{"product_id":"comp-cams-91-601-5-mutha-thumpr-227-241-hydraulic-flat-camshaft-for-buick-364-425-nailhead-engines","title":"COMP Cams 91-601-5 Mutha' Thumpr 227\/241 Hydraulic Flat Camshaft for Buick 364-425 Nailhead Engines","description":"Classic Mutha' Thumpr 227\/241 Hydraulic Flat Cam Buick 364, 401, 425 Nailhead. Street\/strip, needs 9:1 compression, 2500+ stall, intake, Gears and headers, very rough idle.\nHigh performance street\/strip, head modification recommended to raise RPM limit, 2200+ stall, rough idle.\n\u003cp\u003eThe COMP Cams 91-601-5 Mutha' Thumpr hydraulic flat camshaft is engineered for high-performance street and strip applications on Buick Nailhead engines, including 364, 401, and 425 cubic inch displacements. Designed for enthusiasts seeking increased horsepower and torque, this camshaft features a duration of 227\/241 degrees and is optimized for engines with a compression ratio of 9:1 or higher. It requires a stall converter of at least 2500 RPM for optimal performance. The cam's design delivers a rough idle, making it ideal for performance builds that emphasize maximum power output. To achieve the best results, head modifications are recommended to raise the RPM limit, along with upgrades to intake systems, gears, and headers. This ensures the engine can take full advantage of the camshaft's aggressive profile, enhancing both acceleration and overall engine responsiveness.\u003c\/p\u003e\u003cbr\u003e\nFits\u003cbr\u003e\nBuick Century Base 1957\u003cbr\u003e\nBuick Century Base 1958\u003cbr\u003e\nBuick Electra 225 1959\u003cbr\u003e\nBuick Electra 225 1960\u003cbr\u003e\nBuick Electra 225 1961\u003cbr\u003e\nBuick Electra 225 1962\u003cbr\u003e\nBuick Electra Base 1959\u003cbr\u003e\nBuick Electra Base 1960\u003cbr\u003e\nBuick Electra Base 1961\u003cbr\u003e\nBuick Electra Base 1962\u003cbr\u003e\nBuick Electra Base 1963\u003cbr\u003e\nBuick Electra Base 1964\u003cbr\u003e\nBuick Electra Base 1965\u003cbr\u003e\nBuick Electra Base 1966\u003cbr\u003e\nBuick Electra Custom 1966\u003cbr\u003e\nBuick Estate Wagon Base 1959\u003cbr\u003e\nBuick Estate Wagon Base 1960\u003cbr\u003e\nBuick Estate Wagon Base 1961\u003cbr\u003e\nBuick Estate Wagon Base 1962\u003cbr\u003e\nBuick Estate Wagon Base 1963\u003cbr\u003e\nBuick Estate Wagon Base 1964\u003cbr\u003e\nBuick Gran Sport Base 1965\u003cbr\u003e\nBuick Gran Sport Base 1966\u003cbr\u003e\nBuick Invicta Base 1959\u003cbr\u003e\nBuick Invicta Base 1960\u003cbr\u003e\nBuick Invicta Base 1961\u003cbr\u003e\nBuick Invicta Base 1962\u003cbr\u003e\nBuick Invicta Base 1963\u003cbr\u003e\nBuick LeSabre Base 1959\u003cbr\u003e\nBuick LeSabre Base 1960\u003cbr\u003e\nBuick LeSabre Base 1961\u003cbr\u003e\nBuick LeSabre Base 1962\u003cbr\u003e\nBuick LeSabre Base 1963\u003cbr\u003e\nBuick LeSabre Base 1964\u003cbr\u003e\nBuick Limited Base 1958\u003cbr\u003e\nBuick Riviera Base 1963\u003cbr\u003e\nBuick Riviera Base 1964\u003cbr\u003e\nBuick Riviera Base 1965\u003cbr\u003e\nBuick Riviera Base 1966\u003cbr\u003e\nBuick Riviera Gran Sport 1965\u003cbr\u003e\nBuick Riviera Gran Sport 1966\u003cbr\u003e\nBuick Roadmaster 75 1957\u003cbr\u003e\nBuick Roadmaster Base 1957\u003cbr\u003e\nBuick Roadmaster Base 1958\u003cbr\u003e\nBuick Skylark Base 1965\u003cbr\u003e\nBuick Skylark Base 1966\u003cbr\u003e\nBuick Special Base 1957\u003cbr\u003e\nBuick Special Base 1958\u003cbr\u003e\nBuick Super Base 1957\u003cbr\u003e\nBuick Super Base 1958\u003cbr\u003e\nBuick Wildcat Base 1962\u003cbr\u003e\nBuick Wildcat Base 1963\u003cbr\u003e\nBuick Wildcat Base 1964\u003cbr\u003e\nBuick Wildcat Base 1965\u003cbr\u003e\nBuick Wildcat Base 1966\u003cbr\u003e\nBuick Wildcat Custom 1965\u003cbr\u003e\nBuick Wildcat Custom 1966\u003cbr\u003e\nBuick Wildcat Deluxe 1965\u003cbr\u003e\nBuick Wildcat Gran Sport 1966","brand":"COMP Cams","offers":[{"title":"Default Title","offer_id":55148406014257,"sku":"4395069","price":350.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0990\/2247\/1473\/files\/3a213f0581ff480ba1fb54c159f6787d_f73a662a-fa3f-4620-bd49-03755e455b74.jpg?v=1783571912","url":"https:\/\/shop.topspeedcincy.com\/products\/comp-cams-91-601-5-mutha-thumpr-227-241-hydraulic-flat-camshaft-for-buick-364-425-nailhead-engines","provider":"Top Speed Cincy Shop","version":"1.0","type":"link"}