The BluePrint Engines GM LS Compatible 376 C.I. Builder Series Engine & 4L65/70E Automatic Transmission Package combines proven LS performance with a dependable electronically controlled automatic transmission in a complete turnkey drivetrain. Producing 510 horsepower and 440 ft.-lbs. of torque, this package is engineered for muscle cars, pro touring builds, street rods, and custom LS swap projects requiring outstanding drivability, modern electronic fuel injection, and a premium blackout accessory drive system. (blueprintengines.com)

Built around BluePrint's 376 C.I. LS-compatible Builder Series engine, the package features a high-strength cast iron LS block, BluePrint aluminum cylinder heads, hypereutectic pistons, forged connecting rods, a nodular iron crankshaft, and a hydraulic roller camshaft designed to provide strong mid-range torque and responsive horsepower. The included Holley Terminator X Max Gen IV EFI System provides complete engine management with a pre-loaded BluePrint calibration, ECU, wiring harness, sensors, and handheld programmer for simplified installation and exceptional drivability. (blueprintengines.com)

This version includes the complete Black Front Accessory Drive Kit, featuring a black-finished LT1-style accessory system that includes the alternator, water pump, power steering pump, and A/C compressor for a clean performance appearance. The 4L65/70E automatic transmission is factory assembled to the engine and includes an electronic transmission controller, torque converter, flexplate, and starter, providing a professionally matched drivetrain package ready for installation. (blueprintengines.com)

Key Features:

• 376 C.I. GM LS Compatible Builder Series Engine
• 510 Horsepower / 440 ft.-lbs. Torque
• GM 4L65/70E 4-Speed Automatic Transmission
• Standard Edition Builder Series
• Black Front Accessory Pulley Kit
• Holley Terminator X Max Gen IV EFI System
• Complete ECU & Engine Wiring Harness
• BluePrint High-Strength Cast Iron LS Block
• BluePrint Aluminum Cylinder Heads
• 10.7:1 Compression Ratio
• Hydraulic Roller Camshaft
  • .612" Intake Lift
  • .585" Exhaust Lift
  • 225° Intake Duration @ .050"
  • 238° Exhaust Duration @ .050"
  • 113° Lobe Separation Angle
• Hypereutectic Pistons
• Nodular Iron Crankshaft
• Forged 6.098" Connecting Rods
• BluePrint Cast Aluminum Intake Manifold
• Drive-by-Wire Throttle Body
• Fuel Rails & Injectors Included
• Coil Packs, Spark Plugs & Wires Included
• Complete Black Front Accessory Drive
• Non-Weighted Harmonic Balancer
• Non-Weighted Flexplate
• Premium 91+ Octane Recommended
• Dyno Tested by BluePrint Engines (blueprintengines.com)

Transmission Package Includes:

• GM 4L65/70E Automatic Transmission
• Electronic Transmission Controller
• 2200-2400 RPM Stall Torque Converter
• Flexplate
• Starter
• 13-Pin Transmission Harness

Gear Ratios:

• 1st: 3.06:1
• 2nd: 1.62:1
• 3rd: 1.00:1
• 4th: 0.70:1 (blueprintengines.com)

Fitment Applications:

Designed for custom GM LS-powered vehicles including:

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

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

Installation Notes:

• Ships with the engine and transmission factory assembled.
• Includes a Holley Terminator X Max EFI System with BluePrint calibration.
• Do not overwrite the supplied ECU calibration using the standard Holley setup procedure.
• Includes the complete Black Front Accessory Drive Kit, featuring:
  • LT1-style 150-amp alternator
  • LT1-style water pump
  • Type II power steering pump with remote reservoir
  • Compact air conditioning compressor
• BluePrint recommends Air Intake Kit BPPLS01013 to maintain proper MAF calculations and dyno-tested calibration.
• Premium 91+ octane fuel is recommended.