Super Clean Hi-Tensile Chrome-Silicon Steel
Specially Formed Structural Process for maximum performance & duability
Independently tested to out-perform any other steel valve spring on the market
Each set is 100% quality inspected & pressure matched
Longer life means more laps per dollar
Lower Cost, Winning Performance!

Primarily for Pro Stock engines with hi-lift camshafts.These springs deliver the open pressures required to maintain valve train stability, RPM and long spring life. These springs are also an excellent choice for Comp Eliminator & Pro Mod engines applications with aggresive cams. Set of 16

• 1.677 OD dual
• .635 ID
• 1.070 max lift
• 415 lbs @ 2.300 installed height
• 1215 lbs @ 1.250 open pressure
• Spring rate 765 lbs
• Coil Bind 1.180

Use Titanium Retainer# 509