{"product_id":"gm-ls3-427-crate-engine-base-dressed-600-hp","title":"BluePrint GM LS-Compatible Base Dressed Engine – 427 c.i. – 600 HP","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003e600 HP · 530 lb-ft · 427 c.i. · 91+ Octane · Dyno Tested · 30-Month\/50,000-Mile Warranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eBuilt for serious builders who need big-cubic-inch LS power in a ready-to-complete package, this BluePrint Engines GM LS Compatible 427 Crate Engine delivers 600 horsepower and 530 lb-ft of torque. The increased 427 cubic inch displacement provides strong low-end torque and broad power delivery for high-performance off-road, street, racing, and custom vehicle applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eAt the foundation is a high-strength LSX-style cast iron block featuring increased deck thickness, reinforced webbing, extended cylinder skirts, priority main oiling, and six-bolt mains. A forged rotating assembly combines a 4.125-inch stroke crankshaft, forged 6.125-inch connecting rods, and forged pistons for the durability required in high-load and high-horsepower builds.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eBluePrint LS3-style aluminum cylinder heads and an aggressive hydraulic roller camshaft help the engine produce strong airflow and power throughout the RPM range. The base-dressed configuration includes a fabricated aluminum LS3 intake manifold, drive-by-wire throttle body, fuel rails, injectors, coil packs, water pump, retro-fit oil pan, and other essential engine components.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe ECU and wiring harness are \u003cstrong\u003enot included\u003c\/strong\u003e, allowing builders to select an engine management package that matches their transmission, vehicle wiring, tuning requirements, and overall build.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"1210\" data-start=\"970\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003eNeed to confirm fitment or get an exact delivered price? \u003ca href=\"tel:615-962-9135\"\u003eCall\u003c\/a\u003e\u003ca href=\"(615)%20962-9135\"\u003e \u003c\/a\u003eor \u003ca href=\"sms:615-522-7164\"\u003etext\u003c\/a\u003e our team before ordering.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIncludes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBluePrint GM LS Compatible 427 Base-Dressed Crate Engine\u003c\/li\u003e\n\u003cli\u003eHigh-Strength LSX-Style Cast Iron Block\u003c\/li\u003e\n\u003cli\u003eBluePrint LS3 Aluminum Cylinder Heads\u003c\/li\u003e\n\u003cli\u003eBluePrint Fabricated Aluminum LS3 Intake Manifold\u003c\/li\u003e\n\u003cli\u003eFuel Rails\u003c\/li\u003e\n\u003cli\u003eDrive-by-Wire Throttle Body\u003c\/li\u003e\n\u003cli\u003e42 lb\/hr Fuel Injectors\u003c\/li\u003e\n\u003cli\u003eHydraulic Roller Camshaft\u003c\/li\u003e\n\u003cli\u003eForged Crankshaft\u003c\/li\u003e\n\u003cli\u003eForged Connecting Rods\u003c\/li\u003e\n\u003cli\u003eForged Pistons\u003c\/li\u003e\n\u003cli\u003eRetro-Fit Oil Pan\u003c\/li\u003e\n\u003cli\u003eWater Pump\u003c\/li\u003e\n\u003cli\u003eHarmonic Balancer\u003c\/li\u003e\n\u003cli\u003eTiming Cover\u003c\/li\u003e\n\u003cli\u003eValve Covers\u003c\/li\u003e\n\u003cli\u003eCoil Packs\u003c\/li\u003e\n\u003cli\u003eSpark Plugs\u003c\/li\u003e\n\u003cli\u003eSpark Plug Wires\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003eNote: \u003c\/strong\u003eThis engine does \u003cstrong\u003eNOT \u003c\/strong\u003einclude an ECU or engine controller, engine wiring harness, drive-by-wire accelerator pedal, flexplate or flywheel, front accessory drive system, alternator, power steering pump, air-conditioning compressor, exhaust headers, air intake system, transmission controller, or transmission.\u003c\/p\u003e\n\u003chr\u003e\n\u003cdetails class=\"details\"\u003e\n\u003csummary class=\"details__header\"\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e \u003cspan class=\"svg-wrapper icon-plus\"\u003e \u003csvg width=\"14\" height=\"14\" viewbox=\"0 0 14 14\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\n          \u003cpath class=\"vertical\" d=\"M2.75 7H11.25\" stroke=\"currentColor\" stroke-width=\"var(--icon-stroke-width)\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\n          \u003cpath class=\"horizontal\" d=\"M7 2.75L7 11.25\" stroke=\"currentColor\" stroke-width=\"var(--icon-stroke-width)\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\n        \u003c\/svg\u003e \u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"details-content rte\"\u003e\n\u003ctable class=\"custom-specs-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eGM LS Compatible V8\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplacement\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e427 Cubic Inches\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHorsepower\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e600 