Edelbrock part #46125 Gen III HEMI 426 Long-Block is the base for our E-Force Supercharged crate engine, but is also a great starting point for any high horsepower forced induction Mopar build. Its compact design allows for a seamless swap into most platforms; eliminating the need for modifications to your engine bay or hood. The foundation of this engine is a brand new iron Mopar 392 block with a forged and balanced Manley crankshaft, forged Manley H-Beam connecting rods and Manley forged aluminum pistons. The 4.090" bore and 4.050" stroke help this HEMI produce incredible low end torque. The 9.9:1 compression ratio allows for safe and reliable supercharged performance on 91 octane pump gas.Engine Specifications:- Displacement: 426 c.i.d.- Horsepower: Upwards of 808 HP when used with Edelbrock E-force Supercharger - Torque: Upwards of 762 ft/lbs. when used with Edelbrock E-force Supercharger- Compression: 9.9:1 - Block: New Mopar Iron - Crankshaft: Forged 4340 - Pistons: Forged Aluminum -5cc - Camshaft: 226 Deg /234 Deg , .619/.612, 114 cl - Rocker Arms: Stock Gen III Hemi - Cylinder Heads: Edelbrock Performer RPM #61099 - Fuel Injectors: Not included- Supercharger: Not included