Isky Racing Cams 9998-RAD Tool Room Dual Valve Springs with Damper - RAD-9000 Set of 16

The Isky Racing Cams 9998-RAD is a professional-grade dual valve spring set designed for high-performance racing applications. Part of Isky's RAD-9000 Tool Room series, these valve springs are engineered to withstand extreme high-RPM conditions and sustained redline operation that would destroy conventional valve springs.

RAD-9000 Processing Technology:

These springs utilize Isky's proprietary Radial Densification (RAD) process, which optimizes the physical properties and endurance characteristics of the spring material. Manufactured from high-alloy steel, every spring undergoes rigorous pass-or-fail endurance testing to ensure only the strongest components make it into your engine.

Key Specifications:

• Outer spring diameter: 1.600 inch O.D. / 1.150 inch I.D.
• Inner spring diameter: 1.040 inch O.D. / 0.740-0.745 inch I.D.
• Spring rate: 600 lbs/in
• Seat pressure: 250 lbs at 2.050 inches installed height
• Open pressure: 735 lbs at 1.250 inches
• Coil bind height: 1.160 inches
• Includes integrated damper spring
• Set of 16 springs

Applications:

Designed specifically for endurance oval track racing and high-RPM engine builds where valve train stability is critical. The dual spring design with damper effectively eliminates resonant vibration that can cause valve float and catastrophic engine failure at sustained high RPM operation.

These Tool Room precision valve springs provide the reliability and performance required for professional racing applications where engine failure is not an option.