{"product_id":"atk-engines-high-performance-engine-block-hp291p","title":"ATK Engines High Performance Engine Block (MPN: HP291P)","description":"\u003ch2\u003eEngineered for maximum performance and durability in Chevrolet small block V-8 applications.\u003c\/h2\u003e\r\n\u003cp\u003eThe ATK Engines High Performance Engine Block is designed specifically for Chevrolet small block V-8 applications, offering a robust solution for automotive enthusiasts. This engine block features a seasoned OE 4 bolt main design with a 1 piece seal, ensuring long-term durability and reliability. With a compression ratio of 9.1:1, it delivers an impressive output of 325 horsepower and 375 foot pounds of torque, making it suitable for street performance and various automotive applications.\u003c\/p\u003e\r\n\u003cp\u003eConstructed from high-quality cast iron, the engine block includes essential components such as hypereutectic pistons, moly piston rings, and a hydraulic flat tappet camshaft. The externally balanced design, along with the 4.040 inch bore and 3.480 inch stroke, contributes to its efficient performance. Additionally, the engine block is equipped with a double roller timing chain and stamped steel rocker arms, enhancing its operational efficiency.\u003c\/p\u003e\r\n\u003cp\u003eATK Engines has a legacy of over 80 years in engine building, providing products that are utilized in a wide range of vehicles from classics to race cars. This engine block is a testament to their commitment to quality, featuring name brand components that ensure optimal performance. Whether for daily driving or high-performance applications, this engine block meets the demands of automotive enthusiasts.\u003c\/p\u003e\r\n\u003ch3\u003eFeatures\u003c\/h3\u003e\r\n\u003cul\u003e\r\n    \u003cli\u003eProvides Maximum Performance And Long-Term Durability\u003c\/li\u003e\r\n    \u003cli\u003eATK High Performance Engines Are Based On Dyno Proven Combinations Built With Name Brand Parts\u003c\/li\u003e\r\n    \u003cli\u003eFeatures Hypereutectic Pistons And Moly Rings\u003c\/li\u003e\r\n    \u003cli\u003eFeatures Hydraulic Flat Tappet Camshaft\u003c\/li\u003e\r\n    \u003cli\u003eFeatures Double Roller Timing Chain\u003c\/li\u003e\r\n    \u003cli\u003eFeatures Stamped Steel Rocker Arms\u003c\/li\u003e\r\n    \u003cli\u003eFeatures Cast Iron Cylinder Head\u003c\/li\u003e\r\n    \u003cli\u003eFeatures Melling High Volume Oil Pump\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\r\n\u003cul\u003e\r\n    \u003cli\u003eManufacturer: ATK Performance Eng.\u003c\/li\u003e\r\n    \u003cli\u003eManufacturer Part Number: HP291P\u003c\/li\u003e\r\n    \u003cli\u003eEngine Compatibility: Chevy Small Block V8; 5.7L\/350 Cubic Inch 350 Cubic Inch\u003c\/li\u003e\r\n    \u003cli\u003eRecommended Use: Street Performance\u003c\/li\u003e\r\n    \u003cli\u003eHorse Power Output: 325 Horsepower\u003c\/li\u003e\r\n    \u003cli\u003eTorque Output: 375 Feet Pound\u003c\/li\u003e\r\n    \u003cli\u003eBore (IN): 4.04 Inch\u003c\/li\u003e\r\n    \u003cli\u003eStroke (IN): 3.48 Inch\u003c\/li\u003e\r\n    \u003cli\u003eCompression