PSLS42730CTF
GM LS COMPATIBLE 427 C.I. PRO SERIES ENGINE - 605 HORSEPOWER - BASE DRESSED - NO ECU / HARNESS
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Horsepower & Torque: 605 Horsepower / 565 FT. LBS. Torque
Cylinder Heads: BluePrint Engines LS3 Aluminum Cylinder Heads
Compression Ratio: 11:1
Camshaft: Hydraulic Roller Cam - .624 Intake / .624 Exhaust Lift and 239 Intake / 255 Exhaust Duration @ .050 - 114° LSA - Three Bolt Cam
Pistons: Forged
Crankshaft: Steel Crank - 4.125" Stroke and 6.125" Rods
This engine Does NOT come with a Fuel Injection ECU and Wiring Harness.
Fuel Recommendation: 91+ Octane
OVERVIEW:
The LS-compatible platform is the king of street machines—and this BluePrint Engines 427 C.I. Pro Series monster proves why. Unleash raw, LS-powered fury with a street-scorching 605 horsepower and 565 ft-lbs of torque. This base dressed beast packs a 11:1 compression ratio, BluePrint aluminum heads, a hydraulic roller cam, and hypereutectic pistons, and nodular iron crankshaft, all locked into a high-strength LSX-style cast iron block. With the drive-by-wire throttle pedal, sensors, and throttle body included, it’s ready to rip—just plug in, fire it up, and hang on.
DESCRIPTION:
- Horsepower & Torque: 605 Horsepower / 565 ft. lbs. Torque
- Compression Ratio: 11:1
- BluePrint Engines LS3 Aluminum Heads
- BluePrint Engines Hydraulic Roller Cam
- BluePrint Engines Forged Pistons
- BluePrint Engines Forged Crankshaft
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
- 4.0685" 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 Separation
ALSO INCLUDES:
- This engine Does NOT come with a Fuel Injection ECU and Wiring Harness
- LS Swap Oil Pan - Windage Tray - Pick Up Screen
- BluePrint Engines Fuel Injectors and Rail
- DBW Throttle Body - BPP12191019
- Water Pump - BPPLS126WP
- GM Plastic Intake Manifold
- Spark Plugs & Wires
- Harmonic Balancer
- Coil Packs
- Sensors
NOTES:
- Does NOT include any engine management/controller.
- 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.
- BluePrint Engines Recommends Air Intake Kit BPPLS01013 to ensure correct MAF calculations and Dyno calibration are maintained.

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$13,299.00