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BluePrint Engines

BluePrint Engines Pro Series GM LS 376 C.I. 510HP Deluxe Dressed Crate Engine w/Black Pulley Kit/ Holley Terminator X EFI System PSLS37681CTFKB

PART NUMBER:
PSLS37681CTFKB
MPN:
PSLS37681CTFKB
Availability:
Ships from Manufacturer
Shipping:
Free Over $98 in US 48
Type:
Crate Engines
Block:
High Strength Cast Iron (LSX Style) Block
Cylinder Heads:
Aluminum
Crankshaft:
Nodular Iron Crankshaft
Crankshaft Reluctor:
58x
Crankshaft Stroke (in.):
3.622
Rod Length (in.):
6.098
Rod Bolts Tensile:
150,000 PSI
Piston Bore (in.):
4.0662
Piston Material:
Hypereutectic
Compression Ratio:
10.7:1
Camshaft Included:
Yes
Electronics Inlcuded:
Yes
Quantity:
Sold Individually
Notes:
This engine requires a non-weighted flex plate/flywheel.
  • BluePrint Engines Pro Series GM LS 376 C.I. 510HP Deluxe Dressed Crate Engine w/Black Pulley Kit/ Holley Terminator X EFI System PSLS37681CTFKB
  • BluePrint Engines Pro Series GM LS 376 C.I. 510HP Deluxe Dressed Crate Engine w/Black Pulley Kit/ Holley Terminator X EFI System PSLS37681CTFKB
  • BluePrint Engines Pro Series GM LS 376 C.I. 510HP Deluxe Dressed Crate Engine w/Black Pulley Kit/ Holley Terminator X EFI System PSLS37681CTFKB
  • BluePrint Engines Pro Series GM LS 376 C.I. 510HP Deluxe Dressed Crate Engine w/Black Pulley Kit/ Holley Terminator X EFI System PSLS37681CTFKB
$13,449.00

Description

BluePrint Engines Pro Series GM LS 376 C.I. 510HP Deluxe Dressed Crate Engine w/Black Pulley Kit/ Holley Terminator X EFI System PSLS37681CTFKB

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 Holley EFI Equipped engine has a fully calibrated ECU by BluePrint Engines. Please DO NOT follow the Holley EFI manual for the calibration of the ECU.
This engine requires a non-weighted flex plate/flywheel
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

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

Every BluePrint engine is Dyno tested and has strict parameters to pass and
be shipped to the customer. All parts are tested before being released for production:
• DC and Pneumatic assembly tools calibrated daily
• Fatigue Testing
• Durability Testing
• Random subassembly testing
• Quality system is ISO 9001: 2015 certified
• Traceable engine “DNA” electronic barcode record keeping of
manufacturing and performance data

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Warranty Information

Standard Warranty: 30-months / 50,000 Miles - Fully Transferrable Extended Warranty: 48-months / Unlimited Miles - Fully Transferrable
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