Ratio: 9.1:1\u003c\/li\u003e\r\n    \u003cli\u003eColor: Black\u003c\/li\u003e\r\n    \u003cli\u003eCylinder Block Material: Cast Iron\u003c\/li\u003e\r\n    \u003cli\u003eCylinder Head Material: Cast Iron\u003c\/li\u003e\r\n    \u003cli\u003eBalanced Type: Externally Balanced\u003c\/li\u003e\r\n    \u003cli\u003eIncludes Camshaft: Yes\u003c\/li\u003e\r\n    \u003cli\u003eIncludes Fuel Pump: No\u003c\/li\u003e\r\n    \u003cli\u003eIncludes Oil Pan: Yes\u003c\/li\u003e\r\n    \u003cli\u003eIncludes Water Pump: No\u003c\/li\u003e\r\n    \u003cli\u003eIncludes Intake Manifold: No\u003c\/li\u003e\r\n    \u003cli\u003eIncludes Carburetor: No\u003c\/li\u003e\r\n    \u003cli\u003eIncludes Air Cleaner: No\u003c\/li\u003e\r\n    \u003cli\u003eIncludes Distributor: No\u003c\/li\u003e\r\n    \u003cli\u003eMarine: No\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003ch3\u003eCompatibility \/ Fit\u003c\/h3\u003e\r\n\u003cul\u003e\r\n    \u003cli\u003e1977-1981 Buick Century\u003c\/li\u003e\r\n    \u003cli\u003e1978-1978 Buick LeSabre\u003c\/li\u003e\r\n    \u003cli\u003e1977-1980 Buick Regal\u003c\/li\u003e\r\n    \u003cli\u003e1977-1979 Buick Skylark\u003c\/li\u003e\r\n    \u003cli\u003e1966-1974 Checker Aerobus\u003c\/li\u003e\r\n    \u003cli\u003e1969-1970 Checker Deluxe\u003c\/li\u003e\r\n    \u003cli\u003e1965-1970 Checker Marathon\u003c\/li\u003e\r\n    \u003cli\u003e1972-1982 Checker Marathon\u003c\/li\u003e\r\n    \u003cli\u003e1969-1974 Checker Taxicab\u003c\/li\u003e\r\n    \u003cli\u003e1964-1975 Chevrolet Bel Air\u003c\/li\u003e\r\n    \u003cli\u003e1964-1972 Chevrolet Biscayne\u003c\/li\u003e\r\n    \u003cli\u003e1969-1974 Chevrolet Blazer\u003c\/li\u003e\r\n    \u003cli\u003e1969-1972 Chevrolet Brookwood\u003c\/li\u003e\r\n    \u003cli\u003e1975-1986 Chevrolet C10\u003c\/li\u003e\r\n    \u003cli\u003e1964-1974 Chevrolet C10 Pickup\u003c\/li\u003e\r\n    \u003cli\u003e1967-1985 Chevrolet C10 Suburban\u003c\/li\u003e\r\n    \u003cli\u003e1975-1985 Chevrolet C20\u003c\/li\u003e\r\n    \u003cli\u003e1964-1974 Chevrolet C20 Pickup\u003c\/li\u003e\r\n    \u003cli\u003e1967-1967 Chevrolet C20 Suburban\u003c\/li\u003e\r\n    \u003cli\u003e1967-1974 Chevrolet Camaro\u003c\/li\u003e\r\n    \u003cli\u003e1976-1985 Chevrolet Camaro\u003c\/li\u003e\r\n    \u003cli\u003e1966-1974 Chevrolet Caprice\u003c\/li\u003e\r\n    \u003cli\u003e1977-1985 Chevrolet Caprice\u003c\/li\u003e\r\n    \u003cli\u003e1964-1967 Chevrolet Chevelle\u003c\/li\u003e\r\n    \u003cli\u003e1969-1973 Chevrolet Chevelle\u003c\/li\u003e\r\n    \u003cli\u003e1964-1968 Chevrolet Corvette\u003c\/li\u003e\r\n    \u003cli\u003e1972-1972 Chevrolet Corvette\u003c\/li\u003e\r\n    \u003cli\u003e1974-1981 Chevrolet Corvette\u003c\/li\u003e\r\n    \u003cli\u003e1964-1971 Chevrolet El Camino\u003c\/li\u003e\r\n    \u003cli\u003e1974-1985 Chevrolet El Camino\u003c\/li\u003e\r\n    \u003cli\u003e1975-1985 Chevrolet G10\u003c\/li\u003e\r\n    \u003cli\u003e1968-1974 Chevrolet G10 Van\u003c\/li\u003e\r\n    \u003cli\u003e1975-1985 Chevrolet G20\u003c\/li\u003e\r\n    \u003cli\u003e1967-1974 Chevrolet G20 Van\u003c\/li\u003e\r\n    \u003cli\u003e1964-1985 Chevrolet Impala\u003c\/li\u003e\r\n    \u003cli\u003e1975-1985 Chevrolet K10\u003c\/li\u003e\r\n    \u003cli\u003e1964-1974 Chevrolet K10 Pickup\u003c\/li\u003e\r\n    \u003cli\u003e1967-1985 Chevrolet K10 Suburban\u003c\/li\u003e\r\n    \u003cli\u003e1975-1985 Chevrolet K20\u003c\/li\u003e\r\n    \u003cli\u003e1964-1974 Chevrolet K20 Pickup\u003c\/li\u003e\r\n    \u003cli\u003e1967-1985 Chevrolet K20 Suburban\u003c\/li\u003e\r\n    \u003cli\u003e1975-1985 Chevrolet K5 Blazer\u003c\/li\u003e\r\n    \u003cli\u003e1969-1972 Chevrolet Kingswood\u003c\/li\u003e\r\n    \u003cli\u003e1978-1983 Chevrolet Malibu\u003c\/li\u003e\r\n    \u003cli\u003e1972-1985 Chevrolet Monte Carlo\u003c\/li\u003e\r\n    \u003cli\u003e1975-1979 Chevrolet Monza\u003c\/li\u003e\r\n    \u003cli\u003e1969-1979 Chevrolet Nova\u003c\/li\u003e\r\n    \u003cli\u003e1975-1975 Chevrolet P10\u003c\/li\u003e\r\n    \u003cli\u003e1977-1979 Chevrolet P10\u003c\/li\u003e\r\n    \u003cli\u003e1973-1973 Chevrolet P10 Van\u003c\/li\u003e\r\n    \u003cli\u003e1975-1985 Chevrolet P20\u003c\/li\u003e\r\n    \u003cli\u003e1970-1974 Chevrolet P20 Van\u003c\/li\u003e\r\n    \u003cli\u003e1975-1985 Chevrolet P30\u003c\/li\u003e\r\n    \u003cli\u003e1970-1974 Chevrolet P30 Van\u003c\/li\u003e\r\n    \u003cli\u003e1964-1966 Chevrolet Suburban\u003c\/li\u003e\r\n    \u003cli\u003e1969-1972 Chevrolet Townsman\u003c\/li\u003e\r\n    \u003cli\u003e1975-1978 GMC C15\u003c\/li\u003e\r\n    \u003cli\u003e1975-1978 GMC C15 Suburban\u003c\/li\u003e\r\n    \u003cli\u003e1967-1974 GMC C15\/C1500 Pickup\u003c\/li\u003e\r\n    \u003cli\u003e1968-1974 GMC C15\/C1500 Suburban\u003c\/li\u003e\r\n    \u003cli\u003e1979-1985 GMC C1500\u003c\/li\u003e\r\n    \u003cli\u003e1975-1978 GMC C25\u003c\/li\u003e\r\n    \u003cli\u003e1975-1978 GMC C25 Suburban\u003c\/li\u003e\r\n    \u003cli\u003e1967-1974 GMC C25\/C2500 Pickup\u003c\/li\u003e\r\n    \u003cli\u003e1968-1974 GMC C25\/C2500 Suburban\u003c\/li\u003e\r\n    \u003cli\u003e1979-1985 GMC C2500\u003c\/li\u003e\r\n    \u003cli\u003e1978-1985 GMC Caballero\u003c\/li\u003e\r\n    \u003cli\u003e1975-1978 GMC G15\u003c\/li\u003e\r\n    \u003cli\u003e1967-1974 GMC G15\/G1500 Van\u003c\/li\u003e\r\n    \u003cli\u003e1979-1985 GMC G1500\u003c\/li\u003e\r\n    \u003cli\u003e1975-1978 GMC G25\u003c\/li\u003e\r\n    \u003cli\u003e1967-1974 GMC G25\/G2500 Van\u003c\/li\u003e\r\n    \u003cli\u003e1979-1985 GMC G2500\u003c\/li\u003e\r\n    \u003cli\u003e1970-1974 GMC G35\/G3500 Van\u003c\/li\u003e\r\n    \u003cli\u003e1979-1985 GMC G3500\u003c\/li\u003e\r\n    \u003cli\u003e1970-1974 GMC Jimmy\u003c\/li\u003e\r\n    \u003cli\u003e1977-1985 GMC Jimmy\u003c\/li\u003e\r\n    \u003cli\u003e1975-1978 GMC K15\u003c\/li\u003e\r\n    \u003cli\u003e1975-1978 GMC K15 Suburban\u003c\/li\u003e\r\n    \u003cli\u003e1967-1974 GMC K15\/K1500 Pickup\u003c\/li\u003e\r\n    \u003cli\u003e1967-1974 GMC K15\/K1500 Suburban\u003c\/li\u003e\r\n    \u003cli\u003e1979-1985 GMC K1500\u003c\/li\u003e\r\n    \u003cli\u003e1979-1985 GMC K1500 Suburban\u003c\/li\u003e\r\n    \u003cli\u003e1975-1978 