GM Small Block Compatible 396 c.i. Engine - 491 Horsepower - Base Dressed - Fuel Injected

Description: Horsepower & Torque: 491 Horsepower / 509 ft. lbs. Torque Compression Ratio: 10.4:1 BluePrint Engines Aluminum Heads BluePrint Engines Hydraulic Roller Cam BluePrint Engines Forged Crank BluePrint Engines Forged Pistons Block: BluePrint Engines High Strength Cast Iron Block Manufactured and Machined in the USA! Cylinders are Sonic Tested for Thickness Drilled and Tapped for Clutch Linkage Align Honed Main Bearing Bore Mech Fuel Pump Provision: Yes Passenger Side Dipstick 1-Piece Rear Main Seal 4-Bolt Main 4.000" Bore Cylinders Honed on Computer-Controlled Machine to Within .0002 Straightness and Roundness Rotating Assembly: BluePrint Forged Crankshaft 3.875 " Stroke Forged I-beam 6.000" Connecting Rods Forged Pistons Internally Balanced Front - Externally Balanced Rear Cylinder Heads: BluePrint Aluminum Cylinder Heads - HP8103 64cc Chamber 2.08" Intake/1.60" Exhaust Valves 220cc Intake / 67cc Exhaust Runners Cam Specs: Hydraulic Roller .544 Intake / .5