The all-new SP383 EFI engine packs modern tech into a package that can be installed in applications where 265-400ci small block Chevy engines were originally used. This complete engine is assembled with premium quality parts including the Fast Burn CNC-machined aluminum cylinder heads and MPFI system. It also packs a single plane intake manifold designed for use with raised intake ports and Vortec style intake bolt pattern. You can blend big torque of the long-stroke 383 with the ease of electronic fuel injection