{"product_id":"comp-cams-big-mutha-thumpr-243-257-hydraulic-flat-cam-for-buick-400-430-455-street-strip-performance-camshaft","title":"COMP Cams Big Mutha' Thumpr 243\/257 Hydraulic Flat Cam for Buick 400, 430, 455 - Street\/Strip Performance Camshaft","description":"Big Mutha' Thumpr 243\/257 Hydraulic Flat Cam for Buick 400, 430, 455. Street\/strip, needs 9.5:1 compression, 2800+ stall, intake, Gears and headers, very rough idle.\nStreet\/strip, needs 9.5:1compression, 2800+ stall, intake, gears and headers, very rough idle.\n\u003cp\u003eThe COMP Cams Big Mutha' Thumpr 243\/257 hydraulic flat camshaft is engineered for high-performance street and strip applications on Buick engines, including the 400, 430, and 455 cubic inch models. Designed to deliver a rough idle and strong power at higher RPMs, this camshaft is ideal for enthusiasts seeking aggressive performance. It requires a minimum of 9.5:1 compression ratio and is compatible with setups featuring intake, gears, and headers for optimal results. The cam's specifications support a stall converter of 2800 RPM or higher, making it suitable for modified and heavily tuned engines. Built with precision, this camshaft enhances torque and horsepower, providing a noticeable upgrade over stock components. Installation should be performed with proper consideration of valvetrain components and tuning adjustments to maximize performance and reliability.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eHydraulic flat camshaft design for smooth operation and durability\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eOptimized for street and strip use with aggressive power characteristics\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eRequires minimum 9.5:1 compression ratio for optimal performance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eSupports high stall converters of 2800 RPM or higher\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eCompatible with intake, gears, and headers for enhanced engine output\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eDesigned for Buick engines including 400, 430, and 455 cubic inches\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eProvides a rough idle characteristic for a performance sound\u003c\/li\u003e\u003c\/ul\u003e\u003cbr\u003e\nFits\u003cbr\u003e\nBuick Centurion Base 1971\u003cbr\u003e\nBuick Centurion Base 1972\u003cbr\u003e\nBuick Centurion Base 1973\u003cbr\u003e\nBuick Century Base 1973\u003cbr\u003e\nBuick Century Base 1974\u003cbr\u003e\nBuick Century Luxus 1973\u003cbr\u003e\nBuick Century Luxus 1974\u003cbr\u003e\nBuick Electra 225 1968\u003cbr\u003e\nBuick Electra 225 1969\u003cbr\u003e\nBuick Electra 225 1970\u003cbr\u003e\nBuick Electra 225 1971\u003cbr\u003e\nBuick Electra 225 1972\u003cbr\u003e\nBuick Electra 225 1973\u003cbr\u003e\nBuick Electra 225 1974\u003cbr\u003e\nBuick Electra 225 1976\u003cbr\u003e\nBuick Electra 225 Custom 1968\u003cbr\u003e\nBuick Electra 225 Custom 1969\u003cbr\u003e\nBuick Electra 225 Custom 1970\u003cbr\u003e\nBuick Electra 225 Custom 1971\u003cbr\u003e\nBuick Electra 225 Custom 1972\u003cbr\u003e\nBuick Electra 225 Custom 1973\u003cbr\u003e\nBuick Electra 225 Custom 