The BluePrint Engines GM LS Compatible 427 c.i. Engine and T56 Manual Transmission Package combines modern LS performance with the excitement and control of a six-speed manual transmission. Designed for high-performance street builds, Pro-Touring cars, restomods, and classic GM LS swaps, this Standard Edition Builder Series package delivers 605 horsepower and 565 lb-ft of torque with a complete drivetrain solution engineered for reliability and performance.

At the heart of this package is a 427 cubic inch LS-compatible engine featuring a BluePrint high-strength LSX-style cast iron block, aluminum cylinder heads, forged crankshaft, forged pistons, hydraulic roller camshaft, and an 11:1 compression ratio. The included Holley Terminator X Max Gen IV EFI System provides precise fuel control, integrated ECU management, wiring harness, touchscreen setup capabilities, and BluePrint-calibrated programming for dependable performance.

Finished with a Black Pulley Kit, this engine package delivers an aggressive underhood appearance while the included T56 six-speed manual transmission provides quick shifting and highway-friendly cruising. This turnkey drivetrain combination is ideal for Camaro, Firebird, Corvette, Chevelle, Nova, and other custom LS swap applications.

Key Features:

• Complete GM LS-compatible engine and T56 manual transmission package
• 427 cubic inch displacement
• 605 horsepower
• 565 lb-ft torque
• Standard Edition Builder Series
• Black Pulley Kit
• Holley Terminator X Max Gen IV EFI System
• BluePrint calibrated ECU and wiring harness
• LSX-style high-strength cast iron block
• Increased deck thickness and strength webbing
• OEM LS3 front and rear cover compatibility
• Improved water jacket design
• Extended cylinder skirt
• Priority main oiling system
• Six-bolt main design
• One-piece rear main seal
• BluePrint aluminum cylinder heads
• 11:1 compression ratio
• Forged rotating assembly:
  • Forged crankshaft
  • Forged pistons
  • Forged 6.125" connecting rods
• 4.125" stroke crankshaft
• Hydraulic roller camshaft:
  • .624" intake lift
  • .624" exhaust lift
  • 239° intake duration @ .050"
  • 255° exhaust duration @ .050"
  • 114 LSA
• GM-style intake manifold
• Drive-by-wire throttle body
• Fuel injectors and fuel rails
• Coil packs, sensors, spark plugs, and wires included
• Harmonic balancer included
• Black front accessory drive:
  • Alternator
  • Water pump
  • Power steering pump
  • Compact A/C compressor
• Complete T56 manual transmission package:
  • Performance clutch assembly
  • Bell housing
  • Flywheel
  • Starter
• T56 six-speed overdrive capability
• Recommended fuel: 91+ octane

Fitment Applications:

• 1982-2002 Chevrolet Camaro LS swap builds
• 1982-2002 Pontiac Firebird LS swap builds
• Chevrolet Corvette LS conversions
• Chevrolet Chevelle restomod builds
• Chevrolet Nova LS conversions
• GM Pro-Touring vehicles
• Classic muscle car LS swaps
• Street rods
• Custom performance vehicles

Installation Notes:

• Verify engine bay clearance, transmission tunnel clearance, and shifter placement before installation.
• Additional swap components may be required depending on vehicle application:
  • Engine mounts
  • Transmission crossmember
  • Driveshaft modification
  • Cooling system upgrades
  • Fuel system upgrades
  • Exhaust modifications
  • Wiring integration
• Holley Terminator X EFI system includes a BluePrint calibration. Follow BluePrint setup recommendations rather than standard Holley EFI calibration procedures.
• BluePrint recommends air intake kit BPPLS01013 to maintain correct MAF calculations and dyno calibration.
• Retro-fit oil pan fits many 1955-1995 GM front-engine, rear-wheel-drive V8 applications.
• Engine/transmission package ships assembled.