Custom Core Plug Sets has grown from a small shop into the UK`s leading Core Plug supplier. We supply various companies throughout the UK and worldwide. Working on various engines and cylinder heads daily in our machine shop, we have put together a vast core plug catalogue consisting of hundreds of different core plug / freeze / welch plug engine block and cylinder head sets.

We are always willing to go the extra mile and help our customer source the correct size of core plugs for their engine. Should you require a core / freeze /frost / welch / expansion plug set not listed on our online store please do not hesitate to contact us via the form below. We will be happy to research and put together the correct kit for your engine.