Supertech Astra VXR Z20LEH Double Valve Springs
- 16x double valvesprings
- 16x Titanium retainers
- 16x Titanium Seats
- Outer Spring — 27.50mm OD — 20.00mm ID
- Inner Spring — 20.00mm OD — 15.20mm ID
- 80lbs seat pressure — 75 lbs @ 35.10mm
- 14.40mm Max Net Lift
- 20.70mm Coil Bind
Supertech performance valve springs are made with premium Superclean Chrome Silicon Vanadium Steel Alloy for higher performance and durability.
Computer designed to ensure that wire stress levels do not overpass the limits for long durability under extreme conditions
and harmonics are well under control.
Supertech Valvetrain has proven in a variety of motorsports applications from mild 150 horsepower street engines to 1000+ Horsepower race cars.
Don’t be fooled by lesser quality valvetrain components,
stick with Supertech and get the quality you deserve for your project that will fit right the first time and offer superior performance and longevity.
Supertech Retainers are manufacturer with high quality military certified Titanium alloy,
CNC machined for a tight fit that will ensure a long durability.