Kelford KVS250-EXTREME Ford EcoBoost 2.3L Extreme Race Springs and Retainers
A PAC-ALOY beehive spring and titanium retainer kit built for extreme EcoBoost race applications. This is the valve spring upgrade our team recommends when you’re running max lift, high RPM, and serious boost, well beyond what our standard KVS250X-T kit is built for.
Features:
- PAC-ALOY beehive spring and titanium retainer construction
- Installs at 37.60mm (1.480″) to give 106lb seat pressure
- 215lb open pressure at 11.5mm lift
- Coil bind at 24.4mm
Note: recommended for engines running 40+ psi of boost or turning 8500+ rpm. ExVCT delete required.
Applications: Ford EcoBoost 2.3L, pairs with our 250-A and 250-B series camshafts for extreme builds
Available at Engineered Motorsport Solutions INC.
www.emsinc-tn.com | (423) 500-4901 | Sales@emsinc-tn.com
We recommend having these installed by a trained professional, as valve lash and timing needs to be reset. Please feel free to contact us for a quote on installation at: engineeredmotorsportsolutions@gmail.com














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