Thin wall spark plug sockets for MGV8s See our note on two sources of thin wall spark plug sockets for Rover V8 engines in an MGV8. Posted: 230703 Thin wall spark plug sockets for MGV8s With the tight recess alongside a spark plug in a Rover V8 engine, owners of MGBGTV8s, V8 Roadster conversions and RV8s will find a thin walled spark plug socket that features a very thin wall to fit the narrow spark plug recesses on a Rover V8 engine. Over the years many fellow V8 enthusiasts have resorted to simply grinding down a standard plug socket to get a "thin wall" socket but they are available from two suppliers in the UK and also available in the USA. More