Kelford Cams Race Spring and Retainer Set - Nissan RB25 Engines

Kelford Cams Race Spring and Retainer Set - Nissan RB25 Engines

The KVS25-R is the best spring for the ever popular RB25 on the market to date!

Made in the USA with the best Pacaloy wire available, these springs are designed in house by Kelford Cams in conjunction with PAC Springs who have manufactured them to Kelford's required specifications for the RB25.
This is not just another spring that fits in the hole -  it's development has been on the back of 25 years’ experience working with this engine.

Kelford have created the spring to work with the stock retainer so that it provides the correct pressures and frequencies needed to control the valve train. The Spring retails for £593.04 inc. VAT which is great value for this purpose designed spring kit.

Product specifications are:

83lb at 30.40mm installed height on the intake,
80lb at 30.65mm installed height on the exhaust.
10.50mm maximum lift.

This product is compatible with the following vehicles

Vehicle Make Vehicle Model Vehicle Variant From To Engine Notes
Nissan Skyline RB25 2.5L - RWD Petrol

Kelford Cams are situated in the city of Christchurch which is on the South Island of New Zealand. We are a world class camshaft company, specializing in design and manufacture of high performance camshafts for the motor racing industry.

Custom one off camshafts have been Kelford Cams specialty since 1968 so if you need one cam or one thousand camshafts, we can help you achieve your desired performance expectations.

Kelford Cams have been producing high quality racing camshafts since 1968 but it is only in the last seven years that we have been operating with ultra modern design systems and CNC grinding machinery.

Their new racing camshafts are among the best available anywhere in the world and are found in many record breaking race engines in all forms of motorsport. Whether it be professional or amateur racing, we have the will to win and we will do our best to help our customers win.


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  • RRP: €405,79 (incl. Tax)
  • Ex Tax: €341,00