Type: Single Valve Spring Supertech Performance Single Valve Spring, Titanium Retainer an Keeper Kit for the Honda Civic D16Z6, D16Y8 Engines - 60lb. Will Fit Honda Civic D15B, D16Y5, D16Y7, D16Y8, D16Z6, D17A - VTEC SOHC Engines Interchange Part Number: SPR-H1002S Gr 1600 Dt Swiss Supertech 60lb Valve Springs Ti Retainers Keepers For Honda Civic S2000 Honda OE/OEM Part Number: SPRK-H1002S The retainers are manufactured with high quality military certified Titanium alloy, CNC machined for a tight fit that will ensure a long durability. Add to Favorites Manufacturer Part Number: SPRK-H1002S D16 VTEC, Brand: Supertech Performance, Warranty: Yes, Part Brand: Supertech