BBC 4.500″ PISTONS +37cc DOME 4.250″ ST 6.385″ ROD 1.270″ CH

Description

These big block pistons
are an excellent choice for
drag race applications. These
pistons will not work with
Edelbrock heads ED6045,
ED6040, ED6055, pistons for
these heads are available as
special order. Precision CNC
machined ring grooves accept
1/16, 1/16, 3/16 rings.

Includes
:

• Double pin
  oilers
• Pin
  #990-2930-15-51S(150g)
• Double spiro locks
  #990-042-CS
• Accumulator Grooves

Specifications
:

• Part #:
  J258247
• CID: 541
• Bore: 4.500
• Stroke: 4.250
• Rod
  Length: 6.385
• Block
  Height: 9.780
• Compression Height: 1.270
• Compression Ratio with
  110cc chamber volume: 14.3
• Compression Ratio
  with 118cc chamber volume:
  13.1
• Compression
  Ratio with 124cc chamber
  volume: 12.4
• Dome
  Volume: 37.0cc
• Gram
  Weight: 618
• Footnote:
  Oil Rail Support is Included
• Oversize: .034
• Recommended Ring Set
  (Check Proseal listing to
  determine oil ring tension):
  J10008-4500-5

With over 60 years of
experience, JE Pistons is the
leader in high performance
forged pistons. We’ve built a
reputation that the
competition can only follow.
JE has a history of
manufacturing the highest
quality pistons and
components that professional
engine builders, race teams,
and high performance
enthusiasts trust and rely
on.

The top engine
builders in NASCAR, ALMS,
NHRA, AMA Supercross and
others choose JE Pistons over
any other brand. For over 60
years, JE’s position at the
forefront of performance
piston manufacturing has been
a result of continuous
research and development of
unique materials, piston
designs and technologies.
Utilising State-Of-The-Art
CNC machines for
manufacturing along with
purpose-designed forgings, JE
is able to maintain exacting
specifications on each and
every piston and hold
tolerances to millionths of
an inch. Also available from
JE is industry-leading
processes like Ultra Crown, a
Digital Three Dimensional
piston crown machining
process and Finite Element
Analysis (FEA). FEA is a
computer process whereby
stress and fatigue are tested
on a computer model before it
goes into production. JE is
the only performance piston
manufacturer to earn the
QS-9000 quality standard
which confirms that JE
provides customers the
highest standards in quality
control. In addition, we also
have State-Of-The-Art
inspection equipment and
testing equipment which
enables us to constantly
bring you, the customer, the
very latest in piston design
configurations.