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Kelford KVS40-EXTREME Valve Spring & Retainer Kit for Ford 4.0L 6CYL Barra - KVS40-EXTREME
Kelford KVS40-EXTREME Valve Spring & Retainer Kit for Ford 4.0L 6CYL Barra - KVS40-EXTREME - Image 2

Kelford KVS40-EXTREME Valve Spring & Retainer Kit

Introducing the Kelford KVS40-EXTREME?a high-performance valve spring and retainer kit designed specifically for extreme applications in the Ford 4.0L 6CYL Barra engine. This kit is perfect for enthusiasts looking to push their engines to the limits with big boost and high RPMs.

Key Features:

  • PACALOY Beehive Design: The unique beehive shape offers reduced weight and enhanced stability, allowing for higher RPMs without compromising performance.
  • High Seat Pressure: With a seat pressure of 135 lbs at 38.70mm, these springs are engineered to handle the demands of extreme tuning.
  • Strong Coil Bind Resistance: These springs can withstand up to 272 lbs at 12mm with a coil bind at 25.27mm, ensuring reliability even under intense conditions.
  • Lightweight Titanium Retainers: The included titanium retainers not only reduce overall weight but also offer superior strength, making them ideal for high-performance setups.

Benefits:

Upgrading to the KVS40-EXTREME kit means you can confidently push your Ford Barra engine to new heights. The combination of beehive springs and titanium retainers allows for smoother operation at high RPMs, which not only enhances performance but also improves engine longevity. Users have reported noticeable improvements in throttle response and overall power delivery after installation.

Customer Feedback:

"I installed the KVS40-EXTREME on my Barra and couldn't believe the difference it made. The engine feels so much more responsive, and I can finally push it without worrying about valve float!" - James T.

"These springs are a game changer. The quality is top-notch, and the performance boost is definitely worth it. Highly recommend for anyone looking to get serious with their tuning!" - Sarah L.

Technical Data:

For those interested in the specifics, the KVS40-EXTREME features:

  • Seat Pressure: 135 lbs @ 38.70mm
  • Coil Bind Pressure: 272 lbs @ 12mm
  • Coil Bind Height: 25.27mm

Transform your Ford Barra engine with the Kelford KVS40-EXTREME kit and experience the difference in performance and reliability.

Import Notes:

  • Kelford products ship directly from New Zealand.
  • Customers are responsible for all Taxes or Duty Fees.

Proposition 65

⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

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Who is Kelford?

Kelford is a company that was founded in 1968. The company specializes in creating high-performance camshafts for a variety of engine applications. For years, they have provided enthusiasts the chance to have a camshaft that would provide optimum performance and give them the horsepower gain they are searching for. Today, they have turned their small company into a global brand that is trusted by many professional tuners and racers alike.

Continuous Improvement

Kelford is steadily making a name for itself when it comes to manufacturing high-performance camshafts. By continuously investing in their research and development, they are able to design products that are better, if not at par with some of the mainstream brands in the market today.

Quality in Every Product

The company is able to make top quality products by understanding what their customer really needs. Using their experience, knowledge, and understanding of manufacturing, they are able to create products that meet their customer expectations. They use state of the art machinery in order to achieve precision and accurate cuts which is critical when it comes to these engine components.

Purchase Kelford Camshafts at Vivid Racing

If you want a camshaft manufacturing company that understands what it takes to improve your engine performance, then Kelford is the brand for you. With over 50 years of experience when it comes to building camshafts, you know they are a brand that you can trust. Visit Vivid Racing and check out their list of products that would fit your specific requirement.







Kelford Technologies Ltd warrants that when our products are properly installed in their correct application by a qualified tradesperson, they will be free from defect in material and workmanship. Warranty will be void on all products that show evidence of improper application or installation, abuse, lack of proper maintenance, alteration from the original configuration or not used in conjunction with the specified matching components and suitable motor oil. Whilst our company tries to ensure that every item supplied is suitable for the intended application, the final responsibility of product suitability rests with the person installing the item. Kelford Technologies Ltd’s warranty will not apply to watercraft that are not capable of being transported by trailer and exceed eight meters in length.
If a problem should occur, please contact Kelford Technologies Ltd’s technical department to arrange inspection and report.

This Limited Warranty applies only to the original purchaser of the product and only covers the replacement or repair of the product at Kelford’s discretion. Due to the unusual stress placed on these racing components and because we have no control over how they are used the company shall not be responsible for any damage caused by defects or failure of parts. The company shall not be responsible for any consequential damage, injury or death arising from any cause whatsoever, nor for labour, transportation or any other related incurred costs due to the replacement or repair of the defective products.

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