BluePrint GM LS 376 c.i. ProSeries Crate Engine – 530 HP, Long Block

Unleash 530 HP of LS Power with the BluePrint 376 ProSeries Engine

For those chasing uncompromising power and durability, the BluePrint GM LS 376 c.i. ProSeries Long Block delivers 530 horsepower and 495 ft.-lbs. of torque. Built on a high-strength cast iron block, this LS engine is packed with premium components like BluePrint LS3 aluminum heads, a hydraulic roller cam, and a nodular iron crankshaft. Whether you’re building a high-performance street machine, track car, or off-road beast, this engine provides the foundation you need for unmatched performance.

What’s Included?

This ProSeries long block comes ready for customization with:

• BluePrint LS3 Aluminum Cylinder Heads: Optimized for airflow and power.
• LS Valve Covers for a sleek, professional appearance.
• LS Swap Oil Pan for versatility in installations.
• Harmonic Balancer included for smooth operation.

Performance Highlights

• Horsepower & Torque: 530 HP / 495 FT. LBS.
• Compression Ratio: 10.7:1 – Runs efficiently on premium pump gas.
• Camshaft Specs:
  • Lift: .612" intake / .585" exhaust.
  • Duration (@ .050): 225° intake / 238° exhaust.
  • Lobe Separation Angle: 113° for a balance of power and drivability.
• Cylinder Heads:
  • 69cc combustion chambers for efficient compression.
  • Large 2.165" intake valves and 1.590" exhaust valves for superior airflow.
  • 259cc intake runners and 102cc exhaust runners maximize engine breathing.

Built for Durability

Block Features:

• BluePrint High-Strength Cast Iron Block:
  • Increased deck thickness and strength webbing for durability.
  • Priority main oiling for improved reliability under high loads.
  • 6-bolt mains and a 4.0662" bore for maximum stability.
  • Improved water jacket design for efficient cooling.

Rotating Assembly:

• Nodular Iron Crankshaft with a 3.622" stroke for smooth power delivery.
• Forged 6.125" Connecting Rods with 150,000 PSI bolts for extreme strength.
• Hypereutectic Pistons for reliability under high-compression conditions.

Why Choose the BluePrint LS 376 c.i. ProSeries Engine?

This engine is the ideal solution for enthusiasts looking to upgrade their Camaro, Corvette, C10, or Chevelle with modern LS performance. With a proven design and premium components, this ProSeries engine is perfect for street, strip, or off-road applications.

Key Specifications:

• Horsepower: 530 HP
• Torque: 495 FT. LBS.
• Compression Ratio: 10.7:1
• Camshaft Type: Hydraulic roller for aggressive performance and reliability.

Important Notes:

• This engine does not include an engine controller kit; it must be purchased separately to suit your application.
• Ignition timing is controlled by your ECU, providing flexibility for tuning.