Blueprint 376 LS Crate Engine 495HP – Pro Series Truck Engine

The Blueprint Engines 376ci LS Pro Series crate engine delivers a strong 495 horsepower and 490 lb-ft of torque, making it the perfect choice for LS swaps, performance trucks, and high-performance street builds. Built with premium internals and dyno-proven Blueprint performance, this engine is designed for enthusiasts who want reliable naturally aspirated LS power with modern drivability.

Whether you’re upgrading a GM truck or completing a full LS swap build, this Blueprint 376 LS engine offers proven performance, durability, and easy integration into a wide range of applications.

Engine Performance Specs

• Horsepower: 495 HP
• Torque: 490 lb-ft
• Compression Ratio: 10.7:1
• Fuel Requirement: 91+ octane
• Camshaft: Hydraulic roller (.553/.553 lift, 218/224 duration @ .050)
• Reluctor: 58X crank / 4X cam

Key Features

• Blueprint Engines LS3 aluminum cylinder heads
• Blueprint hydraulic roller camshaft
• Hypereutectic pistons
• Nodular iron crankshaft
• LSX-style high-strength cast iron block
• Internally balanced rotating assembly
• Designed specifically for truck applications
• Dyno-tested Blueprint performance

Note:

This engine does NOT include ECU or wiring harness.

Blueprint LS 376 Block Specs

• BluePrint LSX-style cast iron block
• Increased deck thickness & reinforced webbing
• Priority main oiling system
• Extended cylinder skirts
• 1-piece rear main seal
• 4.0662” bore
• 6-bolt main caps
• Block machined in the USA

Rotating Assembly

• Nodular iron crankshaft
• 3.622” stroke
• 6.098–6.125” rods with 150,000 PSI bolts
• Hypereutectic pistons
• Internally balanced

Cylinder Heads

• Blueprint aluminum LS3 heads (PS8015)
• 69cc chambers
• 2.165” intake / 1.590” exhaust valves
• 259cc intake runners
• 102cc exhaust runners

Camshaft Specs:

• Hydraulic roller cam
• .553” intake / .553” exhaust lift
• 218 / 224 duration @ .050
• 110 ICL

Delivers strong midrange torque and aggressive LS performance sound.

Included Components:

• LS low-profile aluminum oil pan
• GM-style smart coils
• L92 truck intake manifold
• Fuel injectors & fuel rail
• Truck harmonic balancer
• Spark plugs & wires
• Water pump
• Valve covers
• Oil pump
• Dipstick

Important Fitment & Install Notes:

This Blueprint 376 LS crate engine is designed primarily for truck applications and LS swap builds.

• Professional installation & tuning required
• 2100 stall converter recommended for peak performance
• Not intended for heavy-duty towing
• May require crank signal converter for pre-2007 trucks
• Factory oil pan or throttle body may need adaptation
• Fuel system, wiring, and sensor modifications may be required
• AFM/DOD/VVT must be tuned out if present

This engine does not include ECU or wiring harness.