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Ferrea Valve Springs - Toyota 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.

Part #	Type	Inner OD	Outer Chrome Silicon	Seat Press	Open Press	Max Lift	Price/ Each	Buy Now
Toyota 4AG 1.6L DOHC 16V (Atlantic) 1983-'88
S10080	Single Spring Special Alloy	23.5mm	16.46mm	40 lbs @ 35mm	120 lbs @ 25mm	12mm	$17.25
Valve Springs Require: 1) Ferrea Titanium Retainer #E11046 2) Factory supplied Spring Seat Locator
Toyota MR2 2.0L, DOHC 16 Valve (Turbo 3SGTE), 1990-'95
S10034	Dual	20.8mm	28.0mm	65 lbs @ 35mm	185 lbs @ 25mm	14mm	$21.99
Valve Springs Require: 1) Ferrea Aluminum Magnesium Retainer #E10022 2) BOTH Ferrea Spring Seat Locator #SL1007 AND Factory supplied Spring Seat Locator
Toyota 2.0L 3SGE
S10073	Dual Spring Turbo Special Alloy	20.8mm	28.0mm	87 lbs @ 34mm	195 lbs @ 24mm	12.5mm	$21.99
Valve Springs Require: 1) Ferrea Aluminum Magnesium Retainer #E11042 2) Ferrea Spring Seat Locator #SL1032 - Discard OEM Spring Seat Locator
Toyota Supra 3.0L I/L 6 Cyl DOHC 24 Valve (2JZGE-2JZGTE), 1994-'98
S10033	Dual	20.8mm	28.0mm	65 lbs @ 35mm	185 lbs @ 25mm	14mm	$21.99
Valve Springs Require: 1) Ferrea Titanium Retainer #E11011 2) BOTH Ferrea Spring Seat Locator #SL1001 AND Factory supplied Spring Seat Locator
S10045	Dual Spring - Turbo	20.8mm	28.0mm	87 lbs @ 34mm	195 lbs @ 24mm	12.5mm	$21.99
Valve Springs Require: 1) Ferrea Titanium Retainer #E11037 2) BOTH Ferrea Spring Seat Locator #SL1001 AND Factory supplied Spring Seat Locator Note: For high pressure use BOTH Ferrea Spring Locator #SL1001 and #SL1060 (Discard OEM Spring Seat Locator)
S10109	Dual Spring - Turbo High Pressure PAC Alloy	20.8mm	28.0mm	115 lbs @ 34mm	245 lbs @ 24mm	11mm	$31.99
Valve Springs Require: 1) Ferrea Titanium Retainer #E11037 2) BOTH Ferrea Spring Seat Locators #SL1001 AND #SL1060 (Discard OEM Spring Seat Locator)
Toyota Supra 3.0L, DOHC 24 Valve (7MGE-Turbo 7MGTE), 1986-'92
S10044	Dual Spring - Turbo	18.23mm	25.19mm	67 lbs @ 34mm	177 lbs @ 24mm	14mm	$21.99
Valve Springs Require: 1) Ferrea Titanium Retainer #E11022 2) BOTH Ferrea Spring Seat Locator #SL1016 - Discard OEM Spring Seat Locator