Spring. Valve kit. Z40 & NBR Performance race kit. 40PSI at full cam lift

Spring. Valve kit. Z40 & NBR Performance race kit. 40PSI at full cam lift
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£19.99 £16.66 ExVAT

Product Code: 0467

Spring. Valve. Performance race kit. 40PSI at full cam lift.

New option 2mm shim kit to improve pre load

Compatible with Honda YX140 Lifan based heads.

For use with performance cams with 7mm or under extra valve lift.

Springs are 30% stronger to avoid valve bounce and piston collision.

The kit consist of 4 springs to complete one 2 valve engine build.

Perfect for Z40 and NBR cams FAST ROAD

At 22mm compression = 40PSI

To increase the PSI use our 1.9mm shim under the valve spring

VALVE SHIM

 

Product Code 0467
Condition New
Weight 0.1Kg
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