The $29.99 all-metal desktop Stirling engine kit is one of the simplest. It can be assembled in 15 minutes and is recommended for ages 14 and up. Also for $29.99 is the Exploring Kid Steam Engine Kit.

Now $60, down $40 off its usual $100 sticker price, this miniature engine kit seems to suggest otherwise. Get It! Made specifically for educational purposes, this Playz kit is divided into over ...

Keeping up with changes in automotive technology, in 1973, Renwal introduced the Visible Wankel kit, a working, motorized 1:3 scale model of a two-rotor rotary engine. As it is much rarer ...

power the redesigned 2008 MINI as well as future Peugeot and Citroen vehicles. Engine parts will be made at Peugeot's Douvrin plant in France while the powerplants will be assembled at separate ...