Answer
Jun 06, 2025 - 12:27 AM
Yes — this manual does cover your 2004 Indmar 5.7L 310 Assault engine.
To clarify: the “310 Assault” is Indmar’s marketing name for a Chevrolet-based 5.7L (350 cubic inch) small-block V8, rated at 310 horsepower. It’s built on the L31 platform, which was widely used in marine and industrial applications around that time.
So when the preview shows “350” — that’s completely correct. It’s referring to the engine’s displacement (350 cubic inches), which is the same as your 5.7L. The 310 Assault is just one of several 5.7L variants based on that 350ci GM block.
This manual includes full mechanical specs and procedures for that engine type, including:
- Complete teardown and reassembly procedures
- Torque specs, firing order, compression ratio (9.4:1 for the L31)
- Cooling, ignition, and fuel system servicing
- Troubleshooting charts and mechanical diagnostics
If you're maintaining or rebuilding a 2004 Indmar 310 Assault, this manual gives you everything you need to do the job right.
