One of the weakest areas of a typical V-Twin engine is the valvetrain. The stock type rocker arms along with high spring loads and 14” pushrods encounter a severe amount of deflection robbing the engine of horsepower, rpm and valvetrain stability. Finally, there is a solution. Our kits include innovations such as a 2.000” pivot length rocker secured to a .625” thick steel base plate that corrects geometry and ensures that the rocker can be torqued properly to prevent deflection. JVT also 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.
Tool Steel Ball AdjustersShotpeened 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
All JVT twin cam rocker systems are designed on an individual basis. In order to 45° & 60° FOUR CAM SYSTEMS AVAILABLE FOR Lozano Bros. Porting P.S. 45 S&S Pro Stock Ultra Pro Machining Billet Baisley Cast XR Head
45° TWIN CAM SYSTEMS AVAILABLE FOR S&S TWIN CAM HEAD
Upper Rocker Box Lower Rocker Box Steel Base Plate Intake Rockers Exhaust Rockers Rocker Stands ARP Mounting Hardware
All JVT twin and four 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 dominant 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.
As an alternative to the aluminum bodied J2K system, the engineers in the Jesel JVT department designed a steel bodied rocker system to further reduce rocker deflection. The J2S MoHawk designed steel body features a 2.000" pivot length rocker and is supplied standard with a Tool Steel Ball Lash Adjuster and a .250" wide Needle Bearing Nose Roller. The stability of the rocker is greatly increased with the use of the steel box anchored to the cylinder head by the way of dual 7/16" ARP studs. These custom built rockers can be tailored to your specific valvetrain needs. Call for details.
WE'VE NOW EXTENDED OUR ENGINEERING AND DESIGN SERVICES DIRECTLY TO OUR CUSTOMERS!
SERVICES INCLUDE - Faro Arm Mapping - Solid Works Engineering - Finite Element Analysis -Rapid Prototyping - Spectroscopic Analysis - 5 Axis CNC Machining - Laser Engraving
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Rocker Arms - Sportsman Series Rocker Arms - Pro Series Rocker Arms - Pro J2K Series Rocker Arms - Pro Steel Series Rocker Arms
Lifters - Solid Body Tie Bar Roller Lifters - TS Series Dog Bone Roller Lifters - TS Series Tie Bar Roller Lifters - TS Series Keyway Roller Lifters - Bushings & Retainer Kits
V-Twin - Rocker Arms - Roller Lifters - Pushrods - Components
Catalogs & Pricelists
Jesel Inc. 1985 Cedar Bridge Ave. Suite 2 Lakewood, NJ 08701
Phone: Custom Shop Phone: Sales / General Fax: Shipping Fax: Accounting Fax:
HOURS OF OPERATION
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