Adding power brakes an older muscle car is a common improvement, but not all swaps may go smoothly. A friend bought a used 1966 Chevelle that had been upgraded to power front disc brakes. He soon ...

Let’s say that you’re assembling your next street engine only to discover that the piston-to-valve clearance on the intake side is a little too close for your liking. You could add a thicker head ...

Catey Hill is the managing editor for MarketWatch Picks. Catey is the author of two personal finance books, “Shoo, Jimmy Choo!” and “The 30-Minute Money Plan for Moms.” She previously held positions ...