Supertech BMW B50 M140i M240i Conical Spring Kit SPRK-B58B

£906.74 Inc Vat

Set of 24 Valve springs, Caps for upgrading your BMW Valvetrain!

Set includes:
24x Dual spring
24x Titanium retainers – 12 pcs

SKU: 4-0104-1-2 Categories: , Tag:


Spring data:

  • Type: Conical Valve Spring
  • Coil Bind 27.00mm
  • Max Net Lift 12.20mm
  • Outer spring outer diameter: 26.50mm
  • Outer spring inner diameter: 18.70mm
  • Inner spring outer diameter: 21.60mm
  • Inner spring inner diameter: 13.80mm
  • Rate: 10.30lbs/mm
  • Open (lift) pressure: 180lbs @ 10mm
  • Seat pressure: 77lbs @ 40.10mm

Conical Valve Spring Kit (SPRK-B58B) by Supertech®. Designed utilizing the latest technology, this product by Supertech features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured to meet or exceed stringent industry standards.

Supertech Valve Springs are made with premium Superclean Chrome Silicon Vanadium Steel Alloy for higher performance and durability at high RPM ranges. The Supertech materials also provide for better memory, which translates into higher performance.

Titanium Retainers are manufactured with high quality, military certified Titanium alloy and CNC machined for a tight fit that will ensure long term durability.

Computer designed to ensure that wire stress levels do not overpass their limits, Supertech Valve Springs are manufactured for long term durability even under the most extreme conditions.

Includes a full set of 24 dual springs and 24 titanium retainers.

Additional information

Weight 0.00000000 kg