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Kelford 257-B 10.30mm/10.60mm Valve Lift Performance Camshafts for BMW 2015+ - 257-B
Kelford 257-B 10.30mm/10.60mm Valve Lift Performance Camshafts for BMW 2015+ - 257-B - Image 2 Kelford 257-B 10.30mm/10.60mm Valve Lift Performance Camshafts for BMW 2015+ - 257-B - Image 2

Kelford 257-B Camshafts for BMW B58 Engines

The Kelford 257-B camshafts are engineered specifically for high-performance applications in BMW's Gen 1 B58 engines. Designed for setups producing between 750hp and 1000hp, these stage 2 racing cams feature a dual profile of 285? intake and 280? exhaust duration, along with valve lifts of 10.30mm and 10.60mm, respectively. This setup is optimized for use with turbochargers ranging from 62mm to 72mm, making it an ideal choice for those looking to maximize their engine's potential.

Key Specifications

  • Duration: 285? Intake / 280? Exhaust
  • Valve Lift: 10.30mm Intake / 10.60mm Exhaust
  • Turbo Compatibility: 62mm to 72mm
  • Engine Generation: Gen 1 B58 (2015+)

Performance Features

These camshafts maintain compatibility with BMW's Valvetronic and Dual VANOS systems, allowing for full functionality even when utilizing an aftermarket throttle body. For optimal performance, it is recommended to upgrade to Kelford's valve springs, specifically the KVS57-BT, to accommodate the increased lift and duration.

Fitment

The Kelford 257-B camshafts are confirmed to fit the following BMW models:

  • BMW 340i F30/F31/F34 (2016-2018)
  • BMW 440i F32/F33/F36 (2017-2019)
  • BMW M140i F20/F21 (2015-2018)
  • BMW M240i F22/F23 (2017-2018)
  • BMW 540i G30 (2017+)
  • BMW 740i/Li G11 (2016+)
  • BMW 640i G32 (2019-2020)
  • BMW 840i G14/G15/G16 (2018-2022)

Import Notes

  • Kelford products are shipped directly from New Zealand.
  • Customers are responsible for any applicable taxes or duty fees upon import.
Proposition 65

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

Vehicle
2016-2018
 BMW 340i
2019
 BMW 440i
2010, 2017-2023
 BMW 540i
2019-2020
 BMW 640i
2016-2023
 BMW 740i
2015-2018
 BMW M140i
2017-2018
 BMW M240i

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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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