1974\u003cbr\u003e\nBuick Electra 225 Limited 1974\u003cbr\u003e\nBuick Electra Base 1967\u003cbr\u003e\nBuick Electra Base 1973\u003cbr\u003e\nBuick Electra Custom 1975\u003cbr\u003e\nBuick Electra Limited 1975\u003cbr\u003e\nBuick Electra Limited 1976\u003cbr\u003e\nBuick Estate Wagon Base 1970\u003cbr\u003e\nBuick Estate Wagon Base 1971\u003cbr\u003e\nBuick Estate Wagon Base 1972\u003cbr\u003e\nBuick Estate Wagon Base 1973\u003cbr\u003e\nBuick Estate Wagon Base 1974\u003cbr\u003e\nBuick Estate Wagon Base 1975\u003cbr\u003e\nBuick Estate Wagon Base 1976\u003cbr\u003e\nBuick Gran Sport Base 1967\u003cbr\u003e\nBuick GS 400 Base 1968\u003cbr\u003e\nBuick GS 400 Base 1969\u003cbr\u003e\nBuick GS 455 Base 1970\u003cbr\u003e\nBuick GS 455 Base 1971\u003cbr\u003e\nBuick GS 455 Base 1972\u003cbr\u003e\nBuick LeSabre Base 1970\u003cbr\u003e\nBuick LeSabre Base 1971\u003cbr\u003e\nBuick LeSabre Base 1972\u003cbr\u003e\nBuick LeSabre Base 1973\u003cbr\u003e\nBuick LeSabre Base 1974\u003cbr\u003e\nBuick LeSabre Base 1975\u003cbr\u003e\nBuick LeSabre Custom 1970\u003cbr\u003e\nBuick LeSabre Custom 1971\u003cbr\u003e\nBuick LeSabre Custom 1972\u003cbr\u003e\nBuick LeSabre Custom 1973\u003cbr\u003e\nBuick LeSabre Custom 1975\u003cbr\u003e\nBuick LeSabre Custom 1976\u003cbr\u003e\nBuick LeSabre Luxus 1974\u003cbr\u003e\nBuick Regal Base 1973\u003cbr\u003e\nBuick Regal Base 1974\u003cbr\u003e\nBuick Riviera Base 1967\u003cbr\u003e\nBuick Riviera Base 1968\u003cbr\u003e\nBuick Riviera Base 1969\u003cbr\u003e\nBuick Riviera Base 1970\u003cbr\u003e\nBuick Riviera Base 1971\u003cbr\u003e\nBuick Riviera Base 1972\u003cbr\u003e\nBuick Riviera Base 1973\u003cbr\u003e\nBuick Riviera Base 1974\u003cbr\u003e\nBuick Riviera Base 1975\u003cbr\u003e\nBuick Riviera Base 1976\u003cbr\u003e\nBuick Riviera GS 1975\u003cbr\u003e\nBuick Riviera Sport 1976\u003cbr\u003e\nBuick Riviera SR 1976\u003cbr\u003e\nBuick Skylark Base 1967\u003cbr\u003e\nBuick Skylark Base 1968\u003cbr\u003e\nBuick Skylark Base 1970\u003cbr\u003e\nBuick Skylark Base 1971\u003cbr\u003e\nBuick Skylark Custom 1968\u003cbr\u003e\nBuick Skylark Custom 1970\u003cbr\u003e\nBuick Skylark Custom 1971\u003cbr\u003e\nBuick Sportwagon Base 1968\u003cbr\u003e\nBuick Sportwagon Base 1969\u003cbr\u003e\nBuick Sportwagon Base 1970\u003cbr\u003e\nBuick Sportwagon Custom 1968\u003cbr\u003e\nBuick Wildcat Base 1967\u003cbr\u003e\nBuick Wildcat Base 1968\u003cbr\u003e\nBuick Wildcat Base 1969\u003cbr\u003e\nBuick Wildcat Custom 1968\u003cbr\u003e\nBuick Wildcat Custom 1969\u003cbr\u003e\nBuick Wildcat Custom 1970\u003cbr\u003e\nPontiac Catalina Base 1972\u003cbr\u003e\nPontiac Catalina Brougham 1972\u003cbr\u003e\nPontiac Catalina Safari 1972","brand":"COMP Cams","offers":[{"title":"Default Title","offer_id":55147447288113,"sku":"4395182","price":350.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0990\/2247\/1473\/files\/5646b520ac3b3b38aa88767ea417fe84_a675c167-a586-4039-9089-bba2298f3252.jpg?v=1783571295","url":"https:\/\/shop.topspeedcincy.com\/products\/comp-cams-big-mutha-thumpr-243-257-hydraulic-flat-cam-for-buick-400-430-455-street-strip-performance-camshaft","provider":"Top Speed Cincy Shop","version":"1.0","type":"link"}