The
HKS
2.8L
High
Capacity
STEP
3
Piston
Upgrade
Kit
(21004-AN021)
is
the
most
aggressive
and
performance-focused
stroker
kit
offered
by
HKS
for
the
legendary
RB26DETT
engine
found
in
the
Nissan
Skyline
GT-R
R32,
R33,
and
R34.
Designed
for
full-race
and
ultra-high
output
applications,
this
kit
is
built
to
handle
extreme
stress,
sustained
high
RPMs,
and
massive
power
levels
beyond
800+
horsepower.
STEP
3
features
a
fully
counterweighted
forged
86.0mm
stroke
crankshaft,
lightweight
forged
pistons,
and
upgraded
forged
connecting
rods
engineered
to
withstand
high
cylinder
pressures
and
prolonged
racing
conditions.
Compared
to
STEP
1
and
STEP
2,
the
STEP
3
kit
prioritizes
high-RPM
response
and
durability
in
the
most
demanding
motorsport
environments.
Ideal
for
professional-grade
time
attack,
drag,
and
circuit
builds,
this
kit
transforms
the
RB26
into
a
high-revving
2.8L
powerhouse
with
brutal
acceleration
and
response
across
the
powerband.
-
Engine
Compatibility:
Nissan
RB26DETT
(Skyline
GT-R
R32/R33/R34)
-
Displacement:
2.8L
(86.0mm
stroke)
-
Includes:
High-strength
forged
pistons,
forged
H-beam
connecting
rods,
forged
full-counter
crankshaft
-
STEP
3
Design:
For
maximum
high-RPM
durability
and
racing
performance
-
Supports:
800+
HP
with
proper
supporting
mods
and
tuning
Note:
Professional
engine
machining,
balancing,
and
tuning
are
required.
Not
recommended
for
street
use.
Intended
for
full-race
and
high-load
competition
engines.