GMC K25\u003c\/li\u003e\r\n    \u003cli\u003e1975-1978 GMC K25 Suburban\u003c\/li\u003e\r\n    \u003cli\u003e1967-1974 GMC K25\/K2500 Pickup\u003c\/li\u003e\r\n    \u003cli\u003e1968-1974 GMC K25\/K2500 Suburban\u003c\/li\u003e\r\n    \u003cli\u003e1979-1985 GMC K2500\u003c\/li\u003e\r\n    \u003cli\u003e1979-1985 GMC K2500 Suburban\u003c\/li\u003e\r\n    \u003cli\u003e1967-1967 GMC P15\/P1500 Van\u003c\/li\u003e\r\n    \u003cli\u003e1970-1973 GMC P15\/P1500 Van\u003c\/li\u003e\r\n    \u003cli\u003e1975-1978 GMC P25\u003c\/li\u003e\r\n    \u003cli\u003e1967-1974 GMC P25\/P2500 Van\u003c\/li\u003e\r\n    \u003cli\u003e1979-1985 GMC P2500\u003c\/li\u003e\r\n    \u003cli\u003e1971-1971 GMC Sprint\u003c\/li\u003e\r\n    \u003cli\u003e1974-1974 GMC Sprint\u003c\/li\u003e\r\n    \u003cli\u003e1976-1977 GMC Sprint\u003c\/li\u003e\r\n    \u003cli\u003e1964-1965 GMC Suburban\u003c\/li\u003e\r\n    \u003cli\u003e1977-1977 Oldsmobile Custom Cruiser\u003c\/li\u003e\r\n    \u003cli\u003e1978-1980 Oldsmobile Cutlass\u003c\/li\u003e\r\n    \u003cli\u003e1980-1980 Oldsmobile Cutlass Cruiser\u003c\/li\u003e\r\n    \u003cli\u003e1982-1982 Oldsmobile Cutlass Cruiser\u003c\/li\u003e\r\n    \u003cli\u003e1978-1980 Oldsmobile Cutlass Salon\u003c\/li\u003e\r\n    \u003cli\u003e1978-1980 Oldsmobile Cutlass Supreme\u003c\/li\u003e\r\n    \u003cli\u003e1977-1979 Oldsmobile Omega\u003c\/li\u003e\r\n    \u003cli\u003e1977-1979 Oldsmobile Starfire\u003c\/li\u003e\r\n    \u003cli\u003e1980-1981 Pontiac Bonneville\u003c\/li\u003e\r\n    \u003cli\u003e1983-1985 Pontiac Bonneville\u003c\/li\u003e\r\n    \u003cli\u003e1980-1981 Pontiac Catalina\u003c\/li\u003e\r\n    \u003cli\u003e1977-1985 Pontiac Firebird\u003c\/li\u003e\r\n    \u003cli\u003e1978-1980 Pontiac Grand Am\u003c\/li\u003e\r\n    \u003cli\u003e1977-1981 Pontiac Grand LeMans\u003c\/li\u003e\r\n    \u003cli\u003e1978-1981 Pontiac Grand Prix\u003c\/li\u003e\r\n    \u003cli\u003e1983-1985 Pontiac Grand Prix\u003c\/li\u003e\r\n    \u003cli\u003e1977-1981 Pontiac LeMans\u003c\/li\u003e\r\n    \u003cli\u003e1983-1986 Pontiac Parisienne\u003c\/li\u003e\r\n    \u003cli\u003e1978-1979 Pontiac Sunbird\u003c\/li\u003e\r\n    \u003cli\u003e1977-1977 Pontiac Ventura\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003ch3\u003eTechnical Documents\u003c\/h3\u003e\n\u003cul\u003e\r\n    \u003cli\u003e\u003ca href=\"https:\/\/vehiclepartimages.com\/PMDT\/ATP\/Warranty\/ATK%20Warranty.pdf\" target=\"_blank\"\u003eATK_Warranty.pdf\u003c\/a\u003e\u003c\/li\u003e\r\n    \u003cli\u003e\u003ca href=\"https:\/\/vehiclepartimages.com\/PMDT\/ATP\/TechnicalBulletins\/HP291P.pdf\" target=\"_blank\"\u003eHP291P.pdf\u003c\/a\u003e\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n","brand":"NTP-Stag","offers":[{"title":"Default Title","offer_id":46928022241519,"sku":"ATKHP291P","price":6155.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1583\/3619\/files\/atkhp291p-1.jpg?v=1767375289","url":"https:\/\/www.sprinterpartsdepot.com\/products\/atk-engines-high-performance-engine-block-hp291p","provider":"Sprinter Parts Depot","version":"1.0","type":"link"}