This review has been updated 16 times since it was first published in December of 2016. Building a realistic scale model of an engine is both challenging and rewarding, and it’s one of those few activities that can truly be called “fun for all ages.” Get started with one of these kits, which offer step-by-step instructions for constructing a miniature motor. They’ll work well as a conversation piece on your desk or serve as a valuable teaching tool for a budding mechanic or engineer. When users buy our independently chosen editorial choices, we may earn commissions to help fund the Review.

10. Wooden City V8
The Wooden City V8 is different from most, in that it boasts a wood construction rather than the usual metal or plastic. It comes packaged attractively in a box made from the same material, giving the whole kit a solid, high-quality feel.
- No glue required
- Can be finished in about 2 hours
- More puzzle than model

9. Airfix 1876 Four-Stroke
Be sure to block out a solid chunk of time before starting the Airfix 1876 Four-Stroke, because this realistic version has plenty of pieces to keep you busy. It doesn’t come with any paint or painted parts, which will add to the investment of effort and cash.
- Cutouts for visibility
- Skill level required is 2 out of 4
- Does not actually run

8. King of Toys Overhaul Set
For younger children with limited patience and hand-eye coordination, the King of Toys Overhaul Set may be the way to go. It is a toy, but it arrives with plastic tools and hardware for removing and replacing some of the pieces, which makes pretend play more realistic.
- Budget-friendly price
- Handy storage bag
- Seems small at just 10 inches tall

7. Haynes Build Your Own
The Haynes Build Your Own is a diminutive four-cylinder internal combustion model. Its see-through plastic housing allows the observer to watch all the inner workings of a motor, offering an understanding of the type of engine that powers so much of our world.
- Makes realistic ignition sounds
- Easy for most kids to build alone
- Feels flimsier than many

6. Wilesco D5
Steam engines may not be that common today, but they were a revolutionary technology when first invented. The Wilesco D5 takes you back to their glory days and illustrates the principles by which these mechanical marvels worked.
- Doesn't require any soldering
- Starts running in just a few minutes
- On the more expensive side

5. Porsche 911 Flat Six
With the Porsche 911 Flat Six you can create your very own 1/4-scale model of the motor that powers one of the world’s most recognizable high-performance automobiles. This comprehensive set includes more than 280 components.
- Runs on aa batteries
- Text and diagrammatic directions
- Too complicated for most youngsters


4. Revell Visible V-8
This Revell Visible V-8 helps you create and simulate a working eight-valve engine, much like one you might find under the hood of a powerful truck or sports car. The set features a sturdy rubber fan belt and vinyl ignition wires.
- Parts move via hand crank
- See-through housing
- A lot of flash to remove

3. Hawk Dodge SRT-8
The Hawk Dodge SRT-8 puts a 1/6-scale replica of a powerhouse in your hands. It is crafted to demanding specifications, so every component matches its real-life counterpart, which makes it a thoughtful gift for any automotive enthusiasts.
- All components are prepainted
- Durable die-cast parts
- Comes with a display stand

2. Trends UK Haynes V8
You will know you have built the Trends UK Haynes V8 correctly the moment its throaty ignition sound reaches your ears. Then just sit back and watch the illuminated spark plugs flash as this plucky little built-to-scale motor fires away.
- Multiple chrome-plated pieces
- Automatic shutoff
- Clear step-by-step instructions

1. Elenker Mini Hot Air Stirling
This handsome Elenker Mini Hot Air Stirling is not only amusing and relatively easy to build and operate, but it looks great as a decoration for your desk or shelf once completed. Its basic design makes it a good introduction to mechanical engineering.
- Works as a cool paperweight
- Powered by heat
- Nonskid foot pads on base

This website is not affiliated, associated, authorized by, endorsed by, or in any way connected to the brands and companies mentioned on this website. All trademarks, copyrights, and other rights are the property of their respective owners. See Terms of Service for DMCA notices.
As an Amazon Associate we earn from qualifying purchases. We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
CERTAIN CONTENT THAT APPEARS ON THIS SITE COMES FROM AMAZON SERVICES LLC. THIS CONTENT IS PROVIDED ‘AS IS’ AND IS SUBJECT TO CHANGE OR REMOVAL AT ANY TIME. Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product. All prices on this site may change and those considered valid are displayed on Amazon.com