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Ferrea Valve Springs - Scion For ALL racing environments! Developed from high strength alloys Springs are heat treated and stress relieved = increase in spring's life! Provide stability needed for high lift and high RPM. Minimizes load loss for today's aggressive valvetrain combo's. "Harmonics or high frequency fatigue is present in ALL racing engines and will usually destroy the valvetrain if not controlled! Properly designed valve springs will control the dominant harmonics, provide the needed stability, and reduce valvetrain component wear." IMPORTANT: All Valve Springs require Retainers and Spring Seat Locators. See requirements listed under Part #'s.

Scion TC 2.4L DOHC 16V (2AZFE) 2025
S10110	Single Spring - Turbo Special Alloy	25.19	-	80 lbs @ 34.2mm	150 lbs @ 24.2mm	12.5mm	$14.99
Valve Springs Require: 1) Ferrea Titanium Retainer #E11075 2) 2) Ferrea Spring Seat Locator #SL1063 - Discard OEM Spring Seat Locator