The BluePrint Engines GM LS Compatible 427 c.i. Pro-Series Engine and T56 Manual Transmission Package combines exceptional LS performance with the precision of a six-speed manual transmission. Designed for Pro-Touring builds, high-performance street cars, restomods, and custom LS swaps, this Standard Edition Builder Series package includes an 800 horsepower 427 c.i. Pro-Series LS-compatible engine, Gen 6 3.0L Whipple Supercharger, T56 six-speed manual transmission, and Holley Terminator X Max EFI System for a complete turnkey drivetrain solution.

The Pro-Series 427 features a heavy-duty LS-compatible cast iron block, premium aluminum cylinder heads, forged rotating assembly, hydraulic roller camshaft, and a 9.5:1 compression ratio optimized for forced induction. Equipped with the Gen 6 3.0L Whipple twin-screw supercharger, this engine delivers immediate throttle response, outstanding low-end torque, and impressive horsepower throughout the RPM range.

The included Holley Terminator X Max Gen IV EFI System provides fully integrated engine management with a BluePrint-calibrated ECU, complete wiring harness, and electronic transmission capability. Paired with the legendary T56 six-speed manual transmission, this drivetrain package offers exceptional durability and driver engagement for serious street and track applications.

Key Features:

• Complete GM LS-compatible engine and T56 manual transmission package
• 427 cubic inch displacement
• 800 horsepower
• 770 lb-ft torque
• Standard Edition Builder Series
• Gen 6 3.0L Whipple twin-screw supercharger
• Holley Terminator X Max Gen IV EFI System
• BluePrint calibrated ECU and wiring harness
• High-flow aluminum cylinder heads
• 9.5:1 compression ratio
• Heavy-duty LS-compatible cast iron block
• Six-bolt main design
• Priority main oiling system
• One-piece rear main seal
• Improved water jacket design
• OEM LS3 front and rear cover compatibility

Engine Internals:

• Forged steel crankshaft
• Forged pistons
• Forged 6.125" H-beam connecting rods
• 4.000" stroke crankshaft
• Hydraulic roller camshaft
• High-performance valve springs
• Hardened pushrods
• Roller rocker arms
• High-flow fuel injectors
• Drive-by-wire throttle body
• Coil packs
• Spark plugs and wires
• Water pump
• Harmonic balancer
• Oil pan
• Valve covers

Supercharger System:

• Whipple Gen 6 3.0L twin-screw supercharger
• High-efficiency intercooler system
• Instant boost response
• High-volume airflow design
• Black finish supercharger assembly
• Designed for premium pump fuel applications

Holley Terminator X Max EFI:

• Terminator X Max Gen IV ECU
• Complete engine wiring harness
• BluePrint performance calibration
• Electronic fuel injection management
• Advanced data logging capability

T56 Six-Speed Manual Transmission Package:

• Performance T56 six-speed manual transmission
• McLeod Super Street Pro dual-disc clutch
• Steel bellhousing
• Billet steel flywheel
• Starter
• Pilot bearing
• Hydraulic release bearing

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
• Recommended fuel: Premium 91+ octane

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 muscle car restorations
• Restomod builds
• Custom LS-powered street and track vehicles

Installation Notes:

• Verify engine bay and hood clearance due to the Whipple Gen 6 supercharger.
• Additional swap components may be required:
  • Engine mounts
  • Transmission crossmember
  • Driveshaft modification
  • Upgraded cooling system
  • High-capacity fuel system
  • Custom exhaust system
  • Wiring integration
  • Rear axle/driveline upgrades
• Holley Terminator X Max ECU is pre-calibrated by BluePrint Engines.
• BluePrint recommends the specified intake system to maintain proper MAF calibration.
• Engine/transmission package ships assembled and ready for installation.
• Intended for off-road and exempt applications where permitted.