FYI: The code "467" is a Boeing designation for -400 aircraft built for Cathay Pacific to the company required specifications.
All "original" CX aircraft had RB211's as standard - that was a company choice.
The SQ 412 aircraft are exactly that - aircraft built for SQ by Boeing (These were ordered with the PW engines)
The new CX -8 aircraft will have the company designation "867F" with the "F" being the freighter variant.