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Ferrea Valve Springs - Mazda 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.

Mazda 626 V6 2.5L - DOHC KL - 1993-1998
Part #	Type	O.D.	I.D.	Seat Press	Open Press	Max Lift	Price/ Each	Buy Now
S10050	Dual Spring - Turbo Special Alloy	18.23mm 25.19mm	13.4mm 18.23mm	75 lbs @ 33mm	195 lbs @ 23mm	13.5mm	$20.99
Valve Springs Require: 1) Ferrea Titanium Retainer #E11026 2) Ferrea Spring Seat Locator #SL1022 - Discard OEM Spring Seat Locator

Mazda Miata 1.6L (B6) and 1.8L - DOHC 16V (BP056) 1990-97 (Hydraulic Buckets)
Part #	Type	O.D.	I.D.	Seat Press	Open Press	Max Lift	Price/ Each	Buy Now
Parts for these applications are no longer offered as stock items due to changes in valvetrain components over their production span. These items must be ordered as custom made parts. Email or call us to order at (603) 378-0090

Mazda Miata 1.8L DOHC 16V (BP056) 1994-'02 (Hydraulic & Solid Buckets)
Part #	Type	O.D.	I.D.	Seat Press	Open Press	Max Lift	Price/ Each	Buy Now
Parts for these applications are no longer offered as stock items due to changes in valvetrain components over their production span. These items must be ordered as custom made parts. Email or call us to order at (603) 378-0090