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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.

Part #	Type	O.D.	I.D.	Seat Press	Open Press	Max Lift	Price/ Each	Buy Now
Mazda 626 V6 2.5 L - DOHC KL - 1993-1998
S10138	Dual Spring - TURBO Special Alloy NOTE: This Spring requires Ferrea Titanium Retainer # E11108 and Ferrea Spring Seat Locator # SL1022 (Discard OEM Spring Seat Locator)	19.05 25.3	13.95 19.05	75lbs@ 38.5	180lbs @ 28.5	13.5	$22.85	Qty:
Mazda MIATA 1.6L (B6) / 1.8L - DOHC 16 VALVE (BP056) - 1990-1997 (Hydraulic Buckets) Mazda MIATA 1.8L - DOHC 16 VALVE (BP056) - 1994-2002 (Hydraulic & Solid Buckets)
CUSTOM ONLY - Parts for this application 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. Call us to order custom V. Springs at 603.378.0090