Description
Overview:
The LS-compatible layout has become a favorite for its rock-solid reliability and proven track record, this BluePrint 427 c.i. Pro Series is a street-ready powerhouse built for performance. Delivering a power packed 600 horsepower and 530 ft-lbs of torque, this popular LS-compatible engine is perfect for restomods, street machines, and pro-touring builds. At its core is a high-strength BluePrint cast iron block with LSX-style features—thicker decks, reinforced webbing, and extended cylinder skirts for added durability. It’s topped with LS3-style aluminum heads, a 11:1 compression ratio, hydraulic roller cam, forged pistons, and a forged crankshaft. BluePrint Engines Fabbed Aluminum Intake Manifold, BluePrint Engines Calibrated ECU and harness, drive-by-wire throttle pedal, sensors, and throttle body—delivering plug-and-play performance right out of the box.
Description:
- Horsepower & Torque: 600 Horsepower / 530 ft. lbs. Torque
- Compression Ratio: 11:1
- BluePrint Engines LS3 Aluminum Heads
- BluePrint Engines Hydraulic Roller Cam
- BluePrint Engines Forged Crank
- BluePrint Engines Forged Pistons
Block:
- BluePrint Engines High Strength Cast Iron (LSX Style) Block
- Increased Deck Thickness and Strength Webbing
- Utilizes OEM LS3 Front and Rear Covers
- Improved Water Jacket Design
- Extended Cylinder Skirt
- 1-Piece Rear Main Seal
- Priority Main Oiling
- 4.0695″ Bore
- 6-Bolt Main
Rotating Assembly:
- Forged Crankshaft
- 4.125″ Stroke
- Forged 6.125″ Connecting Rods
- Forged Pistons
- Internally Balanced Front and Rear
Cylinder Heads:
- BluePrint Aluminum Cylinder Heads – PS8015
- 69cc Chamber
- 2.165″ Intake / 1.590″ Exhaust Valves
- 259cc Intake / 102cc Exhaust Runners
Cam Specs:
- Hydraulic Roller
- .624 Intake / .624 Exhaust Lift
- 239 Intake / 255 Exhaust Duration
- @.050-114 Degree Lobe Separate
Ignition Timing:
- ECM Supplied with Calibration
- Not Capable of Transmission Control
- Transmission Controller Required
Also Includes:
- LS3 Fabricated Intake Manifold & Fuel Rail – BPP822112
- BluePrint Engines Complete Harness and ECU Kit
- Drive by Wire Throttle Body – BPP12191019
- Retro Fit Oil Pan – BPP81074
- Water Pump – BPPLS126WP
- Spark Plugs and Wires
- Harmonic Balancer
- Timing Cover
- Valve Covers
- Coil Packs
- Injectors
Notes:
- This engine requires a non-weighted flex plate/flywheel.
- Recommended fuel: 91 Octane.
- BluePrint Engines recommends a 2200+ RPM stall converter.
- Retro fit oil pan will fit most 1955-1995 GM front engine, RWD, V8 cars.
- Not for use in pollution-controlled vehicles or in dry sump applications.
- The Included BluePrint Engines LS controller package contains a fully tested, calibrated, locked ECU, optimized for this specific engine. This package has undergone extensive testing for performance, reliability and the safety of you and your engine.
