BluePrint Engines PSLS4275CTFK - 427 CID GM LS Compatible Dressed Longblock w/ EFI - 605HP

Horsepower 605HP Torque 565FT/LBS Compression Ratio 11 to 1 Block New BluePrint 6.2L LS Cast Iron Block Pistons Forged Rotating Assembly Forged Steel Crank - 4.125 in. Stroke and Forged 6.125 in. Rods Heads BluePrint Engines LS3 Aluminum Cylinder Heads Camshaft Specs Hyd Roller, .624 Int / .624 Exh and 239 Int / 255 Exh dur @ .050 - 114 LSA , three bolt cam Experience raw power with this dyno-proven BluePrint Engines 6.2L LS crate engine, delivering 600 HP and 530 lb-ft of torque. This near drop-in package features forged internals, a calibrated ECU, and a complete front accessory drive. Key Features: Dyno-Proven 600 HP / 530 lb-ft Torque 11:1 Compression BluePrint High-Strength 6.2L Block (6-Bolt Main) Forged Internals: Crankshaft, Rods, Pistons BluePrint Aluminum Heads (PS8015) Hydraulic Roller Cam Complete Package with Calibrated ECU & Front Accessory Drive: Calibrated ECU, Harness, Throttle Pedal, Sensors Front Accessory Drive (Water Pump, A/C, Alternator, Power Steering) LS Swap Oil Pan, Timing Cover, Valve Covers LS3 Intake, Injectors, Fuel Rail, Coil Packs, Plugs & Wires Harmonic Balancer Ready to Run (Almost): This high-performance LS engine is designed for straightforward installation with its included calibrated ECU and complete front accessory drive. Extensive testing ensures performance, reliability, and safety. Important Considerations: Transmission Control: The calibrated ECU does not control the transmission. A separate transmission controller is required for automatics. Accessory Drive Fitment: Customer is responsible for verifying fitment. Modifications may be required. Requires non-weighted flexplate/flywheel. 91 Octane fuel recommended. 2200+ RPM stall converter recommended. Retrofit oil pan fits most 1955-1995 GM RWD V8 cars. Not for pollution-controlled or dry sump applications.