{"product_id":"comp-cams-ford-small-block-camshaft-fs-291th-hr07-thumpr-31-601-9","title":"COMP Cams Ford Small Block Camshaft FS 291TH HR07 Thumpr 31-601-9","description":"\u003cp\u003eCCA Camshaft Kits\u003c\/p\u003e\u003cp\u003eEngine Camshaft\u003c\/p\u003e\u003cp\u003eThe COMP Cams Xtreme Energy camshaft delivers enhanced street performance for Ford Small Block engines, providing very strong torque and horsepower gains with a smooth idle and responsive throttle—ideal for mild performance upgrades and heavier vehicle applications. Engineered for excellent low- to mid-range power, it works best with proven combinations such as the Edelbrock Performer intake manifold and a TCI Street Rodder or stock torque converter for reliable drivability. Featuring full-size base circles, this camshaft works seamlessly with COMP Cams Evolution hydraulic roller tappets and eliminates the need for dog bones and lifter retainers—components never intended for pre-1985 applications. This camshaft supersedes part number 31-601-8, delivering a dependable upgrade for improved performance and everyday usability.\u003c\/p\u003e\u003cp\u003eThe COMP Cams Mutha Thumpr series delivers aggressive street\/strip performance for Ford Small Block engines, producing a rough lopey idle, strong midrange power, and sharp throttle response. Ideal for 9:1 compression combos with headers.\u003c\/p\u003e","brand":"COMP Cams","offers":[{"title":"Default Title","offer_id":49703640596632,"sku":"9KKEM","price":562.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0564\/0867\/0360\/files\/33b82b51defd5c845e78b34f00e9bf9fL_e9e90473-3bc7-4556-bef8-fbe838bc777b.jpg?v=1787026872","url":"https:\/\/frsport.com\/products\/comp-cams-ford-small-block-camshaft-fs-291th-hr07-thumpr-31-601-9","provider":"FR SPORT","version":"1.0","type":"link"}