{"product_id":"comp-cams-camshaft-cb-xr300hr-10-cca11-444-8","title":"COMP Cams Camshaft CB XR300HR-10 - cca11-444-8","description":"*Xtreme Energy Camshafts*  * Quicker opening lobe profiles deliver increased responsiveness \u0026amp; more area under the lift curve  * More vacuum allows an increase in duration for improved performance and assists power brakes  * Excellent performance in street carbureted applications    * Best performance with aftermarket intake manifolds, headers, lower gear ratios, etc. PartNumber : cca11-444-8 Description : Xtreme Energy Camshaft Title : 11-444-8 CamShaft, CB XR300HR-10 Cam Type : Hydraulic Roller Camshaft Gear Attachment : 3-Bolt Camshaft Material : Austempered Ductile Iron Camshaft Series : Xtreme Energy Engine Family : Chevrolet 396-454 c.i. 8 Cylinder (1967-1996) Exhaust Duration at .050 inch Lift : 254 Exhaust Valve Lift : 0.58 Grind Number : XR300HR Intake Duration at .050 Inch Lift : 248 Intake Valve Lift : 0.56 Lifter Style : Hydraulic Roller Lifters Included : No Lobe Separation : 110 Usage : Street\/Performance Valve Springs Required : Yes Advertised Exhaust Duration : 306 Advertised Intake Duration : 300 Assembly Lubricant Included : No Basic Operating RPM Range : 3200-6,200 California Proposition 65 : WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov Cam and Lifter Kit Upgrade : CL11-444-8 K-Kit Upgrade : K11-444-8 SK-Kit Upgrade : SK11-444-8 Exhaust Duration @ .050 in. : 254 Intake Valve Lift(in) : 0.560 Exhaust Valve Lift(in) : 0.58 Intake Duration : 300 Exhaust Duration : 306 Intake Duration @ .050 in. : 248 Lifter Type : Hydraulic Roller RPM Range : 3000-9000   Engine Components::Camshafts ","brand":"COMP Cams","offers":[{"title":"Default Title","offer_id":42580416168191,"sku":"","price":416.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0630\/1106\/2015\/products\/1ce4ab29799b8a7776d4a55a2b573f1b__97626.jpg?v=1647911243","url":"https:\/\/aristocrat-autosport-llc.myshopify.com\/products\/comp-cams-camshaft-cb-xr300hr-10-cca11-444-8","provider":"Aristocrat Autosport ","version":"1.0","type":"link"}