1958: Briggs & Stratton improved upon the Aluminum engine and introduced the full aluminum engine called the Kool-Bore and another version called Sleeve-Bore which was also full aluminum but with its cylinder lined with Cast Iron.

1961: Briggs & Stratton introduced another engine which reduced the efforts of manually starting the engine to half and called it Easy-Spin Starting engine. This feature of easy start was simultaneously in all their engines except the electric self starter engines. However, in 1982 due to safety regulations the engine was modified and later on withdrawn in 1987 due to emission regulations.

1966: Briggs & Stratton introduced the Sno/Gard engine for use during winter in extreme climatic conditions. This engine was fitted with modified air intake, starter, clutch and protective housing covering the carburetor and the spark plug for conserving heat.

1966: Briggs & Stratton also introduced the Synchro-Balanced engine this year. The engine aimed at reduction in the vibrations due to high RPM and the torque of the engines. It had a series of weight placed along the crankshaft to act like counter weight to reduce the vibrations.

1977: Briggs & Stratton introduced the twin cylinder engines to compete with its Japanese rivals like Honda.

1980: Briggs & Stratton introduced the hybrid engine as its answer to the energy crisis. It was their first electrical-cum-gasoline engine.

1981: the Magnetron Electronic ignition system was introduced in all the engines produce by Briggs & Stratton.

Briggs & Stratton had its lawn mowers fitted with and emergency switch called the dead man’s switch for emergency stoppage of the lawn mover should the user is injured during the operations.

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