Cast aluminium Rover 'K' series engine block to specification LM25TF, made by Rover, 1996.

When a given object is to be made in large numbers by casting, a permanent metal mould is used.The rapid cooling obtained in such a mould gives a fine-grained structure and a mechanically strong casting with a good surface finish. Pressure die casting, where molten metal is forced under pressure into a permanent die, enables castings to be made rapidly by automatic methods.This is applied particularly to aluminium alloys.