Premier Deep Hole Drilling has
drilled an engine block for one of the
rarest Aston Martin race cars, a
DBR2. The car, which is being funded
by classic car enthusiast Jonathan
Dormer, required a new engine block
to be sand cast to the original design.

Premier’s MD Stuart Grant said:
“A 19mm diameter hole was drilled
through the 747mm block to form
the main oil feed galley. Because the
oil galley is close to the surface across
the aluminium block there is no
allowance for the drill to vary from the
intended trajectory, so we drilled it
from both ends to meet in the middle.

“One end was drilled and then the
block was set-up on the machine by
referencing the initial entry point and
feeding in directly opposite. The
positional control on the machine was
used to ascertain the position
accurately as the faces on the cast
block weren’t accurate enough to use.”