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After years of in-house R&D and with the help
of 2005 and 2006 AHDRA Pro Gas Champion Mike Lozano,
we are pleased to announce the release of our V-Twin
motorcycle components. One of the weakest areas of
a typical V-Twin engine has been the valvetrain. The
stock type rockers along with high spring loads and
14” pushrods encounter a severe amount of deflection
robbing the engine of horsepower, rpm and valvetrain
stability. Through JESEL’s 27 years of involvement
in valvetrain development with affiliations such as
NASCAR and NHRA, JVT has developed a rocker system
that is second to none. Innovations such as a 2.000”
pivot length rocker secured to a .625” thick
steel base plate corrects geometry and ensures that
the rocker can be torqued properly to prevent rocker
deflection. To complete this bullet-proof valvetrain
system JVT offers large diameter, cutting-edge, solid
roller lifters and custom tapered pushrods. A .937”
diameter roller lifter that features a pressure fed
oiling circuit provides a constant flow of oil to
the roller needle bearings. Tapered modular pushrods
with a center diameter of .562” and a wall thickness
of .120” reduces pushrod deflection to a minimum.
So what’s the gain from all of this? Increased
rpm, horsepower and a valvetrain that’s not
beating itself to death.
Want more proof? Just look around the pits or better
yet, look at the qualifying sheet…up near the
top.
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Rocker
Box Features:
CNC-Machined
Billet Upper Rocker Box is designed for
maximum frame-to-cover clearance
Lower
Rocker Box is uniquely machined to each
cylinder head to provide for correct geometry
.625”
thick steel plates secure rocker
systems to cylinder head
Valve
Spring Oilers |
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Lozano
Bros. Porting P.S. 45
VTW-LBPS-00
S&S Pro Stock
VTW-SSPS-00
Ultra Pro Machining Billet
VTW-UPBH-00
Baisley Cast XR Head
VTW-BCXR-00
Standard
Features:
Tool
Steel Ball Adjusters
Shotpeened 70 Series Billet Aluminum
Timken Thrust Bearings
Timken Needle Bearings
.250" Wide Needle Roller
Stands Available in .025" Increments
ARP Hardware
Spring Steel Torsion Tube
Kit
Contents:
Upper
Rocker Box
Lower Rocker Box
Steel Base Plate
Intake Rockers
Exhaust Rockers
Rocker Stands
ARP mounting Hardware
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S&S
TWIN CAM HEAD
VTW-SSTC-00
All
JVT twin cam rocker systems are designed on
an individual basis. In order to properly fit
your head with the ultimate rocker arm system,
it is highly recommended that you ship your
cylinder heads to us. |
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The George Smith / George Bryce designed S&S®
Billet 60° Pro Stock engine has been a dominant
piece in NHRA and AHDRA competition. There’s
no doubt that this “beautiful beast” is
a masterpiece that will be a force to be dealt with
for years to come. We at JVT appreciate high quality
engineering and are proud to make available a valvetrain
system that will enhance the performance of this already
awesome power-plant. By replacing the stock aluminum
pedestals, machining the heads for additional mounting
hardware and installing billet steel stands, the rocker
arms can be fastened to the cylinder head more securely.
We‘ve also incorporated advanced rocker arm
technology by utilizing our J2K series design to include
as standard features a .250” wide needle bearing
nose roller to reduce friction, a shotpeened finish
70 series aluminum body for increased strength, a
MoHawk lightening beam for the lowest moment of inertia,
and a full radius ball-type adjuster to reduce friction
between the adjuster and pushrod. The 2.000”
pivot length rocker bodies can be ordered with a ratio
up to 2.2:1 and the billet steel stands are available
in height increments of .050” to adjust for
proper rocker geometry. JVT also uses ARP hardware
throughout its rocker systems to properly secure the
components.
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S&S
/ G² RACING BUELL HEADS
VTW-K2A-SP1164
Standard
Features:
Rigid
MoHawk Center Beam
Tool Steel Ball Adusters
Profile Tail
Billet Steel Stands
Shotpeened Surface Finish
.250" Wide Needle Roller
Additional
Features:
Solid
Body
Titanium Stands |
| For
all of your automotive valvetrain needs please visit
JESEL Valvetrain Innovation at www.JESEL.com
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