This BluePrint Engines 376 cubic inch GM LS Pro Series crate engine is a base dressed, fuel-injected build rated at 530 horsepower and 495 lb-ft of torque. It is built on a cast iron LSX-style 6-bolt main block with LS3-style aluminum heads and a hydraulic roller cam, and it comes with a Holley Terminator X Max ECU and harness carrying BluePrint calibration, a drive-by-wire throttle body, injectors, coils, and a GM plastic intake manifold.
Specifications:
- Displacement: 376 c.i. (6.2L)
- Horsepower: 530 HP
- Torque: 495 lb-ft
- Bore: 4.0662 in
- Stroke: 3.622 in
- Compression ratio: 10.7:1
- Block: High-strength cast iron LSX-style, increased deck thickness and strength webbing, extended cylinder skirt, priority main oiling, improved water jacket, 6-bolt main, 1-piece rear main seal, uses OEM LS3 front and rear covers
- Crankshaft: Nodular iron, 3.622 in stroke
- Connecting rods: 6.125 in with 150,000 PSI bolts
- Pistons: Hypereutectic, flat, 2cc
- Cylinder heads: BluePrint aluminum LS3-style PS8015, 69cc chamber, 2.165 in intake / 1.590 in exhaust valves, 259cc intake / 102cc exhaust runners
- Camshaft: Hydraulic roller, three bolt, .612 in intake / .585 in exhaust lift, 225/238 duration at .050, 113 deg LSA
- Induction: Fuel injected: Holley Terminator X Max EFI with DBW throttle body (BPP12191019), GM plastic intake manifold, and 42 lb injectors
- Engine management: Holley Terminator X Max Gen IV Complete ECU/Harness EFI System (Holley 550-931) with BluePrint calibration and pre-configured base timing map
- Balance: Internally balanced front and rear
- Fuel: 91+ octane
- Part number: PSLS37630CTF
What's Included: This is a base dressed, fuel-injected engine with the Holley Terminator X Max ECU and harness. It comes with: Holley Terminator X Max Gen IV Complete ECU/Harness EFI System (Holley 550-931); LS Swap Oil Pan - Windage Tray - Pick Up Screen; DBW Throttle Body (BPP12191019); Fuel Injectors (42 lbs. @ 58 psi); Water Pump (BPPLS126WP); Throttle Pedal, and Sensors; GM Plastic Intake Manifold; Spark Plugs & Wires; Harmonic Balancer; Coil Packs; Fuel Rail. The ECU and harness are shown in the BluePrint header specifications and features rather than in its Also Includes list. Transmission control needs an additional harness such as BPP558405, which is not included.
Engine Platform: Built to the GM LS platform (LSX-style block, BluePrint Pro Series). The engine has a 58x reluctor wheel and 4x cam sensor, a knock sensor provision on the side of the block, a cam sensor in the timing cover, and uses EV6 type injectors.
Note: Specifications and included components on this listing come from the closest matching BluePrint configuration, the 530 horsepower base dressed Holley Terminator X EFI engine (BluePrint SKU PSLS3763CTF). Confirm details for part number PSLS37630CTF before ordering.
Prop 65 Warning: This product can expose you to chemicals known to the State of California to cause cancer and reproductive harm. For more information visit www.P65Warnings.ca.gov.
FAQ
What comes on the PSLS37630CTF base dressed engine?
It includes a Holley Terminator X Max Gen IV Complete ECU/Harness EFI System (Holley 550-931), an LS swap oil pan with windage tray and pick up screen, a DBW throttle body (BPP12191019), 42 lb at 58 psi fuel injectors, a water pump (BPPLS126WP), a throttle pedal and sensors, a GM plastic intake manifold, spark plugs and wires, a harmonic balancer, coil packs, and a fuel rail. Transmission control needs an additional harness such as BPP558405, which is not included.
How much power does it make?
It is rated at 530 horsepower and 495 lb-ft of torque with 10.7:1 compression, and the specified fuel is 91+ octane.
What ECU and harness come with it?
A Holley Terminator X Max Gen IV Complete ECU/Harness EFI System (Holley 550-931) with BluePrint calibration is included. It features real-time fuel map learning, an onboard Bosch LSU 4.9 wideband, 8 high-impedance injector drivers, a 1-bar MAP sensor, and free PC tuning software with an integrated 3.5 in touchscreen handheld.
Should I run the Holley setup wizard?
No. BluePrint warns that running the Holley setup wizard erases the BluePrint calibration, which includes a pre-configured base timing map for this engine.
What intake kit does BluePrint recommend?
BluePrint recommends Air Intake Kit BPPLS01013 for MAF and dyno calibration. It is not stated as included.

