GM LS Compatible 376 c.i. ProSeries Engine - 549 Horsepower - Base Dressed - Fuel Injected

Description: Horsepower & Torque: 549 Horsepower / 469 FT LBS Compression Ratio: 10.7:1 BluePrint LS3 Aluminum Heads Hydraulic Roller Cam Block: New 6.2L LS Aluminum Block 4.0662" Bore OEM Block Machined in the USA! 6-Bolt Main 1-Piece Rear Main Seal Rotating Assembly: Nodular Iron crankshaft 3.622" Stroke 6.098" Connecting Rods w/ 150,000 PSI Bolts Hypereutectic Pistons Internally Balanced Cylinder Heads: BluePrint LS3 Aluminum Cylinder Heads - PS8015 72cc Chamber 2.165" Intake / 1.600" Exhaust Valves 259cc Intake / 102cc Exhaust Runners Cam Specs: Cam Type: Roller Cam .612 Intake / .585 Exhaust Lift 225 Intake / 238 Exhaust Duration @.050-113 Degree Lobe Separation Ignition Timing: Ignition Timing and Spark Advance are Controlled by BluePrint Engine Calibrated ECU Transmission Controller Required (ECU Does Not Offer Transmission Control) Also Includes: Valve Covers, Retro Fit  Oil Pan Timing Cover Drive by Wire Throttle Body Complete Engine Harness and ECU kit LS