Supertech dual valve springs with retainers for k-series and S2000 engines.
Choose between 80, 95 and 97.
- SPRK-H1022D (80 lb) Stock cam extra pressure light boost
SPRK-H1021D (95 lb) All motor / aftermarket cams
SPRK-H1019D ( 97 lbs) High Boost Turbo use - Outer Spring 30mm OD / 21.8mm ID
- Inner Spring 21.3mm OD / 15.5mm ID
- Valve springs made with premium Superclean Chrome Silicon Vanadium Steel Alloy
- Retainers are made from titanium
- Includes seats
- Computer designed to ensure that wire stress levels do not overpass the limits for long durability
- Works in K20A2, K20A3, K24A2, K24Z3, K20Z1, F20C1, F22C1, K20C2, K20Z3, Engines
If you are planning to upgrade your valve springs in engines after 2006 You will need to change the spring seats as well. 2007+ engines use single valve springs and the single spring seat will not work with dual springs. You also need the 02-04 valve keepers. We have different options available TRC Titanium Spring Seats
