SUPERTECH H1021D Valve Springs SET (K/F-serie engines)

SUPERTECH valve springs are made of an extreme pure chrome-silicon-vanadium-steel alloy to assure a very good durability for performance motors with high revolutions.
They are developed with the use of computer simulations to prevent material fatigue under extreme conditions.
The SUPERTECH holder/retainers are made of a certified titanium alloy and CNC milled for the perfect fit to provide a long durability.
Specifications:
Type: Dual Spring
Press.Seat: 95 @40.40mm
Max Lift: 17.70mm
Coil Bind: 22.70mm
Rate: 13.20 lbs/mm

Retainer: RET-K20A2/T2 (not included)
Spring : SPR-H1021D
Seat Locator : SEAT-H1020DS (not included)

This is a full kit for 16 valves.