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Cosworth Ultra-High RPM Dual Valve Spring / Retainer Set
*All other Cosworth products are available through WORKS. Please call 707-933-3893 or email
Cosworth specialized in engineering engine components optimized for high performance engines with the highest possible quality and attention to every last detail.Their ultra racing valve spring kits are designed to maintain precise valve control, even in the most extreme conditions.
Precision and durability are ensured by Cosworth.
Pressure at installed height: 512 N
Pressure at 12.0mm Lift: 900 N
Head Alteration Required: No
Inner Valve Spring: No
Location: Intake and Exhaust
Machining Required: No
1990-1999 Mitsubishi Eclipse
2003-2006 Mitsubishi Lancer Evolution, MR, RS, and SE
These springs are manufactured with chamfered ends from the highest quality chrome silicone steel and are put through a two step heat treatment and stress relief process.
Included with this kit are valve springs, lightweight titanium retainers and hardened steel spring seats.
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