Originally Posted by
focusv8
From DVLA:
Change to engine and cylinder capacity (engine size)
DVLA will need written evidence of any changes to engine number and cylinder capacity (cc). Written evidence can be:
- a receipt for the replacement engine
- written evidence from the manufacturer
- an inspection report provided for insurance purposes
- written confirmation on headed paper from a garage if the change in engine size took place before you bought the vehicle
that is regarding a change of engine size
swapping an engine for another the same size and type only needs the doc filled in with the new number and sent off to dvla
