Features & Benefits of T&D shaft-mount roller rocker systems T&D rocker arms have an oil passage (see diagram) built into most rocker arms to channel pressurized oil from the pushrod cup to the shaft bearings and then on to the roller tip. T&D’s 7/16” adjuster screw and heat-treated alloy steel jam nut are the largest in the industry, giving more thread contact area to positively secure lash settings. Each adjuster is broached for a big 3/16″ socket to eliminate twisted hex keys. T&D’s larger diameter shafts are made from 4130 steel, deep case hardened and tempered for maximum wear resistance and strength. T&D aluminum rocker bodies use 2024 aluminum made to our specifications for improved tensile and yield strength, and increased notch sensitivity, fatigue resistance, strength at elevated temperatures and chemical resistance. T&D has gone to great lengths to find the right material to use in its steel rocker bodies, which remains proprietary. Extensive R&D, and constant hands-on usage, has given T&D a distinct advantage in the area of steel rocker development. Presently, many of the steel rockers are within a few grams of the aluminum ones they replace. Every T&D rocker system is designed with racers and ease of installation and maintenance in mind. Most applications require no head modifications, no machining of any kind. If machining is required, full instructions are included. All hardware and shims necessary to attach a rocker system are included. On models with individual shafts, individual rockers can be removed quickly for valve spring service. Most T&D rocker systems are rebuild-able. T&D tests every rocker arm against the competition for weight, mass moment of inertia, deflection, hardness and cycle durability. Through this testing, T&D rockers have been continuously improved to be the lightest, most efficient, and most durable rocker arms on the market. Through rigorous on-track testing, T&D rocker arms have survived the torture tests, in all forms of racing.
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Questions & Answers (6)
Customer questions & answers
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Are these compatible with the BES 12 degree CID’s? Do you offer in a 1.85 ratio? What is lead time and cost?
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Q Are these compatible with the BES 12 degree CID’s? Do you offer in a 1.85 ratio? What is lead tim...... Read more answer nowAsked by Bill K on June 30, 2023 6:02 pmA This particular set up is for factory castings. To get the set to fit the CID BES head we would have to special order directly from T&D. Unknown pricing untill we reach out to them.
Shaft assembly 00081 stamped behind cyl-2 and 8 exhaust spring , what application heads are these for , sbc race and what offsets can be used for this stand ----? What heads were they engineered for ? Please update !
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Q Shaft assembly 00081 stamped behind cyl-2 and 8 exhaust spring , what application heads are these...... Read more answer nowAsked by William on March 26, 2023 9:20 amA I’m unsure you’d need to reach out to t&d on something like that
Do you have rocker t@d 2482
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A No we do not
Do you have T&D LS7 Jessel bolt pattern rockers available. Thank you. John
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Q Do you have T&D LS7 Jessel bolt pattern rockers available. Thank you. John answer nowAsked by John on February 5, 2022 3:09 pmA Don't stock these
Will these fit the LSX 454 crate motor....with no modification...??
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Q Will these fit the LSX 454 crate motor....with no modification...?? answer nowAsked by Dan lendvay c/o Thunderbolt Motors on April 13, 2021 11:52 amA They will not fit on that platform
Will these work on the RHS LS7 heads?
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A Just checked the T&D website these are not listed for the RHS head. Shows a part number 2389
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