{"product_id":"blueprint-engines-chev-ls-427-pro-series-efi-dressed-engine-605hp-psls4273ctf","title":"BluePrint Engines Chev LS 427 Pro Series EFI Dressed Engine 605hp # PSLS4273CTF","description":"\u003ch1\u003eGM LS Compatible 427 c.i. Pro Series Engine - 605 Horsepower - Base Dressed - Holley Terminator X EFI System\u003c\/h1\u003e\u003ch4\u003eOverview:\u003c\/h4\u003e\u003cp\u003eThe Blueprint Engines 427cubic inch Pro Series crate engine is a dyno-tested, turnkey powerplant that delivers 605 horsepower and 565 lb-ft of torque, making it an ideal match for Holleys Terminator X Max 550-931 EFI system. This engine features a BluePrint Engines High Strength cast iron (LSX Style) block with reinforced internals, steel crankshaft, forged rods, and forged pistons, all internally balanced for durability and long-term performance. Paired with LS3-style aluminum heads and a .624 Intake \/ .624 Exhaust Lift and 239 Intake \/ 255 Exhaust Duration @ .050 - 1140 LSA hydraulic roller cam, the 11:1 compression ratio offers strong street and strip capability. The Terminator X Max ECU included in the kit integrates seamlessly with this engines 58x crank and 4x cam sensor setup, providing plug-and-play functionality with drive-by-wire throttle, coil packs, and EV6-style fuel injectors already installed. The ECUs self-learning fuel map ensures easy startup and quick adaptation to the engines fueling needs without complex tuning, while also enabling expandability for nitrous, boost control, or electric fan integration via CAN or I\/O modules like Holleys 554-165. With included accessories like a pre-installed intake manifold, injectors, throttle body, water pump, and an easy to mount DBW pedal, this engine is truly swap-ready. Whether for a restomod, pro-touring build, or a street performance application, the combination of a dyno-certified engine and the advanced control of the Terminator X Max offers unmatched reliability, tunability, and future upgrade potentialall backed by a 30-month\/50,000-mile warranty.\u003c\/p\u003e\u003ch4\u003eDescription: \u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eHorsepower \u0026amp; Torque: 605 Horsepower \/ 565 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\u003c\/li\u003e\n\u003cli\u003eBluePrint Engines Forged Crank\u003c\/li\u003e\n\u003cli\u003eBluePrint Engines Forged Pistons\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eBlock:\u003c\/h4\u003e\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\u003e4.0685\" Bore\u003c\/li\u003e\n\u003cli\u003e6-Bolt Main\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eRotating Assembly:\u003c\/h4\u003e\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\u003ch4\u003eCylinder Heads:\u003c\/h4\u003e\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\" rel=\"noopener\" target=\"_blank\" title=\"PS8015\"\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\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCam Specs:\u003c\/h4\u003e\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\u003ch4\u003eHolley Terminator X Max Specific Features and Benefits:\u003c\/h4\u003e\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\u003ch4\u003eAlso Includes:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eLS Swap Oil Pan - Windage Tray - Pick Up Screen\u003c\/li\u003e\n\u003cli\u003eBluePrint Engines Fuel Injectors and Rail\u003c\/li\u003e\n\u003cli\u003eDBW 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\"\u003eBPP12191019\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eWater Pump - \u003ca href=\"https:\/\/blueprintengines.com\/collections\/water-pumps\/products\/aluminum-gm-ls1-ls6-1997-1906-water-pump-bppls126wp\" rel=\"noopener\" target=\"_blank\"\u003eBPPLS126WP\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eThrottle Pedal, and Sensors\u003c\/li\u003e\n\u003cli\u003eGM Plastic Intake Manifold\u003c\/li\u003e\n\u003cli\u003eSpark Plugs \u0026amp; Wires\u003c\/li\u003e\n\u003cli\u003eHarmonic Balancer\u003c\/li\u003e\n\u003cli\u003eCoil Packs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eNotes:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eThis Holley EFI Equipped engine has a fully calibrated ECU by BluePrint Engines. Please \u003cstrong\u003eDO NOT \u003c\/strong\u003efollow the Holley EFI manual for the calibration of the ECU.\u003c\/li\u003e\n\u003cli\u003eHolley terminator X MAX System supports transmission control, but requires additional Transmission harness such as \u003ca aria-label=\"Link BPP558405\" href=\"https:\/\/blueprintengines.com\/products\/terminator-4l60w-4l80w-automatic-transmission-controller-harness?_pos=3\u0026amp;_psq=4l80e\u0026amp;_ss=e\u0026amp;_v=1.0\" id=\"menur94b\" rel=\"noreferrer noopener\" target=\"_blank\" title=\"https:\/\/blueprintengines.com\/products\/terminator-4l60w-4l80w-automatic-transmission-controller-harness?_pos=3\u0026amp;_psq=4l80e\u0026amp;_ss=e\u0026amp;_v=1.0\"\u003eBPP558405\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eThis engine requires a non-weighted flex plate\/flywheel.\u003c\/li\u003e\n\u003cli\u003eRetro fit oil pan will fit most 1955-1995 GM front engine, RWD, V8 cars\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e \u003c\/p\u003e","brand":"Blueprint","offers":[{"title":"Default Title","offer_id":47706311852186,"sku":"PSLS4273CTF","price":29950.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/4312\/9498\/files\/PSLS4273CTF.full.webp?v=1775778421","url":"https:\/\/www.eagleautoparts.com.au\/products\/blueprint-engines-chev-ls-427-pro-series-efi-dressed-engine-605hp-psls4273ctf","provider":"Eagle Auto Parts","version":"1.0","type":"link"}