BluePrint Engines PSLS37651CTF LS 376/525HP ProSeries BaseDressed

This LS3 compatible engine build is a formidable fusion of strength, precision, and performance, anchored by BluePrint Engines’ high-strength cast iron LSX-style block. It churns out a commanding 525 horsepower and 460 ft. lbs. of torque, with a 10.7:1 compression ratio that ensures both power and efficiency. The setup features BluePrint’s aluminum heads, hydraulic roller cam, and hypereutectic pistons, all working in concert with a nodular iron crankshaft for durability under high-stress conditions. Air and fuel delivery are optimized through a Holley Terminator X Max system, LS3 fabricated aluminum intake manifold, and a matched injector and fuel rail kit. The LS Swap oil pan ensures seamless integration, while the drive-by-wire throttle body adds modern responsiveness. Altogether, this engine is engineered to deliver relentless performance with rock-solid reliability—perfect for enthusiasts who demand power without compromise.

• BluePrint LS3-based 376 delivers 525 horsepower and 460 ft.-lbs. of torque
• Holley Terminator X Max EFI
• High-strength LSX-style cast iron block, nodular iron crankshaft, and hypereutectic piston
• BluePrint LS3 aluminum heads, hydraulic roller cam, and fabricated aluminum intake manifold
• Swap-ready package includes LS swap oil pan, drive-by-wire throttle body, throttle pedal, water pump, injectors and fuel rail, coil packs, and valve covers

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
• 4.0622" 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:

• LS3 Fabricated Aluminum Intake Manifold - BPP822112
• Drive by Wire Throttle Body - BPP12191019
• LS Swap Oil Pan - BPP81073
• Water Pump - BPPLS126WP
• Injectors and Fuel Rail Kit
• Spark Plugs and Wires
• Harmonic Balancer 
• Throttle Pedal
• Timing Cover
• Valve Covers
• Coil Packs