Now $70, $30 off its usual $100 sticker price, this Dr. Stem Playz V8 Combustion Engine Kit from Walmart, seems to suggest otherwise. Get It! Made specifically for educational purposes, this Dr. Stem ...

If you're like the average petrolhead, the notion of a V8 engine likely first brings to mind large-displacement and big-power made famous by many of the iconic big block engines from the likes of GM, ...