BluePrint Engines Pro Series LS GM 427 Crate Engine Deluxe Dressed 800 HP w/ Terminator X Max EFI/ Black Pulley Kit

Dominate the roads with this LS GM 427 C.I. crate engine (PSLS4279SCTKB), a street machine king! This LS-compatible assembly comes courtesy of BluePrint Engines, designed with an LSX-style block. It packs 800 horsepower on top of 780 ft.-lbs. of torque with an 11.0:1 ratio. Meaning, it delivers incredible power, all with the support of a forged crankshaft and pistons. Together, it lets the engine sustain serious load and heat without compromising stability.

Crate Engine Features and Benefits:
- LXS-style, high-strength, cast iron engine block with 4.070" bore
- Operates at 800 horsepower and 780 ft.-lbs. torque
- 11.0:1 compression ratio for aggressive throttle response
- Fuel recommendation: 91+ octane
- Increased deck thickness and strength webbing
- 6-bolt main offers stronger bottom end for high-HP applications
- 1-piece rear main seal ensures stronger, leak-free security
- Improved water jacket design for better flow efficiency and temperature control
- Priority main oiling for more stable oil pressure
- Extended cylinder skirt improves piston stability for stronger high-load durability
- Block uses OEM LS3 front and rear covers
- Built-in BluePrint Engines LS3 cylinder heads made of aluminum
- Forged crankshaft with 4.125" stroke and forged 6.125" connecting rods
- Forged pistons for incredible strength and impact resistance
- Rotating assembly is internally balanced for smoother, more stable operation
- Hydraulic roller cam. for lower maintenance and better strength than flat tappet cam.
- Backed by BluePrint Engines' 30-month/50,000-mile warranty

The engine is controlled by a Terminator X Max EFI system built by Holley. Not only is it tuned specially for the engine, but it's also preloaded with a base tuning map. The Bosch LSU 4.9 wideband sensor then enables precise AFR monitoring and advanced closed-loop tuning. You can use it with stock and Holley EFI injectors alike thanks to its eight high-impedance injector drivers.

Terminator X Max Features and Benefits:
- Real-time fuel map learning dynamically adjustable base fuel rate
- Offers onboard Bosch LSU 4.9 wideband control
- Enables accurate AFR readings and closed loop tuning
- Eight high impedance injector drivers
- Drivers are ideal for stock LS injectors and Holley EFI injectors
- Integrated one-bar MAP sensor for naturally aspirated and nitrous setups
- Includes harness support for external higher bar sensors if needed
- Four configurable inputs: 12V, ground, 5V, and frequency
- Two configurable outputs: ground and PWM
- Ideal for electric fans, boost control solenoids, nitrous control, and more
- Free PC tuning software accessible via USB/CAN interface
- USB/CAN interface also allows full laptop control and advance setup
- Integrated 3.5" touchscreen handheld with setup wizard
- Designed with internal data logging and real-time gauge displays
- Complete with base timing map pre-configured for this engine

Also Includes:
- Magnuson TVS2650 supercharger
- Drive-by-wire throttle body
- Valve covers
- Low-profile rear sump oil pan
- Timing cover
- Harmonic balancer
- Coil packs
- Spark plugs and wires
- LS3-style water pump
- Power steering pump with attached reservoir
- 150-amp alternator
- Compact A/C compressor
- Black front accessory drive
- All sensors required for engine to run

Cylinder Head Specifications:
- 70cc chambers
- 2.165" intake / 1.600" exhaust valves
- 259cc intake / 102cc exhaust runners

Camshaft Specifications:
- .624" intake / .624" exhaust lift
- 239 degrees intake / 255 degrees exhaust duration
- @ .050-114 degrees lobe separation

Additional Notes:
- Not for use in pollution-controlled vehicles.
- 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.
- BluePrint Engines recommends using their air intake kit sold under part number BPPLS01013 to ensure correct MAF calculations and dyno calibration are maintained with the providing ECU and tuning.
- The Terminator X Max EFI system is capable of transmission control, but requires an additional transmission harness like BluePrint Engines part number BPP558405 if pairing to a 1996-2008 4L60E or 4l80E.