{"product_id":"gm-ls-compatible-427-c-i-pro-series-engine-585-horsepower-deluxe-dressed-polished-pulley-kit-holley-terminator-x-efi-system","title":"GM LS Compatible 427 c.i. Pro Series Engine - 585 Horsepower - Deluxe Dressed - Polished Pulley Kit - Holley Terminator X EFI System","description":"\u003ch4\u003eOverview:\u003c\/h4\u003e\n\u003cp\u003e\u003c!--StartFragment --\u003e\u003c\/p\u003e\n\u003cp\u003eThis powerhouse of an engine build is a testament to precision engineering and raw performance. Delivering a formidable 585 horsepower and 520 ft. lbs. of torque, it’s driven by a BluePrint Engines LSX-style high-strength cast iron block, paired with forged crank and pistons for uncompromising durability. The 11:1 compression ratio ensures optimal combustion efficiency, while LS3 aluminum heads and a hydraulic roller cam (featured twice for emphasis on valvetrain performance) bring refined airflow and aggressive cam timing. Feeding this beast is a drive-by-wire throttle body and LS3 cast aluminum intake manifold, supported by a complete injector and fuel rail kit for consistent fuel delivery. The LS swap oil pan, water pump, and gas pedal round out the essentials, while the Holley Terminator X Max ECU provides cutting-edge engine management. A polished pulley kit featuring an LS2-style water pump, 140-amp alternator, peanut-style A\/C compressor, and Type II power steering pump with remote reservoir ensures accessory systems run smoothly and reliably. Altogether, this setup blends brute force with modern control, making it ideal for high-performance street applications.\u003c!--EndFragment --\u003e\u003c\/p\u003e\n\u003ch4\u003eDescription: \u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eHorsepower \u0026amp; Torque: 585 Horsepower \/ 520 ft. lbs. Torque\u003c\/li\u003e\n\u003cli\u003eCompression Ratio: 11:1\u003c\/li\u003e\n\u003cli\u003eBluePrint Engines LS3 Aluminum Heads\u003c\/li\u003e\n\u003cli\u003eBluePrint Engines Hydraulic Roller Cam\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBluePrint Engines Forged Crank\u003c\/li\u003e\n\u003cli\u003eBluePrint Engines Forged Pistons\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan\u003eBlock:\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBluePrint Engines High Strength Cast Iron (LSX Style) Block\u003c\/li\u003e\n\u003cli\u003eIncreased Deck Thickness and Strength Webbing\u003c\/li\u003e\n\u003cli\u003eUtilizes OEM LS3 Front and Rear Covers\u003c\/li\u003e\n\u003cli\u003eImproved Water Jacket Design\u003c\/li\u003e\n\u003cli\u003eExtended Cylinder Skirt\u003c\/li\u003e\n\u003cli\u003e1-Piece Rear Main Seal\u003c\/li\u003e\n\u003cli\u003ePriority Main Oiling\u003c\/li\u003e\n\u003cli\u003e4.0695\" Bore\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e6-Bolt Main\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eRotating Assembly:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eForged Crankshaft\u003c\/li\u003e\n\u003cli\u003e4.125\" Stroke\u003c\/li\u003e\n\u003cli\u003eForged 6.125\" Connecting Rods\u003c\/li\u003e\n\u003cli\u003eForged Pistons\u003c\/li\u003e\n\u003cli\u003eInternally Balanced Front and Rear\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCylinder Heads:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eBluePrint Aluminum Cylinder Heads - \u003ca href=\"https:\/\/blueprintengines.com\/collections\/cylinder-heads\/products\/gm-ls-aluminum-cylinder-head-259cc-std-head-bolts-assembled-ps8015\" title=\"PS8015\" rel=\"noopener\" target=\"_blank\"\u003ePS8015\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e69cc Chamber\u003c\/li\u003e\n\u003cli\u003e2.165\" Intake \/ 1.590\" Exhaust Valves\u003c\/li\u003e\n\u003cli\u003e259cc Intake \/102cc Exhaust Runners\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCam Specs:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eHydraulic Roller\u003c\/li\u003e\n\u003cli\u003e.624 Intake \/ .624 Exhaust Lift\u003c\/li\u003e\n\u003cli\u003e239 Intake \/ 255 Exhaust Duration\u003c\/li\u003e\n\u003cli\u003e@.050-114 Degree Lobe Separation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eHolley Terminator X Max Specific Features and Benefits:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eReal Time Fuel Map Learning Simplifies Tuning by Dynamically Adjusting the Base Fuel Rate\u003c\/li\u003e\n\u003cli\u003eOn Board Bosch LSU 4.9 Wideband Control, Enabling Accurate AFR Readings and Closed Loop Tuning\u003c\/li\u003e\n\u003cli\u003eEight High Impedance Injector Drivers, Ideal for Stock LS Injectors and Holley EFI Injectors\u003c\/li\u003e\n\u003cli\u003eIntegrated 1-Bar MAP Sensor for Naturally Aspirated or Nitrous