The BluePrint Engines GM LS Compatible 376 C.I. Builder Series Engine & Tremec TKX 5-Speed Manual Transmission Package delivers modern LS performance with the compact size and crisp shifting of the TKX 5-speed. Producing 510 horsepower and 440 ft.-lbs. of torque, this turnkey drivetrain is ideal for muscle cars, pro touring builds, street rods, and custom LS swap projects where performance, reliability, and driving enjoyment are equally important.

At the heart of the package is BluePrint's 376 C.I. LS-compatible Builder Series engine, featuring 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 engineered to deliver strong mid-range torque and excellent top-end power. The included Holley Terminator X Max Gen IV EFI System features a complete ECU, wiring harness, sensors, and a BluePrint pre-loaded calibration for outstanding drivability and simplified installation.

This version includes the complete Black Front Accessory Drive Kit, providing a premium blackout appearance with an LT1-style alternator, water pump, power steering pump, and compact air conditioning compressor. The engine and TKX transmission are factory assembled before shipping, reducing installation time and ensuring a professionally matched drivetrain package.

Key Features:

• 376 C.I. GM LS Compatible Builder Series Engine
• 510 Horsepower / 440 ft.-lbs. Torque
• Tremec TKX 5-Speed Manual 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
• LS3 Cast Aluminum Intake Manifold
• Drive-by-Wire Throttle Body
• BluePrint Fuel Rails & Injectors
• Coil Packs, Spark Plugs & Wires Included
• LS Swap Oil Pan
• Harmonic Balancer
• Complete Black Front Accessory Drive
• Premium 91+ Octane Recommended
• Dyno Tested by BluePrint Engines

Transmission Package Includes:

• Tremec TKX 5-Speed Manual Transmission
• McLeod Super Street Pro Twin Disc Clutch
• Hydraulic Throw-Out Bearing
• Bellhousing
• Billet Flywheel
• Starter

TKX Gear Ratios:

• 1st: 2.87:1
• 2nd: 1.89:1
• 3rd: 1.28:1
• 4th: 1.00:1
• 5th: 0.68:1

Fitment Applications:

Designed for custom GM LS-powered vehicles including:

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

Note: Verify engine mounts, transmission tunnel clearance, clutch hydraulic compatibility, driveshaft length, cooling system, and crossmember requirements 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 reservoir
  • Compact air conditioning compressor
• BluePrint recommends using Air Intake Kit BPPLS01013 to maintain proper MAF calculations and dyno-tested calibration.
• Premium 91+ octane fuel is recommended.