far as the head, which can cause different expansion and contraction rates between the head and the block. This combined with the early practice of installing the head gasket with plastic locating dowels, which subsequently melted when the engines overheated, allowed the head gaskets to "walk." A redesigned head gasket, which consists of a multiple layer metal gasket or "MLS" used in conjunction with steel locating dowels, is alleged to significantly reduce the chance of a head gasket failure. There is no replacement engine that is a suitable replacement for the motor of K Series. Apart from the head gasket problem, MGF and TF models are said to have few major faults. The engine for the K Series was sourced from the existing Rover line and was mainly intended as a front engined commuter vehicle power source. The design compromise of locating the thermostat on the pump intake rather than the head outlet originates in this original use. A common aftermarket modification by those who intend to drive their MGFs spiritedly is to install an Inline thermostat in the outlet pipe from the head to the radiator. This head gasket problem is also found on K series engined Lotus Elises and is also commonly solved by thermostat relocation. References External links MG Motor UK MG Car Club F TF Rear mid-engine, rear-wheel-drive vehicles Mid-engined cars Roadsters Euro NCAP roadster sports cars 2000s cars 2010s cars Cars introduced in 1995