RETROL A16 SCANDINAVIAN ENGINE
16cc Petrol A-Frame with Flyball Governor & Open Flywheels. Functional heritage stationary engineering in cast iron & brass.
Build a V8 that really runs.
Stirlingkit is the world's premier destination for functional miniature internal combustion engines, working V8 engine kits, precision Stirling hot-air generators, and scale RC aircraft. Assemble precision CNC-machined components by hand, fill the tank, and experience real mechanical combustion on your bench.
Engines you build. Helicopters you fly.
Precision DIY kits and factory-tuned scale aircraft for serious modelers
Engine kits →
Functional 4-stroke V8s, inline 4s, Stirling hot air generators, and live steam locomotives.
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RC helicopters →
GPS-assisted Bell 206, UH-1 Huey, AH-1 Cobra, and RTF scale military aircraft.
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Built by our customers.
From workbench assembly to initial run in the workshop. Real projects from passionate model engineers around the globe.
What builders say.
"Pure mechanical art and it sounds glorious!"
The CNC machining tolerances on this V8 are unbelievable. Took me about 22 hours over two weekends to build. Followed the manual, oiled every bearing, and on the third crank it fired right up. The idle sound gives you goosebumps.
"Top-Qualität und schneller weltweiter Versand"
Arrived in Germany in 8 days with zero customs issues. Packed in fitted foam. Every valve, pushrod, and gasket was accounted for. Stirlingkit customer service replied within 3 hours when I had a question about oil ratio.
"Mesmerizing governor action and flawless cast iron look"
A true conversation piece in my study. The open flywheels and flyball governor spin with hypnotic precision. Stirlingkit is the only place providing real working miniature heritage engineering of this caliber.
Frequently asked questions
Customer service: 8:00–18:00 GMT. We reply to every message within 24 hours via service@stirlingkits.com.
Q1: Do Stirlingkit model engines actually run on real fuel?
Yes. Stirlingkit specializes in functional scale engines that truly operate. Depending on the model architecture, they run on 92# unleaded gasoline mixed with 2-stroke synthetic oil, 20–25% nitro/methanol glow fuel, alcohol burner heat (external combustion Stirling engines), or live pressurized steam.
Q2: Do you offer free worldwide tracked shipping?
Yes. Standard tracked door-to-door shipping is 100% free worldwide with no minimum order threshold. Every shipment is cushioned in high-density foam and declared accurately for smooth delivery across the United States, Canada, UK, European Union, Australia, and Japan.
Q3: What is the assembly difficulty, and are illustrated manuals included?
Every DIY engine kit ships with a printed or digital step-by-step illustrated schematic manual with numbered hardware bags. Assembly ranges from beginner tabletop Stirling engines (1–2 hours, ~40 parts) to advanced overhead-valve V8 combustion kits (15–30 hours, 400+ CNC-machined metal components).
Q4: What if a screw, gasket, or piston ring is missing or damaged?
Every order is backed by the Stirlingkit Free Missing Parts Guarantee. Report any missing or damaged component to service@stirlingkits.com within 7 days of delivery and our engineering warehouse dispatches replacement parts free of charge.
Q5: What accessories are needed to start a miniature gasoline or nitro engine?
Internal combustion kits require an ignition module (CDI high-voltage spark igniter for gasoline or glow plug driver for nitro), a 7.4V–12V LiPo starting battery, fuel tank tubing, and lubrication oil. Ready-to-run starter bundles are available in our Engine Parts & Tools collection.