The BluePrint Engines GM LS Compatible 376 C.I. Builder Series Engine & TKX 5-Speed Manual Transmission Package combines proven LS performance with the crisp shifting and compact design of the Tremec TKX 5-speed manual transmission. Producing 510 horsepower and 440 ft.-lbs. of torque, this complete drivetrain package is engineered for muscle cars, pro touring builds, street rods, and custom LS swap projects seeking modern performance with classic manual driving engagement.

At the heart 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 for responsive power throughout the RPM range. Fuel and ignition are controlled by the included Holley Terminator X Max Gen IV EFI System, providing a complete ECU, engine wiring harness, and BluePrint's preloaded calibration for simplified installation and exceptional drivability.

This version includes the Natural Pulley Kit, offering a clean factory-style aluminum finish while supplying the complete front accessory drive system. The assembled engine and TKX transmission package is shipped ready for installation, making it an ideal turnkey drivetrain for builders looking for reliability, performance, and outstanding value.

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
• 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
• LS3 Intake Manifold
• Drive-by-Wire Throttle Body
• Fuel Rails & Injectors Included
• Coil Packs, Spark Plugs & Wires Included
• Complete Natural Finish Front Accessory Drive
• Premium 91+ Octane Recommended
• Dyno Tested by BluePrint Engines

Transmission Package Includes:

• Tremec TKX 5-Speed Manual Transmission
• McLeod Performance Clutch Assembly
• Bellhousing
• Billet Flywheel
• Hydraulic Release Bearing
• Pilot Bearing
• 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 Natural Finish Front Accessory Drive Kit.
• BluePrint recommends using the BPPLS01013 Air Intake Kit to maintain proper MAF calculations and dyno-tested calibration.
• Premium 91+ octane fuel is recommended.