Small gas engines built before the 1990s used cast-iron cylinder sleeves and thicker piston rings that resist wear far longer than modern aluminum-bore designs. Brands like Briggs & Stratton, Kohler K ...

Small internal combustion engines usually keep things simple, relying on carburetors to handle metering the correct amount of fuel and air. Recently, [Carlos Takeshita] decided his small engine could ...

America's automotive identity was forged in cubic inches. The greatest American engines ever built did more than make power; they defined entire eras, powered legends, and earned cult followings that ...