MG MGB (1800cc). It's very easy to change these, to remove the old ones you knock a sharp screwdriver through the old core plug and lever it out. Here's a newCore Plug Set for the following 4 cylinder models models fromMG -.
MG MGB MGB GT Mini Midget 1500 Contact Points Set LUCAS 45D GCS118 CS8 1974-80
MG MGB/ MGB GT 25D Rotor Arm GRA101
MG MGB, MGB GT Oil Sump Drain Plug and Washer 88G257 and 6K638
MG MGB/ MGB GT Temperature Sensor/ Sender (GTR101)
MG MGB MGB GT Uprated Valve Stem Oil Seals Set of 8 seals 12B2104
MG MGB, MGB GT Outer Weatherstrip/ Window Seal Set (Both Sides) - AHH6348-9
