Description
Product Overview
The T&D Machine Products Rocker Arm Shaft is a precision‑machined steel component designed for high‑performance automotive applications. Weighing only 9.4 ounces and measuring 8.8 x 5.5 x 1.5 inches, this shaft delivers a perfect balance of strength and lightweight construction. Engineered to meet OEM specifications, it features a hardened steel alloy that resists wear and maintains consistent valve timing under extreme conditions. The model 2251‑160/160 fits a wide range of engines, offering a reliable solution for both replacement and upgrade projects.
Usage
This rocker arm shaft is ideal for performance enthusiasts, race teams, and everyday drivers seeking improved engine reliability. Install it in street‑legal vehicles, track cars, or off‑road machines where precise valve actuation is critical. Its compact size allows easy integration into tight engine bays, and the steel construction ensures it can handle high RPMs and aggressive cam profiles without deformation. 
Why Choose Us
T&D Machine Products has a reputation for engineering excellence and rigorous quality control. Each shaft undergoes heat treatment and dimensional inspection to guarantee tolerance compliance. Our commitment to durability means you receive a component that outlasts standard OEM parts, reducing maintenance intervals and enhancing overall engine performance. Backed by a proven track record in the automotive aftermarket, this shaft offers peace of mind for demanding applications.
Key Features
- Hardened steel alloy for superior wear resistance
- Lightweight design at only 9.4 ounces for reduced inertia
- Precision‑machined dimensions ensure perfect fitment
- Compatible with standard rocker arm assemblies (model 2251‑160/160)
- Rigorous heat‑treatment process for consistent performance
FAQ
Is this shaft compatible with my existing engine?
The shaft is designed to match the specifications of the 2251‑160/160 model series, which is common in many performance and replacement engine builds. Verify your engine’s rocker arm dimensions to ensure compatibility.
What material is used for the shaft?
It is manufactured from a high‑grade hardened steel alloy that provides excellent strength and resistance to fatigue under high‑rpm conditions.
Can this shaft be used in racing applications?
Yes, its lightweight construction and durable material make it suitable for both street and track use, handling aggressive cam profiles and high engine speeds.
How does the weight affect engine performance?
The reduced mass lowers reciprocating inertia, allowing the valve train to respond more quickly, which can improve throttle response and overall engine efficiency.
What warranty does T&D Machine Products offer?
The shaft comes with a limited warranty covering manufacturing defects, reflecting the brand’s confidence in its quality and durability.





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