Big Boot cars are different to small boot ones, club spares lists a couple of numbers Lucas L1471 and L549 – the 549 look more ’rounded’ on the corners https://tinyurl.com/vadgwfp than the ones I have seen pics of on cars which tend to be squarer on the corners like the 471 https://tinyurl.com/wfcdfxn
Someone should be able to confirm which are correct for you but from what I have seen the 471 seem to be the ones.
