{"product_id":"comp-cams-camshaft-flathead-283t-h-107","title":"Comp Cams Classic Big Mutha' Thumpr 243\/257 Solid Flat Cam for Flathead Ford 239\/255 - 41-602-7","description":"Comp Cams Classic Big Mutha' Thumpr 243\/257 Solid Flat Cam for Flathead Ford 239\/255 - 41-602-7\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eStreet\/strip, engine modification mandatory, aftermarket heads, very rough idle.\u003cbr\u003eClassic Big Mutha' Thumpr 243\/257 Solid Flat Cam for Flathead Ford 239\/255\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003ePRODUCT NOTES:\u003c\/b\u003e\u003cbr\u003eCamshaft Series - Classic Thumpr \u003cbr\u003eCam Type - Solid Flat Tappet \u003cbr\u003eGrind Number - 295TS7 \u003cbr\u003eBasic Operating RPM Range - 2,200-4,200 R3\u003cbr\u003eIntake Duration at .050 Inch Lift - 243 DD\u003cbr\u003eExhaust Duration at .050 inch Lift - 257 DD\u003cbr\u003eAdvertised Intake Duration - 283 DD\u003cbr\u003eAdvertised Exhaust Duration - 315 DD\u003cbr\u003eLobe Separation - 107 DD\u003cbr\u003eIntake Valve Lift - 0.382 IN\u003cbr\u003eExhaust Valve Lift - 0.378 IN\u003cbr\u003eLifters Included - No \u003cbr\u003eValve Springs Required - Yes \u003cbr\u003eAssembly Lubricant Included - Yes \u003cbr\u003eCamshaft Material - Cast Iron \u003cbr\u003eEngine Family - Flathead Ford (2 Gear) 239, 255 c.i. 8 Cylinder (1949-1953) \u003cbr\u003eCalifornia Proposition 65 - WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov \u003cbr\u003eLifter Type - Solid Flat Tappet \u003cbr\u003eTitle - Classic Big Mutha' Thumpr 243\/257 Solid Flat Cam for Flathead Ford 239\/255 \u003cbr\u003eAmazon ASIN - B005H89W0Y \u003cbr\u003eC.A.R.B. Exempt for Racing and Off-Road Only Vehicles? - Yes, but must be a race\/competition only vehicle. \u003cbr\u003eC.A.R.B. Exempt for Federally Certified Vehicles Manufactured Before 1967? - Yes, but must meet tailpipe emission standards for year of vehicle. \u003cbr\u003eC.A.R.B. Exempt for California Certified Vehicles Manufactured Before 1965? - Yes, but must meet tailpipe emission standards for year of vehicle. \u003cbr\u003eC.A.R.B. Exempt for Foreign Vehicles Manufactured Before 1967? - Yes, but must meet tailpipe emission standards for year of vehicle. \u003cbr\u003eC.A.R.B. Exempt for On-Road Vehicles? - No \u003cbr\u003eC.A.R.B. Exemption Reason - N\/A \u003cbr\u003eC.A.R.B. E.O. Number - N\/A\u003cbr\u003e\u003cbr\u003eLethal Performance is proud to offer the entire line of Comp Cams products!\u003cbr\u003e\u003cbr\u003eFor more than 35 years, the COMP Cams® mission has never changed: to produce the highest-performing products possible, provide customers with superior service, and to lead the industry in technological development. While the COMP Performance Group™ has grown to multiple companies and hundreds of employees, we still retain the competitive spirit and desire to be the very best that has positioned COMP Cams® as the absolute leader in valve train components.\u003cbr\u003e\u003cbr\u003e\nWith COMP Cams®, there is no compromise - you're in first place.","brand":"Comp Cams","offers":[{"title":"Default Title","offer_id":47909834883330,"sku":"CCA41-602-7","price":689.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/0618\/0354\/files\/41-602-7_1.jpg?v=1784975916","url":"https:\/\/www.lethalperformance.com\/products\/comp-cams-camshaft-flathead-283t-h-107","provider":"Lethal Performance","version":"1.0","type":"link"}