{"product_id":"cca12-408-8","title":"COMP Cams Camshaft CS XR258HR-10","description":"\u003cp\u003eSKU: 12-408-8 Xtreme Energy™ 206\/212 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.\u003cbr\u003e\nXtreme Energy™\u003cbr\u003e\nBenefits:\u003cbr\u003e\nQuicker 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\u003cbr\u003e\nImportant Considerations:\u003cbr\u003e\nWork best with COMP Cams® roller rockers and matched valve springs Require other performance parts (intake manifold, headers, etc.) for best performance\u003cbr\u003e\nDyno Results\u003cbr\u003e\nCamshaft Part #12-408-8Grind #XR258HR-10\u003cbr\u003e\nDuration @ 0.006\":258° \/ 264°Duration @ 0.050\":206° \/ 212°\u003cbr\u003e\nMax Lift w\/ 1.5RR: .480\" \/ .487\"Lobe Separation:110°\u003cbr\u003e\nLobe ID#'s:3311 \/ 3312Intake Centerline:106°\u003cbr\u003e\nEngine Type:Chevrolet 350 Small Block\u003cbr\u003e\nBore:4.040\"Stroke:3.480\"\u003cbr\u003e\nDisplacement:356ciCompression:9.25:1\u003cbr\u003e\nHeads:Dart S\/RIntake:Edelbrock Performer\u003cbr\u003e\nCarburetor:Holley #3310 Vac. Sec.Exhaust:1 5\/8\" Headers\u003cbr\u003e\nMax Torque:413 ft*lbs @ 3700 RPMMax Power:325 HP @ 4400 RPM\u003cbr\u003e\nManifold Vacuum:17\" Hg @ 800 RPM \u0026amp; 18\" Hg @ 1000 RPM w\/ no load.\u003c\/p\u003e","brand":"COMP Cams","offers":[{"title":"Default Title","offer_id":41362209308785,"sku":"cca12-408-8","price":786.43,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1088\/6742\/files\/12-000-8_9_475_1.jpg?v=1735097011","url":"https:\/\/www.parkautomotorsports.ca\/products\/cca12-408-8","provider":"Park Auto Motorsports","version":"1.0","type":"link"}