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The Ferrea dual valve spring set for Toyota 3S-GTE engines carries a 305 lbs/in rate and is supplied as a 16-piece kit. These springs are intended to provide the specified spring rate in dual-spring valvetrains for the 3S-GTE family, pairing with compatible inner springs and retainers to maintain valve control under boost and elevated RPM. Sold as a matched set.
Ferrea Toyota 3SGTE 305lbs Rate Inch Dual Valve Spring - Set of 16
