Dyno Premium Boxstock Class 10.8 lb Valve Spring for Clone Engines

Engineered through rigorous testing, this premium valve spring from Dyno sets the standard for boxstock class racing in Clone engines. Its 10.8 lb rating provides the ideal balance of control and compliance, helping you maintain consistent valve timing for smoother operation and faster laps.

• High-quality construction from superior wire for longevity under race conditions
• Specific pressures: 11.7 lbs average at .850" lift, 20.2 lbs at .650"
• Designed to complement Dyno camshafts, enhancing overall engine efficiency

While some prep work is needed to meet exact legal specs, the performance payoff is undeniable—better throttle response and reduced power loss at high speeds. Kart enthusiasts praise its reliability in competitive environments. Always inspect upon installation to align with NKA/AKRA rules, ensuring you're race-ready without penalties.

Disclaimer: Verify spring compliance before use to avoid disqualification.

SKU: DCS-VS

Frequently Asked Questions

Q: Is this valve spring legal for all Boxstock Clone racing classes?

A: While this spring is designed for Boxstock class racing, rules can vary by organization (NKA/AKRA). Always verify your specific series rulebook and inspect the spring upon installation to ensure it meets the required legal specifications for your event.

Q: What is the recommended installation procedure for these springs?

A: These springs should be installed by a qualified engine builder. Ensure you check your installed height and spring pressure to match your camshaft profile. Always inspect the spring for proper seating and alignment during installation to prevent premature failure.

Q: Can I use these springs with a modified camshaft?

A: These 10.8 lb springs are specifically engineered to complement Dyno camshafts for Boxstock applications. If you are running a high-lift or aggressive modified camshaft, you may require a higher-pressure spring kit to prevent valve float.

Q: How often should I replace my valve springs?

A: Valve springs are wear items. For competitive racing, it is recommended to monitor your spring pressures regularly. If you notice a drop in performance or inconsistent valve timing, it is time to test and potentially replace your springs to maintain peak engine efficiency.

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