1KD-FTV Upgraded Valve Springs

Performance valve spring kit to suit Toyota 1KD & 2KD engines.

Spring construction: 7 coils, 2.9mm thick, anti-clockwise, ID = 17.8mm (0.700"), OD = 23.65mm (0.9311")

Installed spring pressure: 19.05 kg (42 lbs.) @ 34.29 mm (1.350") This is a 40% increase over OE spring.

Open spring pressure: 34.01 kg (75 lbs.) @ 25.4 mm (1") This is a 37% increase over OE spring.