From Cosworth web site:

"Cosworth start with all the individual brand new, Geniune Ford components. The lightweight aluminium cylinder block and cylinder head are expertly modified and then assembled with Cosworth camshafts, Cosworth forged pistons and rods (on applications), Cosworth barrel throttle, Cosworth dry sump, Hi flow injectors, race alternator, starter, coils, spark plugs.

Cosworth Duratec engines are hand built assembled in the same build-shop as Cosworth's Formula One engines along other Cosworth race engines."

am impressed with dry sump which should make an appreciable difference to center of gravity?