The BluePrint Engines GM LS Compatible 427 c.i. Pro Series Engine delivers extreme LS performance with a complete, professionally assembled package designed for high-performance street cars, Pro-Touring builds, restomods, and custom LS swaps. Featuring a Deluxe Dressed configuration, Black Pulley Kit, and Holley Terminator X EFI System, this supercharged 427 c.i. engine produces approximately 830 horsepower and 800 lb-ft of torque while maintaining the durability expected from BluePrint’s Pro Series lineup.

Built around a high-strength LSX-style cast iron block, this 427 cubic inch engine combines a forged rotating assembly, LS3-style aluminum cylinder heads, hydraulic roller camshaft, and forced induction technology to deliver massive torque and dependable performance. The included Holley Terminator X Max Gen IV EFI System provides complete ECU control, wiring harness integration, touchscreen tuning capability, and a BluePrint-calibrated base tune for simplified installation.

The Deluxe Dressed Black Pulley Kit provides a premium, aggressive 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 custom performance applications where high horsepower and reliability are required.

Key Features:

• GM LS Compatible 427 cubic inch Pro Series Engine
• 830 horsepower
• 800 lb-ft torque
• Deluxe Dressed configuration
• 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 reinforced cylinder structure
• 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-style aluminum cylinder heads
• 9.5:1 compression ratio
• Forged rotating assembly:
  • Forged crankshaft
  • Forged pistons
  • Forged connecting rods
• 4.125" stroke crankshaft
• 6.125" connecting rods
• Hydraulic roller camshaft:
  • .624" intake lift
  • .624" exhaust lift
  • 239° intake duration @ .050"
  • 255° exhaust duration @ .050"
  • 114° LSA
• Forced induction system:
  • Gen 6 / 3.0L Whipple-style supercharger
• 90 lb/hr fuel injectors
• Drive-by-wire throttle body
• Complete ignition system
• Coil packs, sensors, spark plugs, and wires included
• Harmonic balancer included
• Black front accessory drive:
  • Alternator
  • Water pump
  • 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 vehicle application:
  • Engine mounts
  • Transmission upgrade
  • Transmission crossmember
  • Driveshaft modification
  • Cooling system upgrades
  • High-flow fuel system
  • Exhaust modifications
  • Wiring integration
• Holley Terminator X EFI system includes a BluePrint calibration. Follow BluePrint setup recommendations for best performance.
• BluePrint recommends air intake kit BPPLS01013 to maintain correct MAF calculations and dyno calibration.
• High-horsepower applications should use drivetrain components rated for 800+ lb-ft torque.
• Not intended for pollution-controlled vehicles.