Hardened Green Stripe Box Stock Valve Spring 10.8 lbs for Clones

Maximize box stock potential using the DCS-BSH Dyno Valve Spring, hardened with green stripe for 10.8 lbs at 0.850" height.

• Rule-Compliant: Takes full advantage of updated Clone spring regulations.
• Added Pressure: Boosts at max lift for better control.
• Non-Tested Version: Same as DCS-BSHM but without factory check; green marked.

This upgrade organizes your valve system for smoother high-RPM operation, directly improving speed and endurance in races.

Heat-treated for 2013, it withstands demands while keeping setups legal and efficient.