HP\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTorque\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e530 lb-ft\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBlock Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHigh-Strength Cast Iron\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBlock Design\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eLSX Style\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4.0695 Inches\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStroke\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4.125 Inches\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMain Caps\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e6-Bolt Main\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompression Ratio\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e11.0:1\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCrankshaft\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eForged Steel\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConnecting Rods\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eForged 6.125-Inch Rods\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePistons\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eForged 22cc Dish Pistons\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine Balance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eInternally Balanced Front and Rear\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCylinder Heads\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBluePrint LS3-Style Aluminum Heads\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCombustion Chamber\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e69cc\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIntake Valve Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2.165 Inches\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eExhaust Valve Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.590 Inches\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIntake Runner Volume\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e259cc\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eExhaust Runner Volume\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e102cc\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCamshaft Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHydraulic Roller\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCamshaft Lift\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e.624-Inch Intake \/ .624-Inch Exhaust\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDuration at .050 Inch\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e239-Degree Intake \/ 255-Degree Exhaust\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLobe Separation Angle\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e114 Degrees\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIntake Manifold\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBluePrint Fabricated Aluminum LS3 Intake\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThrottle Body\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDrive-by-Wire\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFuel Injectors\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e42 lb\/hr at 58 PSI\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOil Pan\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRetro-Fit Wet-Sump Oil Pan\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOil Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e6 Quarts with Recommended Filter\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRecommended Fuel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e91-Octane or Higher\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRecommended Stall Converter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2,200 RPM or Higher\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFiring Order\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1-8-7-2-6-5-4-3\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003chr\u003e\n\u003cdetails class=\"details\"\u003e\n\u003csummary\u003e\u003cstrong\u003eBlock Features\u003c\/strong\u003e \u003cspan class=\"svg-wrapper icon-plus\"\u003e \u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewbox=\"0 0 14 14\" height=\"14\" width=\"14\"\u003e\n          \u003cpath stroke-linecap=\"round\" stroke-width=\"var(--icon-stroke-width)\" stroke=\"currentColor\" d=\"M2.75 7H11.25\" class=\"vertical\"\u003e\u003c\/path\u003e\n          \u003cpath stroke-linecap=\"round\" stroke-width=\"var(--icon-stroke-width)\" stroke=\"currentColor\" d=\"M7 2.75L7 11.25\" class=\"horizontal\"\u003e\u003c\/path\u003e\n        \u003c\/svg\u003e \u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"details-content rte\"\u003e\n\u003cul\u003e\n\u003cli\u003eIncreased deck thickness\u003c\/li\u003e\n\u003cli\u003eReinforced strength webbing\u003c\/li\u003e\n\u003cli\u003eExtended