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.


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

 

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

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.

 


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.


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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