SKU: PSLS37681CTFKB
BluePrint Engines GM LS Compatible 376 c.i. Pro Series Engine - 510 Horsepower - Deluxe Dressed - Black Pulley Kit - Holley Terminator X EFI System
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376 c.i. 510 Horsepower Deluxe Dress

Horsepower & Torque: 510 Horsepower / 440 ft. lbs. Torque

Cylinder Heads: BluePrint Engines LS3 Aluminum Cylinder Heads

Compression Ratio: 10.7:1

Camshaft: Hydraulic Roller Cam - .612 Intake / .585 Exhaust Lift and 225 Intake / 238 Exhaust Duration @ .050 - 113° LSA - Three Bolt Cam

Pistons: Hypereutectic

Crankshaft: Nodular Iron Crank - 3.622" Stroke and 6.125" Rods

Multi-Port Fuel Injection: Holley Terminator X Max - Gen IV Complete ECU/Harness EFI System

Fuel Recommendation: 91+ Octane

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Overview:

The BluePrint ever popular GM LS-Compatible 376 c.i. performance crate engine is packing a punch with 510 horsepower and 440 ft-lbs of torque, this powerplant is built to dominate. At its core lies a BluePrint Engines high-strength cast iron LSX-style block, paired with LS3 aluminum heads and a 10.7:1 compression ratio for optimal combustion efficiency. The hydraulic roller cam and hypereutectic pistons ensure smooth, reliable performance, while the nodular iron crankshaft adds durability under high stress. Fuel delivery is seamless thanks to the injectors and fuel rail kit, feeding into the LS3 cast aluminum intake manifold. A drive-by-wire throttle body and Holley Terminator X Max system provide precise control and modern tuning capabilities. Completing the setup are essentials like the LS swap oil pan, water pump, and gas pedal—making this engine not just powerful, but fully prepped for a clean, efficient swap into your next build. Adding a black front pulley kit with at LS2 style water pump, power steering pump with a remote reservoir, 140-amp alternator, and an air conditioning compressor.

Description:

  • Horsepower & Torque: 510 Horsepower / 440 ft. lbs. Torque
  • Compression Ratio: 10.7:1
  • BluePrint Engines LS3 Aluminum Heads
  • BluePrint Engines Hydraulic Roller Cam
  • BluePrint Engines Hypereutectic Pistons
  • Nodular Iron Crankshaft

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
  • 4.0662" Bore
  • 6-Bolt Main

Rotating Assembly:

  • Nodular Iron Crankshaft
  • 3.622" Stroke
  • 6.098" Connecting Rods w/ 150,000 PSI Bolts
  • Hypereutectic Pistons
  • Internally Balanced Front and Rear

Cylinder Heads:

  • BluePrint LS3 Aluminum Cylinder Heads - PS8015
  • 69cc Chamber
  • 2.165" Intake / 1.590" Exhaust Valves
  • 259cc Intake / 102cc Exhaust Runners

Cam Specs:

  • Hydraulic Roller Cam
  • .612 Intake / .585 Exhaust Lift
  • 225 Intake / 238 Exhaust duration
  • @.050-113 Degree Lobe Separation

Holley Terminator X Max Specific Features and Benefits:

  • Real Time Fuel Map Learning Simplifies Tuning by Dynamically Adjusting the Base Fuel Rate
  • On Board Bosch LSU 4.9 Wideband Control, Enabling Accurate AFR Readings and Closed Loop Tuning
  • Eight High Impedance Injector Drivers, Ideal for Stock LS Injectors and Holley EFI Injectors
  • Integrated 1-Bar MAP Sensor for Naturally Aspirated or Nitrous Setups, with Harness Support for External Higher Bar Sensors if needed
  • 4 Configurable Inputs (12V, Ground, 5V, Frequency) and 2 Outputs (Ground, PWM) - Ideal for Electric Fans, Boost Control Solenoids, Nitrous Control and more
  • Free PC Tuning Software via USB/CAN Interface for Full Laptop Control and Advance Setup
  • Integrated 3.5" Touchscreen Handheld with Setup Wizard, Internal Data Logging, and Real Time Gauge Displays
  • Terminator X Max ECU will Include a Base Timing Map Pre-Configured for this engine

Also Includes:

  • Drive by Wire Throttle Body - BPP12191019
  • LS3 Cast Aluminum Intake Manifold
  • LS Swap Oil Pan - BPP81073
  • Injectors and Fuel Rail Kit
  • Spark Plugs & Wiring
  • Harmonic Balancer 
  • Timing Cover
  • Valve Covers
  • Coil Packs
  • Gas Pedal
  • Black Pulley Kit
    • LS2 Style Water Pump
    • 1- Wire 140amp Alternator
    • Peanut Style Air Conditioning Compressor
    • Type II Power Steering Pump with Remote Reservoir

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.

WARNING: Cancer and Reproductive Harm
Bragging Rights Included.

EVERY BLUEPRINT ENGINE ACES THE DYNO TEST

We make sure we hit our target horsepower and proper torque with every crate engine. We use an advanced computerized balancer in our in-house dyno testing rooms to get our rotating assemblies within two grams, ensuring silky smooth power over the entire RPM range. That’s precisely why our engines sound and run better than our competitors.

All specs, zero speculation: A comprehensive, dyno-generated printout showing your critical engine specs will accompany your delivered engine — every time. No more guessing or wondering what your installed engine’s real-world peak horsepower and torque ratings actually are. Any doubters in the crowd? Simply flash ‘em your exact engine’s dyno results.

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