Kelford Valve Springs for B58 Supra GR/ S58 BMW M2/M3/M4 (KVS58-BT)

Kelford Valve Spring Set for the 2020 GR Supra and MW M Series S58 3.0L Inline 6 was engineered specifically to match the Kelford camshafts for ultimate quality, performance and reliability. Includes a full set of 24 high performance, progressively wound PACALOY beehive valve springs and 24 titanium retainers.

The High Energy, Extreme Racing Valve Springs kit utilises a precision machined spring seat to max out the seat pressure for high boost, high horsepower builds. Specifically designed for Kelford Cams Stage 2 & Stage 3 Camshafts for engines making over 1000HP.

Note:
• Our kit is specifically engineered to work well with our Stage 1, Stage 2, and Stage 3 camshafts to provide exceptional quality, reliability, and performance.
• Extreme kit has been specifically designed for Stage 2 and Stage 3 cams.

Vehicle Fitment:
2020+ Toyota Supra (GR A90 MKV MK5)
B58 Engine
2023+ BMW M2 (G87)
2021+ BMW M3 (G80/81)
2021+ BMW M4 (G82/83)
S58 Engine

Standard Kit Specs:
• 90lb seat pressure @ 36.5mm installed height
• 193lb seat pressure @ 11mm lift
• Coil bind is at 23.6mm

Extreme Kit Specs:
• 105lb seat pressure at 35mm installed height
• 210lb at 10.8mm valve lift
• Spring coil bind height at 23.6mm

Includes:
(24) Beehive Springs
(24) Titanium Retainers

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