The BluePrint Engines GM LS Compatible 427 c.i. Engine and T56 Manual Transmission Package delivers extreme LS performance with the driver engagement of a six-speed manual transmission. Designed for high-performance street cars, Pro-Touring builds, restomods, and custom LS swaps, this Standard Edition Builder Series package combines a 830 horsepower 427 c.i. LS-compatible engine, Magnuson TVS2650 supercharger, T56 manual transmission, and Holley Terminator X Max Gen IV EFI System into a complete turnkey drivetrain solution.

The 427 c.i. LS-compatible engine features a BluePrint high-strength cast iron block, aluminum cylinder heads, forged rotating assembly, hydraulic roller camshaft, and 9.5:1 compression ratio designed for boosted performance. The forged 4.125" stroke crankshaft, forged pistons, and forged 6.125" connecting rods provide the durability needed to support serious horsepower applications.

The included Magnuson TVS2650 supercharger provides instant boost response and high airflow capability, while the Holley Terminator X Max Gen IV EFI System delivers precise fuel and ignition management through a complete ECU and harness package calibrated by BluePrint Engines.

Paired with a T56 six-speed manual transmission package, this drivetrain delivers the perfect combination of big-cubic-inch LS power, forced induction performance, and complete driver control.

Key Features:

• Complete GM LS-compatible engine and T56 manual transmission package
• 427 cubic inch displacement
• 830 horsepower
• 800 lb-ft torque
• Standard Edition Builder Series
• Magnuson TVS2650 supercharger
• Holley Terminator X Max Gen IV EFI System
• BluePrint calibrated ECU and wiring harness
• Aluminum cylinder heads
• 9.5:1 compression ratio
• High-strength LSX-style cast iron block
• Increased deck thickness and strength webbing
• Extended cylinder skirt design
• Priority main oiling system
• Six-bolt main configuration
• One-piece rear main seal
• Improved water jacket design
• OEM LS3 front and rear cover compatibility

Engine Internals:

• Forged rotating assembly
• Forged pistons
• Forged crankshaft
• 4.125" stroke crankshaft
• Forged 6.125" connecting rods
• Hydraulic roller camshaft:
  • .624" intake lift
  • .624" exhaust lift
  • 239° intake duration @ .050"
  • 255° exhaust duration @ .050"
  • 114° LSA
• High-flow fuel injectors
• Drive-by-wire throttle body
• Coil packs
• Sensors
• Spark plugs and wires
• Harmonic balancer included
• Water pump included
• Oil pan included
• Valve covers included

Supercharger System:

• Magnuson TVS2650 supercharger
• High-output positive displacement design
• Improved low-RPM response
• Designed for high-horsepower street applications

Holley Terminator X EFI System:

• Terminator X Max Gen IV ECU
• Complete wiring harness
• BluePrint calibration included
• Electronic fuel injection control
• Modern tuning capability

T56 Six-Speed Manual Transmission Package:

• McLeod Super Steel Pro dual-disc clutch
• Steel bell housing
• Billet flywheel
• Engine guard
• Starter included

T56 Gear Ratios:

• 1st: 2.66:1
• 2nd: 1.78:1
• 3rd: 1.30:1
• 4th: 1.00:1
• 5th: 0.80:1
• 6th: 0.63:1

Fitment Applications:

• 1982-2002 Chevrolet Camaro LS swap builds
• 1982-2002 Pontiac Firebird LS swap builds
• Chevrolet Corvette LS conversions
• Chevrolet Chevelle Pro-Touring builds
• Chevrolet Nova LS conversions
• GM restomod vehicles
• Classic muscle car LS swaps
• Custom LS-powered vehicles
• High-performance street and track applications

Installation Notes:

• Verify engine bay clearance before installation due to supercharger height.
• Additional swap components may be required depending on application:
  • Engine mounts
  • Transmission crossmember
  • Driveshaft modification
  • Cooling system upgrades
  • Fuel system upgrades
  • Exhaust modifications
  • Wiring integration
  • Rear differential/drivetrain upgrades
• Holley EFI system includes a BluePrint-calibrated ECU. Do not use standard Holley calibration procedures for this package.
• BluePrint recommends air intake kit BPPLS01013 to maintain correct MAF calculations and dyno calibration.
• Engine/transmission package ships assembled.
• Not intended for pollution-controlled vehicles or dry sump applications.