Manley Performance RET-TI SUPER 7 1.560

• Engineered to provide the optimum balance of
  fatigue strength, weight and stress distribution.
• Holes precisely located through the retainers' cross
  section introduce oil to the valve spring at the
  critical inner to outer spring interface, greatly
  extending valve spring life.
• Heat treated titanium material for maximum strength
• Impingement results in a 20% improvement in resistance to
  abrasion, a 30% improvement in fatigue strength, and
  an overall improvement in surface finish
• Available with or without our exclusive impingement surface enhancement process

Specifications

• Double Spring Type
• Spring O.D : 1.560"
• Keeper Degree : Super 7
• Dimensions :( A)1.500", (B)1.120", (C).805"