Overview

BluePrint Engines Pro Series Chevy LS 376 C.I.D. 525 HP EFI Base Dressed Long Block Crate Engines

BluePrint Engines Pro Series Chevy LS 376 c.i.d. 525 hp Holley Terminator X EFI base dressed engines are formidable fusions of strength, precision, and performance, anchored by BluePrint's high-strength cast iron LSX-style block. They churn out a commanding 525 hp and 460 lb.-ft. of torque, with a 10.7:1 compression ratio that ensures both power and efficiency.

This Pro Series engine 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 the Holley Terminator X Max system, LS3 fabricated aluminum intake manifold, and a matched injector and fuel rail kit.

Altogether, this engine is engineered to deliver relentless performance with rock-solid reliability--perfect for enthusiasts who demand power without compromise.

Block specs:
* Increased deck thickness and strength webbing
* Utilizes OEM LS3 front and rear covers
* Improved water jacket design
* Extended cylinder skirt
* One-piece rear main seal
* Priority main oiling
* 4.0622 in. bore
* 6-bolt main

Rotating assembly specs:
* Nodular iron crankshaft
* 3.622 in. stroke
* 6.098 in. connecting rods with 150,000 psi bolts
* Hypereutectic pistons
* Internally balanced front and rear

BluePrint LS3 aluminum cylinder heads specs:
* 69cc chamber
* 2.165 in. intake/1.590 in. exhaust valves
* 259cc intake/102cc exhaust runners

Hydraulic roller cam specs:
* .612 in. intake/.585 in. exhaust lift
* 225 degrees intake/238 degrees exhaust duration at .050 in. lift
* 113 degree lobe separation

Also includes:
* LS3 fabricated aluminum intake manifold
* Drive-by-Wire throttle body adds modern responsiveness
* LS swap oil pan ensures seamless integration
* Water pump
* Injectors and fuel rail kit
* Spark plugs and wires
* Harmonic balancer
* Throttle pedal
* Timing cover
* Valve covers
* Coil packs

Holley Terminator X Max features and benefits:

* Real time fuel map learning simplifies tuning
* On-board Bosch LSU 4.9 wideband control enables accurate AFR readings and closed loop tuning
* Eight high-impedance injector drivers ideal for stock LS 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
* Four configurable inputs (12 V, Ground, 5 V, Frequency) and two outputs (Ground, PWM)
* Free PC Tuning Software via USB/CAN Interface for Full Laptop Control and Advance Setup
* Integrated 3.5 in. touch screen handheld with Setup Wizard, internal data logging, and real time gauge displays
* Terminator X Max ECU includes base timing map pre-configured for this engine

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