HOLDEN RACE HYDRAULIC LIFTER

Description

Speed-Pro Hi-Rev (commonly
called anti-pump-up)
hydraulic lifters feature the
same quality material and
construction as the
conventional hydraulic
lifter. A special high
strength steel retainer is
used to precisely limit the
travel of the plunger during
operation. With plunger
travel limited, adjustable
rocker arms must be used to
effect a lash adjustment of
.000/.002″. This then allows
the valve train to perform
more like a mechanical
system, thus allowing high
RPM operation. Because of the
high RPM capability and the
elimination of frequent lash
adjustments (which are
required for mechanical
lifters), Hi-Rev hydraulic
lifters are the best choice
for all-round engines.