cams provide increased torque, vacuum, response, and power while still providing quiet operation of the valve train and the durability required in daily driven vehicles. Xtreme Energy Benefits:Quicker opening lobe profiles deliver increased responsiveness \u0026amp; more area under the lift curve. More vacuum allows a step up in duration for greater performance. Best seller. excellent all around performance in street carbureted applications. Important Considerations: Works best with COMP Cams roller rockers and matched valve springs. Requires other performance parts (intake manifold, headers, etc.) for best performance. Camshaft Part #12-423-8 Grind #XR276HR-10. Duration @ 0.006\": 276\/ 282deg. Duration @ 0.050\": 224\/ 230deg. Max Lift w\/ 1.5RR: .502\" \/ .510\". Lobe Separation: 110deg Lobe ID#'s: 3314 \/ 3315. Intake Centerline:106deg. Engine Type: Chevrolet 350 Small Block. Bore: 4.040\". Stroke: 3.480\". Displacement: 356ci. Compression: 9.25:1. Heads: Dart S\/R. Intake: Edelbrock performer. Carburetor: Holley  #3310 Vac. Sec. Exhaust: 1 5\/8\" Headers. Max Torque: 427 ft\/lbs @ 3700 RPM. Max Power: 373 HP @ 5200 RPM. Manifold Vacuum: 12\" Hg @ 800 RPM \u0026amp; 14\" Hg @ 1000 RPM w\/ no load.\n\u003cbr\u003eHigh performance street machines, 2000+ stall, gears, choppy idle.\n\u003cbr\u003eFits Chevrolet GEN 1 Small Blocks including the 262, 265, 267, 283, 302, 305, 307, 327, 350 and 400. Does not fit LT1\/LT4, or factory roller Small Blocks built from 1985 and newer. GM gradually added roller camshafts to 305's and 350's from the mid 80's forward. Camaros\/Firebirds\/Corvettes received the roller cams early, but many trucks and SUV's had flat tappet cams until the mid 90's. Remove the intake or timing cover to confirm whether the block is a factory roller or flat tappet. Does not fit the LS1, LS2, LS3 or any LS-based 4.8, 5.3, 5.7, 6.0 and 6.2. 1955-1957 Chevrolet 265 engines require a groove on the 5th cam journal for oiling. Contact us for more information.\u003c\/p\u003e\u003cstyle\u003etable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }\u003c\/style\u003e\n\u003ctable class=\"productattributes\"\u003e\n\u003cthead\u003e\u003ctr\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbdoy\u003e\n\u003ctr\u003e\u003ctd\u003eAir Freight Prohibited: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eNot Carb Approved: true\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eCarb Acknowledgement Required: true\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eLtl Freight Required: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eProp 65: Y\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003ePart Type: automotive\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eEpa: N\/A\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eRegular Stock: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eUnits Per Sku: 1\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbdoy\u003e\n\u003c\/table\u003e\u003cbr\u003e","brand":"COMP Cams","offers":[{"title":"Default Title","offer_id":46910380245145,"sku":"cca12-423-8","price":549.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0714\/2611\/3689\/files\/3543ac391dcc968ba09f48dfab8a33a0_a8a79720-18c4-4179-88cb-b4174015cadc.jpg?v=1774793077","url":"https:\/\/msvracingpowersports.com\/products\/comp-cams-camshaft-cs-xr276hr-10","provider":"MSV Racing","version":"1.0","type":"link"}