Built for strength and durability, the Atomic Chromoly Retainer Set is the ideal choice for high-performance Ford Barra DOHC 6-cylinder engines that demand reliable valvetrain control without compromising longevity.
Manufactured from heat-treated chromoly steel, these retainers are designed to handle increased spring pressures, aggressive camshaft profiles, and extended RPM use — all while maintaining factory-like fit and function. Used in nearly every Atomic-built engine, these retainers are a proven, cost-effective upgrade for both street and race applications.
✅ Key Features:
✅ Suits all Ford Barra DOHC 4.0L 6-cylinder engines ✅ Set of 24 chromoly steel retainers – complete engine set ✅ Precision-machined and heat-treated for strength ✅ Ideal for use with standard or aftermarket valve springs ✅ Compatible with OEM and Atomic valves ✅ Perfect for high-boost street builds, drift, and competition engines ✅ Also available in titanium for those chasing ultimate weight savings
🛠️ Why Choose Chromoly Retainers?
✔️ Extremely strong and resistant to fatigue under high spring loads ✔️ Cost-effective option for reliable valvetrain upgrades ✔️ Used in 1000+hp Atomic engine builds Australia-wide ✔️ Compatible with performance cams and HD valve springs ✔️ Drop-in replacement – no modifications required
📦 What’s Included:
Set of 24 chromoly valve spring retainers – full coverage for all 6 cylinders
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Description
Description
Built for strength and durability, the Atomic Chromoly Retainer Set is the ideal choice for high-performance Ford Barra DOHC 6-cylinder engines that demand reliable valvetrain control without compromising longevity.
Manufactured from heat-treated chromoly steel, these retainers are designed to handle increased spring pressures, aggressive camshaft profiles, and extended RPM use — all while maintaining factory-like fit and function. Used in nearly every Atomic-built engine, these retainers are a proven, cost-effective upgrade for both street and race applications.
✅ Key Features:
✅ Suits all Ford Barra DOHC 4.0L 6-cylinder engines ✅ Set of 24 chromoly steel retainers – complete engine set ✅ Precision-machined and heat-treated for strength ✅ Ideal for use with standard or aftermarket valve springs ✅ Compatible with OEM and Atomic valves ✅ Perfect for high-boost street builds, drift, and competition engines ✅ Also available in titanium for those chasing ultimate weight savings
🛠️ Why Choose Chromoly Retainers?
✔️ Extremely strong and resistant to fatigue under high spring loads ✔️ Cost-effective option for reliable valvetrain upgrades ✔️ Used in 1000+hp Atomic engine builds Australia-wide ✔️ Compatible with performance cams and HD valve springs ✔️ Drop-in replacement – no modifications required
📦 What’s Included:
Set of 24 chromoly valve spring retainers – full coverage for all 6 cylinders
