The Lightning was a Willys straight-6 engine produced in the 1940s and 1950s. It was used in the Willys Jeep Station Wagon and other Jeep-based vehicles at the time. It was replaced with the Willys Super Hurricane engine. L148 The L148 version displaced 148 in³ (2.4 L). Applications: 1948-1950 Willys Jeep Station Wagon 1949-1950 Willys-Overland Jeepster L161 The L161 version displaced 161 in³ (2.6 L). Applications: 1950-51 Willys Jeep Station Wagon 1950 Willys-Overland Jeepster 1952-55 Willys Aero-Lark 1953-55 Willys Aero-Falcon Lightning Straight-six engines