The BluePrint Engines GM LS Compatible 427 c.i. Pro Series Engine is built for enthusiasts who demand extreme LS performance in a turnkey package. Featuring a Magnuson TVS2650 supercharger, Deluxe Dressed configuration, Natural Pulley Kit, and Holley Terminator X Max Gen IV EFI System, this Pro Series 427 delivers approximately 830 horsepower and 800 lb-ft of torque for high-performance street builds, Pro-Touring vehicles, and custom LS swap applications.

Engineered around BluePrint’s LSX-style high-strength cast iron block, this 427 c.i. powerhouse combines a forged rotating assembly, LS3 aluminum cylinder heads, hydraulic roller camshaft, and forced induction to provide exceptional power and durability. The included Holley Terminator X Max EFI System comes with a BluePrint-calibrated ECU and harness, providing simplified installation and optimized engine management.

The Deluxe Dressed Natural Pulley Kit provides a clean, premium underhood appearance while including the front accessory drive components needed for a complete LS swap installation. This engine is ideal for Camaro, Firebird, Corvette, Chevelle, Nova, and other performance applications requiring serious horsepower in a compact LS-compatible package.

Key Features:

• GM LS Compatible 427 cubic inch Pro Series Engine
• 830 horsepower
• 800 lb-ft torque
• Deluxe Dressed configuration
• Natural Pulley Kit
• Magnuson TVS2650 Supercharger
• 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 reinforced 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 LS3 aluminum cylinder heads
• 9.5:1 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
• 90 lb/hr fuel injectors
• Drive-by-wire throttle body
• Complete ignition system
• Coil packs, sensors, spark plugs, and wires included
• Harmonic balancer included
• Timing cover and valve covers included
• Natural finish front accessory drive:
  • LS3-style water pump
  • 150 amp alternator
  • Compact A/C compressor
  • Power steering pump with reservoir
• 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 Pro-Touring builds
• Chevrolet Nova LS conversions
• GM restomod vehicles
• Street performance vehicles
• Custom LS swap applications
• High-horsepower muscle car builds

Installation Notes:

• Verify hood clearance due to supercharger height requirements.
• Additional components may be required depending on application:
  • Engine mounts
  • Transmission and clutch/drivetrain upgrades
  • Transmission crossmember
  • Driveshaft modification
  • Cooling system upgrades
  • High-flow fuel system
  • Exhaust modifications
  • Wiring integration
• Holley Terminator X EFI system includes a BluePrint calibration. Do not use standard Holley EFI calibration procedures for this engine package.
• BluePrint recommends air intake kit BPPLS01013 to maintain proper MAF calculations and dyno calibration.
• Not intended for pollution-controlled vehicles.