As I've mentioned in other threads, I've used the services of Stanwood Engineering a fair bit in the last couple of years and they have always been first class. They have the Guy Croft seal of approval (something not lightly awarded) and he subcontracts a fair amount of work out to them. They have deep cleaned my engine block and put it through the ultrasonic tank, rebored it to suit my supplied pistons and rebuilt the short engine (Guy did the crankshaft and flywheel). When everything is ready, they will be rebuilding the top end of my engine. I can unhesitatingly recommend their work.
They are in Bawtry, South Yorkshire - not far from the A1/M18. Here is their website and address:
https://www.stanwoodengineering.co.uk/ Stanwood Engineering Limited
21 Church Street
Bawtry
Doncaster
South Yorkshire
DN10 6HR
Tel: 01302 710661
Fax: 01302 711663