Setups, with Harness Support for External Higher Bar Sensors if needed\u003c\/li\u003e\n\u003cli\u003e4 Configurable Inputs (12V, Ground, 5V, Frequency) and 2 Outputs (Ground, PWM) - Ideal for Electric Fans, Boost Control Solenoids, Nitrous Control and more\u003c\/li\u003e\n\u003cli\u003eFree PC Tuning Software via USB\/CAN Interface for Full Laptop Control and Advance Setup\u003c\/li\u003e\n\u003cli\u003eIntegrated 3.5\" Touchscreen Handheld with Setup Wizard, Internal Data Logging, and Real Time Gauge Displays\u003c\/li\u003e\n\u003cli\u003eTerminator X Max ECU will Include a Base Timing Map Pre-Configured for this engine\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eAlso Includes:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eDrive by Wire\u003c\/span\u003e Throttle Body - \u003ca href=\"https:\/\/blueprintengines.com\/collections\/throttle-bodies\/products\/87mm-ls-based-throttle-body-truck-suv-oem-drive-by-wire-throttle-body\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan\u003eBPP12191019\u003c\/span\u003e\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLS3 Cast Aluminum Intake Manifold\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLS Swap Oil Pan - \u003ca href=\"https:\/\/blueprintengines.com\/collections\/pans-dipsticks\/products\/ls-oil-pan-swap-kit-rear-sump-oil-pan-kit-for-muscle-car-truck-engine-swap\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan\u003eBPP81074\u003c\/span\u003e\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eEngine Harness and ECU Kit\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eInjectors and Fuel Rail Kit\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpark Plugs \u0026amp; Wiring\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHarmonic Balancer \u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTiming Cover\u003c\/li\u003e\n\u003cli\u003eValve Covers\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCoil Packs\u003c\/li\u003e\n\u003cli\u003eGas Pedal\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePolished Pulley Kit\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003eLS2 Style Water Pump\u003c\/li\u003e\n\u003cli\u003e1- Wire 140amp Alternator\u003c\/li\u003e\n\u003cli\u003ePeanut Style Air Conditioning Compressor\u003c\/li\u003e\n\u003cli\u003eType II Power Steering Pump with Remote Reservoir\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eNotes:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eThis Holley EFI Equipped engine has a fully calibrated ECU by BluePrint Engines. Please \u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eDO NOT\u003c\/span\u003e \u003c\/strong\u003efollow the Holley EFI manual for the calibration of the ECU.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\n\u003cspan\u003eThe front accessory drive on this engine fits many vehicles, however it is the customer responsibility to accurately measure and confirm fitment.  Note this is a low-profile design, but things such as power steering hoses, alternator wiring, and additional fittings\/fabrication may be required on some vehicles.\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRetro fit oil pan will fit most 1955-1995 GM front engine, RWD, V8 cars.\u003c\/li\u003e\n\u003cli\u003eNot for use in pollution-controlled vehicles or in dry sump applications.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBluePrint Engines Recommends Air Intake Kit \u003ca href=\"https:\/\/blueprintengines.com\/products\/blueprint-engines-air-intake-kit-for-ls-engines\"\u003eBPPLS01013\u003c\/a\u003e to ensure correct MAF calculations and Dyno calibration are maintained with the provided ECU \/ tuning.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"product-custom-info\"\u003e\u003ca style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\" title=\"https:\/\/www.p65warnings.ca.gov\/\" href=\"https:\/\/www.p65warnings.ca.gov\/\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2160\/9839\/files\/warning.png?v=1634161036\" alt=\"\"\u003e \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2160\/9839\/files\/emissions5.png?v=1634153040\" alt=\"\"\u003e\u003c\/a\u003e\u003c\/div\u003e","brand":"BluePrint Engines","offers":[{"title":"Default Title","offer_id":50468193239326,"sku":"PSLS42781CTFK","price":22791.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/7171\/1262\/files\/PSLS42781CTFK_1.jpg?v=1767160857","url":"https:\/\/platinumhpsolutions.myshopify.com\/fr\/products\/gm-ls-compatible-427-c-i-pro-series-engine-585-horsepower-deluxe-dressed-polished-pulley-kit-holley-terminator-x-efi-system","provider":"Platinum High Performance Solutions, LLC.","version":"1.0","type":"link"}