{"product_id":"comp-cams-camshaft-a8-291thr7-thumper-cca10-601-11","title":"COMP Cams Camshaft A8 291THR7 Thumper - cca10-601-11","description":"*Thumpr Camshafts*  * Three unique cam designs for each application that deliver excellent horsepower gains and broad torque curve; perfect choice for muscle cars and street rods  * Early intake valve opening and long exhaust duration create optimum overlap for powerful, hard-hitting exhaust note  * Best with aftermarket converters and more rear gear PartNumber : cca10-601-11 Description : Mutha Thumpr Camshaft Title : 10-601-11 CamShaft, A8 291THR7 THUMPR Advertised Exhaust Duration : 311 Advertised Intake Duration : 291 Assembly Lubricant Included : No Basic Operating RPM Range : 2,200-6,100 California Proposition 65 : WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov Cam Type : Hydraulic Roller Camshaft Gear Attachment : 1-Bolt Camshaft Material : Billet Steel Camshaft Series : Thumpr Engine Family : American Motors 290-401 c.i. 8 Cylinder (1966-1991) Exhaust Duration at .050 inch Lift : 249 Exhaust Valve Lift : 0.526 Grind Number : 291THR7 Intake Duration at .050 Inch Lift : 235 Intake Valve Lift : 0.54 Lifter Style : Hydraulic Roller Lifters Included : No Lobe Separation : 107 Usage : Street\/Performance Valve Springs Required : Yes Exhaust Duration @ .050 in. : 249 Intake Duration @ .050 in. : 235 Intake Valve Lift(in) : 0.540 Exhaust Valve Lift(in) : 0.526 RPM Range : 2200-6100 Intake Duration : 291 Lifter Type : Hydraulic Roller Retrofit Exhaust Duration : 311   Engine Components::Camshafts ","brand":"COMP Cams","offers":[{"title":"Default Title","offer_id":42580410106111,"sku":"","price":522.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0630\/1106\/2015\/products\/635494a79f105fe09f60611e56dc7c94__01995.jpg?v=1647910957","url":"https:\/\/aristocrat-autosport-llc.myshopify.com\/products\/comp-cams-camshaft-a8-291thr7-thumper-cca10-601-11","provider":"Aristocrat Autosport ","version":"1.0","type":"link"}