Bring modern LS performance and turnkey reliability to your classic build with the BluePrint Engines GM LS Compatible 376 c.i. Engine and 4L65/70E Automatic Transmission Package. Delivering 530 horsepower and 495 lb-ft of torque, this complete drivetrain combination is designed for enthusiasts looking for dependable street performance with the convenience of a ready-to-run engine and transmission package.

The Standard Edition Builder Series 376 LS-compatible engine features a high-strength LSX-style block, BluePrint aluminum cylinder heads, hydraulic roller camshaft, hypereutectic pistons, and a nodular iron crankshaft for long-term durability. The included Holley Terminator X Max EFI system provides precise fuel and spark control, easy tuning capability, and excellent drivability for street and performance applications.

Finished with a black pulley kit, this package delivers a clean, aggressive underhood appearance while providing a complete LS drivetrain solution paired with a proven 4L65/70E automatic transmission. Ideal for Pro-Touring builds, muscle cars, street rods, and LS swap applications where performance, reliability, and ease of installation are priorities.

Key Features:

• Complete GM LS-compatible engine and transmission package
• 376 cubic inch displacement
• 530 horsepower / 495 lb-ft torque
• BluePrint Engines LSX-style high-strength cast iron block
• BluePrint aluminum cylinder heads
• Hydraulic roller camshaft
  • .612" intake lift
  • .585" exhaust lift
  • 225° intake / 238° exhaust duration @ .050"
  • 113 LSA
• 10.7:1 compression ratio
• Hypereutectic pistons
• Nodular iron crankshaft
• 3.622" stroke with 6.098" connecting rods
• Holley Terminator X Max Gen IV EFI system with ECU and harness
• 4L65/70E automatic transmission included
• Black pulley kit for a clean performance appearance
• Designed for 91+ octane fuel

Fitment Applications:

• Chevrolet Camaro LS swap builds
• Pontiac Firebird LS swap builds
• Chevrolet Nova LS conversions
• Chevrolet Chevelle LS conversions
• Classic GM muscle car LS conversions
• Street rods and custom performance vehicles
• Pro-Touring applications
• Custom chassis builds

Installation Notes:

• Verify engine bay clearance, accessory placement, and transmission tunnel compatibility before installation.
• Additional swap components may be required depending on vehicle application, including:
  • Engine mounts
  • Transmission crossmember
  • Driveshaft modifications
  • Cooling system upgrades
  • Fuel system upgrades
  • Exhaust modifications
  • Wiring integration
• Professional installation is recommended for custom LS swap applications.
• Engine package utilizes OEM LS3 front and rear cover compatibility.