405HP ZZ383EFI High Performance Series Street and Strip Engine 405 fuel injected horsepower for your street machine. Accel Super Ram fuel injection and Accel Gen VII controller with wide band o2 sensor prodvide modern technology for your classic muscle.

The excellent air handling and combustion characteristics of the Fast Burn cylinder heads combined with the ZZ383EFI’s 3.800" stroke, make this engine the benchmark against which all other 383 inch small-blocks should be measured. And it’s tough, too. The 4340 nitrided and induction hardened crank and unique forged PM rods see to that.

The 9.7 to 1 compression ratio ensures that the ZZ383EFI is 92 octane pump gas friendly. The ZZ383EFI gets a stout .509/.528 lift steel camshaft with 222/230 duration at .050 lift. Hydraulic roller lifters and GM’s time tested 1.5 to 1 roller rocker arms round out the valve train. And, of course, it has the Fast Burn head’s lightweight stainless steel valves and retainers for reliable performance at extended RPM. The ZZ383EFI engine is based on GM’s popular ZZ383 crate engine, then topped with a high tech Accel Super Ram fuel injection system. The fuel injection is controlled by Accel’s Gen VII controller with wide band o2 sensor technology.

Each Fuel Injected 383 engine is shipped as a turn key engine with water pump, harmonic balancer, flexplate, Accel Dual Sync distributor, MSD plug wires, AC Delco spark Plugs, MSD ignition box, MSD Blaster 2 coil, Accel fuel pump and filter.