The BluePrint Engines GM LS Compatible 376 C.I. Builder Series Engine & Tremec TKX 5-Speed Manual Transmission Package combines impressive LS performance with the compact size and smooth shifting of the TKX manual transmission. Producing 530 horsepower and 495 ft.-lbs. of torque, this complete turnkey drivetrain is designed for muscle cars, pro touring builds, street rods, and custom LS swap projects where performance, reliability, and everyday drivability are equally important.

At the core of the package is BluePrint's 376 C.I. LS-compatible Builder Series engine, featuring a high-strength LSX-style cast iron block, BluePrint aluminum cylinder heads, hypereutectic pistons, forged connecting rods, a nodular iron crankshaft, and a hydraulic roller camshaft that delivers strong mid-range torque and excellent top-end horsepower. Fuel and ignition are controlled by the included Holley Terminator X Max Gen IV EFI System, complete with ECU, wiring harness, sensors, and BluePrint's dyno-tested calibration for outstanding drivability and simplified installation.

This version includes the complete Natural Front Accessory Drive Kit, providing a clean factory-style aluminum appearance while supplying the alternator, power steering pump, water pump, and air conditioning compressor. The TKX 5-speed transmission is factory assembled to the engine and includes a complete McLeod clutch package, making installation faster while providing a professionally matched drivetrain package.

Key Features:

• 376 C.I. GM LS Compatible Builder Series Engine
• 530 Horsepower / 495 ft.-lbs. Torque
• Tremec TKX 5-Speed Manual Transmission
• Standard Edition Builder Series
• Natural Front Accessory Pulley Kit
• Holley Terminator X Max Gen IV EFI System
• Complete ECU & Engine Wiring Harness
• BluePrint High-Strength LSX-Style Cast Iron 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 Natural Finish Front Accessory Drive
• Harmonic Balancer
• 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 Corvette
• Chevrolet Chevelle
• Chevrolet Nova
• 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 Natural Finish Front Accessory Drive Kit.
• BluePrint recommends Air Intake Kit BPPLS01013 to maintain proper MAF calculations and dyno-tested calibration.
• Premium 91+ octane fuel is recommended.