Lightweight competition valve spring kit - Racing with titanium retainer

Compatible with supercharged or turbo applications
Designed with a higher spring rate and compatibility with high lift compared to original springs
CNC-machined titanium retainers or H.T. steel (heat-treated) and double Cr-Si (chromium-silicon) alloy springs provide valve train control at high rpm and allow the use of high-performance camshafts.
Manufactured in the USA
The exhaust spring includes a progressive pitch inner spring, which must be installed with the tighter end resting on the H.T. steel base washers.
The kit includes:
2x CrSi inlet valve springs
2x CrSi exhaust valve springs
2x titanium intake retainers
2x titanium exhaust retainers
2x H.T. steel intake base washers
2x steel H.T. exhaust base washers



Specifications


Brand
KIBBLEWHITE


Supplier reference
30-30720


Application
Exhaust, Intake


Spring lift
0,440"


Spring lift
0,440"


Material
Chromium-silicon alloy


Gasket material
Titanium


Model
Lightweight Racing


Product name
Spring kit


Seat spring pressure
Intake 40 lb, exhaust 70 lb


Open spring pressure
Intake 147 lb, exhaust 203 lb


Type
Valve


Units
Kit