One way to learn how to rebuild a car engine is with an engine kit like this functional Teching V8 engine kit.

Right now, the Playz V8 Combustion Engine Model Kit is on sale at Amazon for just $70. You can save 30% on this highly-rated kit that is targeted towards those 12 years and older.

If you're looking for a fun STEM project to do with your kids or something to put in your aviation collection, consider this radial engine model kit.

Amazon is selling a ‘quality’ mini V8 engine kit for 30% off, and shoppers say it’s ‘educational and fun’ “Outstanding model for young and old.” ...