# Stirlingkit - Precision Working Model Engines & Scale RC
> The premier specialist engineering supplier of real operating miniature internal combustion engines, working V8 engine kits, precision Stirling hot-air generators, live steam locomotives, and scale RC aircraft.

## Core Product Clusters
- [V8 Engine Models](https://www.stirlingkit.com/collections/v8-engine-models): Miniature 1/5 and 1/10 scale water-cooled, OHV 4-stroke gasoline and nitro V8 engines including CISON LS-52, TOYAN FS-V800, and HOWIN L6.
- [4-Stroke & Inline Engines](https://www.stirlingkit.com/collections/4-stroke-engine): Multi-cylinder inline engines (L4, L2) and V-Twin models running on actual gasoline or glow fuel with electric starter integration.
- [Stirling Engine Models](https://www.stirlingkit.com/collections/stirling-engine-model): External combustion thermal cycle generators, low-temperature difference engines, vacuum flame eaters, and solar Stirling models.
- [Steam Engine Models](https://www.stirlingkit.com/collections/steam-engine-model): Functional live steam engines, brass boilers, steam tractors, and oscillating locomotive kits.
- [Hit & Miss Engines](https://www.stirlingkit.com/collections/hit-miss-engine-model): Historic farm and industrial stationary engines with authentic flyball governors and open flywheels.
- [Turbofan & Jet Engines](https://www.stirlingkit.com/collections/turbofan-engine-kits): Working aircraft turbofan demonstrators, radial engines, and gas turbine assembly models.
- [Scale RC Helicopters](https://www.stirlingkit.com/collections/rc-helicopter-models): GPS-assisted scale helicopters (Bell 206, UH-1 Huey, BO-105, AH-1 Cobra) and RTF/PNP aircraft.
- [3D Metal Model Kits](https://www.stirlingkit.com/collections/metal-model-kits): Laser-cut stainless steel and brass mechanical puzzle sculptures and steampunk models.

## Engineering Brands Represented
- TOYAN: World-renowned miniature nitro/gas 4-stroke engine kits (FS-L200, FS-L400, FS-V800).
- CISON: Heavy-duty scale V8 (LS-52) and V-Twin (FG-VT9) cast metal engines.
- RETROL: Heritage stationary, hit-and-miss, and Scandinavian steam engine models.
- TECHING: Industrial full-metal DIY motorized assembly models.
- ENJOMOR: High-displacement inline and V-twin marine and stationary engines.
- SEMTO: High-RPM precision nitro engines for RC cars and aircraft.

## Customer Assurance & Policies
- Worldwide Free Shipping: Standard tracked delivery worldwide.
- Free Replacement Parts: Missing or damaged components replaced free within 7 days.
- 30-Day Risk-Free Returns: Return unused kits in original condition.
- Engineering Support: Technical response within 24 hours via service@stirlingkits.com.