cylinder skirts\u003c\/li\u003e\n\u003cli\u003eImproved water-jacket design\u003c\/li\u003e\n\u003cli\u003ePriority main oiling\u003c\/li\u003e\n\u003cli\u003eSix-bolt main construction\u003c\/li\u003e\n\u003cli\u003eOne-piece rear main seal\u003c\/li\u003e\n\u003cli\u003eCompatible with OEM-style LS3 front and rear covers\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003chr\u003e\n\u003cdetails class=\"details\"\u003e\n\u003csummary\u003e\u003cmeta charset=\"utf-8\"\u003e \u003cstrong\u003eImportant Installation Notes\u003c\/strong\u003e\u003cb id=\"docs-internal-guid-0515f661-7fff-e97c-38f2-2aa866f6eb89\"\u003e\u003c\/b\u003e \u003cspan class=\"svg-wrapper icon-plus\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewbox=\"0 0 14 14\" height=\"14\" width=\"14\"\u003e\n          \u003cpath stroke-linecap=\"round\" stroke-width=\"var(--icon-stroke-width)\" stroke=\"currentColor\" d=\"M2.75 7H11.25\" class=\"vertical\"\u003e\u003c\/path\u003e\n          \u003cpath stroke-linecap=\"round\" stroke-width=\"var(--icon-stroke-width)\" stroke=\"currentColor\" d=\"M7 2.75L7 11.25\" class=\"horizontal\"\u003e\u003c\/path\u003e\n        \u003c\/svg\u003e\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"details-content rte\"\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong data-start=\"7574\" data-end=\"7632\"\u003eBuilt by Off-Road People, Supported by Off-Road People\u003c\/strong\u003e\u003cbr data-start=\"7632\" data-end=\"7635\"\u003eWide Open Design has more than 20 years of experience building LS-powered rock crawlers, trail rigs, race cars, and custom tube-chassis vehicles. We can help you match the engine with the correct cooling system, fuel delivery, transmission, drivetrain, and installation components for your build.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEngine controller, ECU, and wiring harness are not included.\u003c\/li\u003e\n\u003cli\u003eA compatible aftermarket or OEM-style engine management system is required.\u003c\/li\u003e\n\u003cli\u003eThis engine requires a non-weighted flexplate or flywheel.\u003c\/li\u003e\n\u003cli\u003eBluePrint Engines recommends a torque converter with a stall speed of 2,200 RPM or higher.\u003c\/li\u003e\n\u003cli\u003eThe included retro-fit oil pan is intended to fit many 1955–1995 GM front-engine, rear-wheel-drive V8 vehicles. Off-road chassis and custom installations must be checked for oil-pan and axle clearance.\u003c\/li\u003e\n\u003cli\u003eThis engine is not intended for dry-sump applications.\u003c\/li\u003e\n\u003cli\u003eThis engine is not intended for use in pollution-controlled vehicles.\u003c\/li\u003e\n\u003cli\u003eFinal horsepower can be affected by the ECU calibration, air intake, exhaust system, fuel system, accessories, and other installation components.\u003c\/li\u003e\n\u003cli\u003eVerify throttle pedal, fuel pressure, transmission control, accessory drive, exhaust, cooling system, and wiring compatibility before installation.\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003chr\u003e\n\u003cdetails class=\"details\"\u003e\n\u003csummary\u003e\u003cstrong\u003eBest For\u003c\/strong\u003e \u003cspan class=\"svg-wrapper icon-plus\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewbox=\"0 0 14 14\" height=\"14\" width=\"14\"\u003e\n          \u003cpath stroke-linecap=\"round\" stroke-width=\"var(--icon-stroke-width)\" stroke=\"currentColor\" d=\"M2.75 7H11.25\" class=\"vertical\"\u003e\u003c\/path\u003e\n          \u003cpath stroke-linecap=\"round\" stroke-width=\"var(--icon-stroke-width)\" stroke=\"currentColor\" d=\"M7 2.75L7 11.25\" class=\"horizontal\"\u003e\u003c\/path\u003e\n        \u003c\/svg\u003e\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"details-content rte\"\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-horsepower rock bouncers\u003c\/li\u003e\n\u003cli\u003eUltra4 and off-road race vehicles\u003c\/li\u003e\n\u003cli\u003eHigh-performance rock crawlers\u003c\/li\u003e\n\u003cli\u003ePrerunners and desert builds\u003c\/li\u003e\n\u003cli\u003eLS-swapped custom trucks\u003c\/li\u003e\n\u003cli\u003eMuscle cars and hot rods\u003c\/li\u003e\n\u003cli\u003ePro-touring vehicles\u003c\/li\u003e\n\u003cli\u003eBuilders who want naturally aspirated LS power\u003c\/li\u003e\n\u003cli\u003eApplications requiring strong low-end and midrange torque\u003c\/li\u003e\n\u003cli\u003eCustom builds using an aftermarket ECU and wiring system\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003chr\u003e","brand":"BluePrint Engines","offers":[{"title":"Default Title","offer_id":56768673382566,"sku":"PSLS42750CTF","price":13799.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/8394\/6406\/files\/PSLS42750CTF-GM-LS-Engine-427-Base-Dressed-1.jpg?v=1784065881","url":"https:\/\/wideopendesign.com\/products\/gm-ls3-427-crate-engine-base-dressed-600-hp","provider":"Wide Open Design","version":"1.0","type":"link"}