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  • GM LS Compatible 427 c.i. Pro Series Engine - 600 Horsepower - Base Dressed - No ECU / Harness
  • GM LS Compatible 427 c.i. Pro Series Engine - 600 Horsepower - Base Dressed - No ECU / Harness
  • GM LS Compatible 427 c.i. Pro Series Engine - 600 Horsepower - Base Dressed - No ECU / Harness
  • GM LS Compatible 427 c.i. Pro Series Engine - 600 Horsepower - Base Dressed - No ECU / Harness

GM LS Compatible 427 c.i. Pro Series Engine - 600 Horsepower - Base Dressed - No ECU / Harness

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  • Detail
    • Detail

      Overview:

      The LS-compatible layout has become a favorite for its rock-solid reliability and proven track record, this BluePrint 427 c.i. Pro Series is a street-ready powerhouse built for performance. Delivering a power packed 600 horsepower and 530 ft-lbs of torque, this popular LS-compatible engine is perfect for restomods, street machines, and pro-touring builds. At its core is a high-strength BluePrint cast iron block with LSX-style features—thicker decks, reinforced webbing, and extended cylinder skirts for added durability. It's topped with LS3-style aluminum heads, a 11:1 compression ratio, hydraulic roller cam, hypereutectic pistons, a nodular iron crankshaft, and BluePrint Engines Fabbed Aluminum Intake Manifold.

      Description:

      • Horsepower & Torque: 600 Horsepower / 530 FT LBS
      • Compression Ratio: 11:1
      • BluePrint Engines LS3 Aluminum Heads
      • BluePrint Engines Hydraulic Roller Cam
      • BluePrint Engines Forged Pistons
      • BluePrint Engines Forged Crank

      Block:

      • BluePrint Engines High Strength Cast Iron (LSX Style) Block
      • Increased Deck Thickness and Strength Webbing
      • Utilizes OEM LS3 Front and Rear Covers
      • Improved Water Jacket Design
      • Extended Cylinder Skirt
      • 1-Piece Rear Main Seal
      • Priority Main Oiling
      • 4.0695" Bore
      • 6-Bolt Main

      Rotating Assembly:

      • Forged Crankshaft
      • 4.125" Stroke
      • Forged 6.125" Connecting Rods
      • Forged Pistons
      • Internally Balanced Front and Rear

      Cylinder Heads:

      • BluePrint Aluminum Cylinder Heads- PS8015
      • 69cc Chamber
      • 2.165" Intake / 1.590" Exhaust Valves
      • 259cc Intake / 102cc Exhaust Runners

      Cam Specs:

      • Hydraulic Roller
      • .624 Intake / .624 Exhaust Lift
      • 239 Intake / 255 Exhaust Duration
      • @.050-114 Degree Lobe Separation

      Also Includes:

      • This engine Does NOT come with a Fuel Injection ECU and Wiring Harness
      • LS3 Fabricated Intake Manifold & Fuel Rail - BPP822112
      • Drive by Wire Throttle Body - BPP12191019
      • Retro Fit Oil Pan - BPP81074
      • Water Pump - BPPLS126WP
      • Spark Plugs and Wires
      • Harmonic Balancer
      • Timing Cover
      • Valve Covers
      • Coil Packs
      • Injectors

      Notes:

      • This engine requires a non-weighted flex plate/flywheel.
      • Recommended fuel: 91 Octane.
      • BluePrint Engines recommends a 2200+ RPM stall converter.
      • Retro fit oil pan will fit most 1955-1995 GM front engine, RWD, V8 cars.
      • Not for use in pollution-controlled vehicles or in dry sump applications.
      • Does NOT include engine controller. This is a dressed long block only. No Harness/ECU provided. This is for customers wishing to use their own engine controller package.
      • BluePrint Engines Recommends Air Intake Kit BPPLS01013 .
    • Description
      This engine is designed and manufactured to factory specs for the specified vehicles below. It's manufactured using tighter machining tolerances, higher quality components, and finer balancing of the rotating assembly to make this engine better than the original while still meeting the description of a “replacement” engine.
    • Warranty

      The satisfaction of our customers is our highest priority at BluePrint Engines. We use quality components to balance your engine's rotating assembly within two grams of spec. We dyno test your crate engine and certify that it's ready to deliver horsepower and torque.

      We give your BluePrint engine the industry's best-in-class warranty for 30-months / 50,000 miles — with the extra confidence only BluePrint can provide. Our warranty applies to individual or professional installations and is fully transferable.

    • Notes
      • Designed as factory replacement long block for specified vehicles and year ranges, using OEM specification parts. Customer to re-use existing intake manifold, ecu (if equipped), exhaust, fuel system etc. Modification or replacement of provided tinware, and minor accommodations such as dipstick location may be required.
      • Specifically designed as an OEM spec engine to meet emissions requirements of the specified vehicles, to meet the criteria of "replacement engine" in all 50 states.
      • If your vehicle was originally equipped with a 2-piece rear main seal crankshaft, a new flex plate or flywheel will be required. Note for those same early applications, this block features the dipstick on the Passenger side.
      • Must verify with application list linked above for fitment.
    • Also Includes
      • New Valve Covers
      • Rear Sump Oil Pan
      • Timing Cover
      • Harmonic Balancer

      Recommended Break in Oil: BPP710 (Click Here)

      Recommended Service Oil: BPP10W30 (Click Here)

      Recommended Oil Filter: BPP51061 (Click Here)

    • Ignition Timing
      • OEM Specifications
    • Cam Specs
      • Hydraulic Flat Tappet
      • OEM Spec Per Listed Vehicles
    • Cylinder Heads
      • Perimeter Bolt Iron Cylinder Heads
    • Rotating Assembly
      • Cast Crankshaft
      • 3.480" Stroke
      • Forged 5.700" Connecting Rods
      • OEM Spec Pistons
      • Internally Balanced Front - Externally Balanced Rear Engine
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