Many years ago I worked in a radiator manufacturing factory....SUButec, formerly Morris Motors and now Calsonic Kansei.
Made BL rads as well as specialist and aftermarket. There were several local repairers within a 20 mile radius. Not sure if they are still there.
They could replace any part ..mainly core blocks as they were the least robust parts.
We made for older cars...Morris 1000, etc.
We even had a Spitfire core in once for refurb...big core indeed!
We supplied Marston, Halfords etc from a warehouse we had.
I remember my old Maxi workhorse rad core going....used Radweld as a temp until we made new Maxi rads a few weeks later....took mine in as a staff repair and it came out like new
