The BluePrint Engines GM LS Compatible 427 c.i. Pro-Series Engine and 4L80E Automatic Transmission Package combines massive supercharged horsepower with the strength of a heavy-duty automatic transmission. Designed for Pro-Touring builds, restomods, street machines, 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, performance-built 4L80E automatic transmission, and Holley Terminator X Max EFI System for a complete turnkey drivetrain solution.

The 427 c.i. Pro-Series engine is built around a high-strength LS-compatible cast iron block with premium aluminum cylinder heads, a forged rotating assembly, hydraulic roller camshaft, and a 9.5:1 compression ratio engineered for forced induction. The Gen 6 3.0L Whipple twin-screw supercharger delivers exceptional airflow, instant boost, and tremendous low-end torque while maintaining excellent drivability.

The included Holley Terminator X Max Gen IV EFI System provides complete engine and transmission management through a BluePrint-calibrated ECU and wiring harness. Combined with a performance-built 4L80E automatic transmission, this drivetrain package is engineered to reliably handle high horsepower for both street and track applications.

Key Features:

• Complete GM LS-compatible engine and 4L80E automatic 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
• Sensors
• 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
• Designed for premium pump fuel

Holley Terminator X Max EFI:

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

4L80E Automatic Transmission Package:

• Performance-built 4L80E four-speed automatic transmission
• Electronic transmission controller
• 3000+ stall torque converter
• Flexplate included
• Starter included

4L80E Gear Ratios:

• 1st: 2.48:1
• 2nd: 1.48:1
• 3rd: 1.00:1
• 4th: 0.75:1
• Reverse: 2.08:1
• 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 and transmission package ships assembled and ready for installation.
• Intended for off-road and exempt applications where permitted.