Atomic Barra Heavy Duty Timing Chain Kit | Complete
Atomic Barra Heavy Duty Timing Chain Kits Atomic Complete
The Problem
The factory Barra timing system was never designed for high RPM, big cams, or heavy valve springs. Under load, stock chains stretch, plastic guides shatter, and standard crank sprockets wear out. The result? Catastrophic engine failure.
DID YOU KNOW?
Just upgrading valve springs alone will add ~40% increase in load on the timing chain compared to standard. More aggressive, higher lift cams add more yet again. The effect is amplified at higher RPM.
The Atomic Solution
A fully engineered, race-proven timing solution. We don't just replace parts; we upgrade the entire architecture. From our unbreakable billet guides to our heavy-duty chains (nearly 2x factory strength), this kit is built to survive everything from a stock rebuild to a 2500hp monster without sacrificing NVH or reliability. The Genuine Factory Ford tensioners are used exclusively in our kits as they have proven to be the most reliable and durable option available currently.
The complete solution: Chain, Billet Guides, Sprockets, and Tensioner.
Heat-treated, case-hardened billet steel. Unbreakable.
2. The "Unbreakable" Guide
The factory timing chain guide on the tensioner side is made from cast iron and fits loosely on the pivot bolt compared to modern performance engines. We solved it by manufacturing our own tight tolerance guide from Billet Steel.
- Reprofiled Tip: We redesigned the tip geometry to prevent the common plastic failure found in other designs
- Heat Treated: Case-hardened for extreme durability and wear resistance against the tensioner piston
- High clearance from specially chamfered shoulder to avoid contact with timing cover and guide breakage
- Chromoly Pivot: Includes a Billet Chromoly pivot bolt with a nyloc nut to ensure it never backs out under vibration. The play between the factory pivot and guide has been significantly reduced to avoid misalignment and unwanted guide movement
3. HD Chain & Billet Sprocket
Strength where it counts. Our components are refined to handle the stress of high-lift cams and stiff valve springs.
- Heavy Duty Chain: Approximately 2x the strength of the factory chain
- Billet Crank Sprocket: Case-hardened heat-treated steel with tighter manufacturing tolerances to reduce vibration and wear from play and misalignment
- High Polish Chain Links: The smoothest, high quality finish chains we've been able to find. This means less noise, less wear, less vibration through the whole system and engine.
Complete Kit (-C)
The Total Solution (Most Popular).
- Everything in Basic Kit
- Plus: Billet Crank Sprocket
- Plus: Genuine OEM Ford Tensioner
- Plus: All Guides, Bolts, Seals & Gaskets
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