Supertech Dual Valve Springs for 2012-2015 Honda Civic Si K24Z7 Engines

Supertech Dual Valve Springs for 2012-2015 Honda Civic Si K24Z7 Engines

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Dual Valve Springs for 2012-2015 Honda Civic Si K24Z7 Engines

Set of 16 Dual Valve Springs

SPR-H1000D-Z7
Outer Spring: OD 29.65mm - ID 21.85mm
Inner Spring: OD 20.50mm - ID 15.50mm
Type: Dual Spring
Press.Seat: 67lbs @ 36.4mm
Max Lift: 15.70mm
Coil Bind: 20.70mm
Rate: 11.50mm

SPR-H1005D-Z7
Outer Spring: OD 29.65mm - ID 21.85mm
Inner Spring: OD 20.50mm - ID 15.50mm
Type: Dual Spring
Press.Seat: 80lbs @ 36.4mm
Max Lift: 15.70mm
Coil Bind: 20.70mm
Rate: 11.50mm

SPR-H100DR-Z7
Outer Spring: OD 30.20mm - ID 22.20mm
Inner Spring: OD 22.20mm - ID 16.80mm
Type: Dual Spring
Press.Seat: 86lbs @ 33.4mm
Max Lift: 14.90mm
Coil Bind: 18.50mm
Rate: 12.50mm

Note: These Dual Valve Springs require the use of Supertech Retainer Part # RET-K24Z7/T1 - (Sold Separately)

Our valve springs are computer designed to ensure that wire stress levels do not overpass the limits of stress defined in the diagrams of fatigue. We also utilize computer software that allows us to ensure that the harmonics are under control. All Supertech valve springs are made with premium super clean Chrome Silicon Vanadium Steel alloy for higher performance & durability at high rpms. Using high quality steel alloy also provides the added benefit of better structural memory for all of our springs, giving your performance racing engine a serious competitive advantage.