BluePrint Engines BLS3768KB4X4 LS 376 w/ 4L65/70E 4WD, EFI, Blk.

#227BLS3768KB4X4

BluePrint Engines BLS3768KB4X4 LS 376 w/ 4L65/70E 4WD, EFI, Blk.

BluePrint LS 376 delivers 510 horsepower and 440 ft.-lbs. of torque
Black front accessory drive
Holley Terminator X Max EFI system

Front Accessory Drive Finish:

Black

$22,999.00

/each

Factory Shipped

Quantity

Need Help? Call to Order

Add to a list

Select an engine to verify Fitment

Select Engine

Product Summary

Connect and Cruise Crate Engine Type, Oil Pan Included

BluePrint LS 376 delivers 510 horsepower and 440 ft.-lbs. of torque
Black front accessory drive
Holley Terminator X Max EFI system
Aluminum heads, hydraulic roller cam, and 10.7:1 compression

See more details

Key Specs

Crate Engine Type	Connect and Cruise
Compression Ratio	10.7:1
Engine Displacement	376 cu. in.
Camshaft Type	Hydraulic Roller Tappet
Cylinder Head Material	Aluminum

See more specs

Need To Know

Made to Order

This custom item will ship when completed

Truck Shipment

Truck shipments must be pre-paid with a credit card, certified check or money order

Need help?

855.313.9176

View the Help Center

Quick and Easy Returns

Return Policy

Installation Details

Installation Tips

BluePrint Engines Recommends Air Intake Kit BPPLS01013 to ensure correct MAF calculations and Dyno calibration are maintained with the above ECU / tuning.
Ideal for 1/2 ton, 4WD pickups with 3:90 or numerically higher rear gears, and 33-inch tires, and light towing.
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 is NOT intended for heavy duty application or heavy towing.
Engine/Trans Package Ships assembled
The front accessory drive on this engine fits many vehicles, however it is the customer responsibility to accurately measure and confirm fitment. Note this is a low-profile design, but things such as power steering hoses, alternator wiring, and additional fittings/fabrication may be required on some vehicles.

Have a Question?

Call one of our U.S.-based customer service professionals.

Tech Support - Opens at NaNpm (UTC)

BluePrint Engines BLS3768KB4X4 Details

This BluePrint Builder Series LS 376 c.i. Truck Edition engine and 4L65/70E automatic transmission package is a modern high-performance small block setup built for strong truck torque, advanced EFI control, and 4WD-ready versatility. Delivering 510 horsepower and 440 ft.-lbs. of torque, it combines BluePrint aluminum heads, a truck-friendly hydraulic roller cam, hypereutectic pistons, and the Holley Terminator X Max EFI system with a black front accessory drive and a complete 4WD-ready 4L65/70E transmission package for a responsive, swap-ready combination designed for street, trail, and truck performance.

BluePrint LS 376 delivers 510 horsepower and 440 ft.-lbs. of torque
Black front accessory drive
Holley Terminator X Max EFI system
Aluminum heads, hydraulic roller cam, and 10.7:1 compression
Complete 4WD-ready 4L65/70E transmission package includes electronic controller, torque converter, flexplate, starter, and 27-spline output shaft for common 6-bolt transfer case mounting

Block:

BluePrint Engines High Strength Cast Iron 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 Aluminum Cylinder Heads - PS8015
69cc Chamber
2.165" Intake / 1.590" Exhaust Valves
259cc Intake / 102cc Exhaust Runners

Cam Specs:

Hydraulic Roller Cam
.553 Intake / .553 Exhaust Lift
218 Intake / 224 Exhaust Duration
@.050-113 Degree Lobe Separation, 110 ICL

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:

LS Swap Oil Pan - Windage Tray - Pick Up Screen
BluePrint Engines Fuel Injectors and Rail
BluePrint Engine Cast Aluminum Intake
DBW Throttle Body - BPP12191019
Throttle Pedal, and Sensors
Spark Plugs & Wires
Harmonic Balancer
Coil Packs
Black Front Accessory Drive:
LT1 Style 150-amp Alternator
LT1 Style Water Pump
Type II Power Steering Pump
Compact Style Air Conditioner Compressor

Assembled with Complete 4l65/70e 4 Speed Automatic Transmission Package:

4L65/70E Complete Package
4wd Ready Case with 27 Spline 4WD Output Shaft
Electronic Transmission Controller Included
2200-2400 Stall Torque Converter
Flex Plate
Starter
Does NOT Include Transfer Case* Uses Common 4L60/70, 6 Bolt Transfer Case Mounting

CARB Warning

Follow EPA, CARB, and state regulations for engine changes

Emissions warning: this part is for vehicle engine changes, not direct oem engine replacements. In California, engine changes are legal when done in compliance with California bureau of automotive repairs (bar) engine change policy. For assistance, call bar referee at: (800) 622-7733. And see https://bar.Ca.Gov/consumer/smog_check_program/engine_changes. All customers must comply with federal epa mobile source enforcement memorandum no. 1a (and addendum) and all applicable state regulations when conducting engine changes. Improper installation and/or use of this part in California may subject the installer and/or owner to a $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and laws of all states for use of this engine change part on makes or models of vehicles that render them noncompliant with applicable state and/or federal emission laws with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine

CA Prop 65

CARB warning

BluePrint Engines BLS3768KB4X4 Specifications

KEY SPECS
MFG. Part #	BLS3768KB4X4
Brand	BluePrint Engines
Crate Engine Type	Connect and Cruise
Compression Ratio	10.7:1
Engine Displacement	376 cu. in.
Camshaft Type	Hydraulic Roller Tappet
Cylinder Head Material	Aluminum
Piston Material	Hypereutectic Aluminum
Crankshaft Material	Nodular Iron
Carburetor Included	No
Intake Manifold Included	Yes
Distributor Included	No
Valve Covers Included	Yes
Cylinder Heads Included	Yes
Throttle Body Included	Yes
Timing Cover Included	Yes
Oil Pan Included	Yes
Water Pump Included	Yes
Harmonic Balancer Included	Yes
Flexplate Included	No
Flywheel Included	Yes
Air Cleaner Included	No
Spark Plugs Included	Yes
Spark Plug Wires Included	Yes
Computer Included	Yes
Wiring Harness Included	Yes
Reluctor Wheel	58x

GENERAL
Torque	440 ft./lbs.
Horsepower	510 horsepower
Combustion Chamber Volume	69cc
Camshaft Duration (.050 in)	225° intake / 238° exhaust
Camshaft Lift (in)	.612 intake / .585 exhaust
Sold in Quantity	Kit

Ratings & Reviews

Be the first to write a review.

Questions & Answers

Be the first to ask a question.