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 supercharged alcohol where the ultra version heat-treated valve springs are needed, 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 Pro Stock, Comp Eliminator & Pro Mod engines applications with aggresive cams. Set of 16

• 1.677 OD dual
• .635 ID
• 1.000 max lift
• 375 lbs @ 2.200 installed height
• 1145 lbs @ 1.200 open pressure
• Spring rate 770 lbs
• Coil Bind 1.142

Use Titanium Retainer# 509