GM Small Block Compatible 400 c.i. Engine - 500 Horsepower - Deluxe Dressed - CarburetedDescription: Horsepower & Torque: 500 Horsepower 510 ft. lbs. Torque Compression Ratio: 10. 3: 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! Drilled and Tapped for Clutch Linkage Mech Fuel Pump Provision: Yes Passenger Side Dipstick 1 Piece Rear Main Seal 4 Bolt Main 4.