This is a BluePrint Engines 376 cubic inch GM LS Pro Series crate engine, supplied as a long block without an intake, ECU, or wiring harness, rated at 530 horsepower and 495 lb-ft of torque. It is built on a high-strength LSX-style cast iron block with a nodular iron crankshaft, hypereutectic pistons, a hydraulic roller cam, and LS3-style aluminum heads. Every BluePrint crate engine is dyno tested and ships with a dyno printout.
Specifications:
- Displacement: 376 c.i.
- 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, 6-bolt main, priority main oiling, uses OEM LS3 front and rear covers, 1-piece rear main seal
- Crankshaft: Nodular iron, 3.622 in stroke
- Connecting rods: 6.125 in with 150,000 PSI bolts
- Pistons: Hypereutectic, flat, 2cc
- Cylinder heads: BluePrint LS3-style aluminum PS8015, 69cc chamber, 2.165 in intake / 1.590 in exhaust valves, 259cc intake runners
- Camshaft: Hydraulic roller, 3-bolt, .612 in intake / .585 in exhaust lift, 225/238 duration at .050, 113 deg LSA
- Configuration: Long block, no ECU or harness
- Balance: Internally balanced front and rear
- Fuel: 91+ octane
- Part number: PSLS37630CT
What's Included: Long block assembly with BluePrint LS3-style aluminum heads and a hydraulic roller cam, plus LS valve covers, an LS-swap oil pan, and a harmonic balancer. It does not include an intake manifold, throttle body, fuel injection, ECU, or wiring harness, which the buyer supplies for their own engine controller package.
Engine Platform: Built to the GM LS platform, Pro Series. BluePrint recommends its air intake kit BPPLS01013 to keep MAF calculations and dyno calibration correct.
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 is included with the PSLS37630CT?
It is a long block with BluePrint LS3-style aluminum heads and a hydraulic roller cam, plus LS valve covers, an LS-swap oil pan, and a harmonic balancer. It does not include an intake, ECU, or wiring harness.
How much power does the 376 LS make?
It is rated at 530 horsepower and 495 lb-ft of torque, and ships with a dyno printout of its tested results.
Does it come with an ECU or harness?
No. It is sold for customers using their own engine controller package, so the ECU, wiring harness, and intake are not included.
What fuel does it require?
BluePrint lists 91 octane or higher for this 10.7:1 compression engine.
Is it internally or externally balanced?
It is internally balanced at the front and rear, so it uses the included harmonic balancer and a matching internal-balance flywheel or flex plate.
