Toyota K engine dual valve springs with Titanium retainers.
Suitable for all K, 3K, 4K and 5K applications. Road, rally, race or drift.
Designed for use in engines with modified camshafts which typically require the engine to spin faster in order to make more power. These springs will better control the valve motion and therefore allow a higher engine RPM before valve bounce occurs (ie the loss of valve control point). These springs also allow camshafts to have more aggressive acceleration ramps, ie open the valve faster.
The retainers accept factory locks (collets), which Toyota Heritage can supply if needed.
The original factory standard installed height will provide 38.6kg (85lb) on the valve seat. The table below gives all the data.
Can ship worldwide - no problems for overseas buyers.