Single Outer Valve Springs — COMP Cams
Strength, Precision, and Tunable Valvetrain Control for Custom Spring Assemblies
When lift increases and cylinder pressure climbs, stock valve springs often cannot keep the valvetrain stable. COMP Cams Single Outer Valve Springs let you build the exact spring assembly your engine needs. Manufactured from Super Clean wire and subjected to rigorous quality control, this outer spring delivers the durability, consistency, and stability required for aggressive cam profiles and elevated RPM ranges.
This is not just a stronger spring. It is a precision engineered component designed to be used as part of a matched assembly or as a high quality single spring replacement.
Engineered for Performance Applications
The single outer design provides a reliable, high rate option when you need strong seat pressure and predictable behavior. When combined with the correct inner spring, retainer, and keepers, this outer spring helps maintain valvetrain stability under elevated lift and aggressive ramp rates. COMP Cams manufacturing process reduces impurities that can lead to premature failure, giving you a spring that performs consistently across the operating range and resists fatigue.
Superior Durability & Valvetrain Stability
A properly matched outer spring improves harmonic control and reduces the chance of coil bind when installed to the correct heights. The included damper helps control harmonics and improves stability when used in appropriate assemblies. These springs meet and exceed the expectations of today’s engine builders and racers by delivering the strength required for modern camshaft technology.
The 12° North Takeaway
A camshaft upgrade is only as effective as the springs that control it. COMP Cams Single Outer Valve Springs give you a precision, high rate option for building a tailored spring assembly. Cleaner wire, consistent rates, and an integrated damper make this outer spring a dependable choice for builders who want to tune spring pressures and valvetrain dynamics without compromise.
If your build is stepping into higher lift or more aggressive cam timing, these springs are the foundation that keeps the entire valvetrain under control.

IMPORTANT NOTICE ON SHIPPING:
*Many products will require the use of a direct shipping quote from one of our CSR agents due to new DIM weights and measure changes as of Jan 10th, 2018 from major carriers.
Packages greater than a square cubic foot are now required to use a “volumetric weight” based upon length, width, height of a package from most carriers which alters actual weights. Oversized / Unique shaped packages are most affected and may not apply to your specific purchase(s). However, IN ORDER to save you, the customer, shipping costs, associated fees, and to keep product costs down, we are taking action to give direct shipping quotes based upon delivery methods available. Your full name and email address, required in the checkout, is so we can offer you a shipping quote. Your item(s) will NOT ship without communication from our CSR agents. We apologize for any inconveniences.*















