BluePrint Engines Pro Series GM LS 376 Long Block Crate Engine 520 HP

This engine assembly (PSLS3760CT) delivers 520 horsepower and 495 ft./lbs. of torque using aluminum cylinder heads and a strong cast iron LSX-style block. It features increased deck thickness and strength webbing, along with an extended cylinder skirt and improved water jacket. You'll also get an LS valve cover, an LS swap oil pan, and a harmonic balancer. Ignition is controlled by your own ECU!

Features and Benefits:
- High-strength cast iron GM LSX-style crate engine block
- 520 Horsepower / 495 FT. LBS. Torque
- Compression Ratio: 10.7:1 (91 Octane recommended)
- Features 6-bolt main, 4.0662" bore, and 1-piece rear main seal
- Increased deck thickness and strength webbing
- Extended cylinder skirt and improved water jacket design
- Uses OEM LS3 front/rear covers and priority main oiling
- Nodular iron crankshaft with hypereutectic pistons and 3.622" rotation stroke
- Forged 6.125" crankshaft connecting rods with 150,000 PSI bolts
- Crankshaft is internally balanced at the front and rear
- LS3 aluminum cylinder heads feature 69cc chamber
- Hydraulic roller cam design
- Ignition Timing: controlled by customer's ECU
- Backed by BluePrint Engines' 30-month/50,000-mile warranty

Cylinder Head Specifications:
- 69cc Chambers
- 2.165" Intake / 1.590" Exhaust Valves
- 259cc Intake / 102cc Exhaust Runners

Camshaft Specifications:
- 0.612" Intake / 0.585" Exhaust Lift
- 225 Intake / 238 Exhaust Duration
- @ .050-113 Degree Lobe Separation

Also Includes:
- LS Valve Cover
- LS Swap Oil Pan
- Harmonic Balancer

Please Note:
- Engine is NOT shipped with engine controller kit. Must purchase separately for your application.