The BluePrint Engines GM LS Compatible 376 C.I. Builder Series Engine & 4L65/70E Automatic Transmission Package delivers modern LS performance with the convenience of a complete turnkey drivetrain. Producing 530 horsepower and 480 ft.-lbs. of torque, this package combines BluePrint's proven LS-compatible 376 C.I. engine with a professionally matched 4L65/70E electronically controlled automatic transmission, making it an ideal choice for muscle cars, street rods, trucks, and LS swap applications.

Built for dependable street performance, the 376 C.I. Builder Series engine features a high-strength LS-compatible block, BluePrint LS3 aluminum cylinder heads, forged internals, and a hydraulic roller camshaft designed for excellent torque production and drivability. The included Holley Terminator X Max Gen IV EFI System provides simplified tuning, modern fuel management, and reliable performance with a BluePrint-calibrated ECU.

This package includes the Natural Front Accessory Drive Kit, providing a clean factory-style aluminum appearance with an alternator, water pump, power steering pump, and A/C compressor. The factory-assembled engine and transmission combination reduces installation time while ensuring proper drivetrain compatibility.

Key Features:

• 376 C.I. GM LS Compatible Builder Series Engine
• 530 Horsepower / 480 ft.-lbs. Torque
• GM 4L65/70E Automatic Transmission
• Standard Edition Builder Series
• Natural Front Accessory Pulley Kit
• Holley Terminator X Max Gen IV EFI System
• BluePrint LS-Compatible Cast Iron Block
• BluePrint LS3 Aluminum Cylinder Heads
• 10.7:1 Compression Ratio
• Hydraulic Roller Camshaft
  • .553" Intake Lift
  • .553" Exhaust Lift
  • 218° Intake Duration @ .050"
  • 224° Exhaust Duration @ .050"
  • 113° Lobe Separation Angle
• Forged Steel Crankshaft
• Forged Connecting Rods
• Hypereutectic Pistons
• LS3-Style Intake Manifold
• Drive-by-Wire Throttle Body
• Fuel Rails & Injectors Included
• Coil Packs, Spark Plugs & Wires Included
• Low Profile Rear Sump Oil Pan
• Complete ECU & Engine Harness
• Premium 91+ Octane Recommended
• Dyno Tested by BluePrint Engines

Transmission Package Includes:

• GM 4L65/70E 4-Speed Automatic Transmission
• Electronic Transmission Controller
• Torque Converter
• Flexplate
• Starter
• Transmission Wiring Harness

Gear Ratios:

• 1st: 3.06:1
• 2nd: 1.63:1
• 3rd: 1.00:1
• 4th: 0.70:1

Fitment Applications:

Designed for GM LS swap applications including:

• Chevrolet Camaro
• Pontiac Firebird
• Chevrolet Corvette
• Chevrolet Chevelle
• Chevrolet Nova
• Chevrolet C10 Trucks
• GMC Trucks
• GM G-Body Vehicles
• Street Rods
• Pro Touring Builds
• Custom Performance Vehicles

Note: Verify engine mounts, transmission crossmember, driveshaft length, cooling system, wiring, and accessory clearance before installation.

Installation Notes:

• Ships with the engine and transmission factory assembled.
• Includes Holley Terminator X Max EFI System with BluePrint factory calibration.
• Do not overwrite the supplied ECU calibration using standard Holley setup procedures.
• Includes Natural Front Accessory Drive Kit:
  • LS-style alternator
  • Water pump
  • Power steering pump
  • Compact A/C compressor
• BluePrint recommends proper intake configuration to maintain factory MAF calibration.
• Verify transmission controller wiring and driveshaft compatibility before installation.
• Premium 91+ octane fuel recommended.