Turbo V8 Engine Design for Sand Casting

I’m looking for a mechanical or automotive design engineer to design a fully functional 0.6L V8 turbo engine with two SOHC cylinder heads, ready for sand casting and machining in aluminum.

This is a small, high-RPM V8 designed for real operation — not a display model. The final design will include proper oil and water jackets, sand casting draft angles, and machining tolerances.

I’ll provide hand-drawn sketches and a detailed spec sheet with all key measurements.

Engine Specifications:
- Configuration: 60° V8
- Displacement: ~0.6L
- Bore: 44 mm
- Stroke: 41 mm
- Conrod length: 70 mm
- Compression ratio: 8.5 : 1 (Turbo setup)
- Material: Aluminum alloy (sand-cast, then machined)
- Cooling: Water-cooled (internal jackets)
- Lubrication: Wet sump with full oil galleries
- Heads: 2 × SOHC heads (one per bank)
- Camshaft: One per head, chain or belt driven
- Crankshaft: Flat-plane preferred
- Induction: Turbocharged (small turbo, 5–12 psi boost)
- Fuel: 95–98 RON petrol
- Exhaust: 4-into-1 per bank
- Target RPM: 9,000 – 10,000 rpm
- Transmission: Mini Willys 3-speed gearbox with reverse
- Manufacturing: Sand casting followed by manual machining

Block & Component Dimensions:
- Total block length: ~300 mm
- Block width (bank to bank): ~220 mm
- Block height (crankcase to top of head): ~230 mm
- Crank main journal dia: 32 mm
- Rod journal dia: 28 mm
- Piston pin dia: 14 mm
- Crankshaft stroke center spacing: 50 mm
- Bank offset: ~20 mm (for even firing spacing)
- Cylinder wall thickness: 4–5 mm
- Coolant jacket clearance: 3 mm min.
- Oil gallery bore: 6–8 mm
- Head bolt diameter: 8 mm
- Flywheel interface diameter: 100 mm
- Mount face thickness: 10 mm
- Recommended aluminum alloy: A356-T6 (cast then heat treated)
- Draft angle for sand casting: 2–3°

Deliverables:
1. 3D CAD models (Fusion 360 / SolidWorks)
- Engine block with full oil & water jackets
- Two complete cylinder heads with ports, chambers, and cam layout
- Crankshaft, camshafts, pistons, rods, valves, oil and coolant galleries
- Water and oil pump placement
- Gearbox mounting face
2. 2D Technical Drawings (DWG/DXF) for machining and casting
3. Exploded and sectional assembly drawings
4. STEP / STL files for sand-casting molds and machining

Notes:
- Design for use with a Speeduino ECU (leave injector and sensor port placeholders)
- Must include realistic cooling and oil circulation paths
- Include draft angles and wall thickness suitable for sand casting
- Prior experience with engine design or foundry-ready models preferred

Budget:
Negotiable — fair offers welcome

Reference style:
Compact, high-revving engines like Yamaha V8 or Honda V4.