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Supertech Mazda Miata 1.6L Single Valve Spring Kit
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Supertech Mazda Miata 1.6L Single Valve Spring Kit

Supertech
SPTSPRK-MM16-S
1037721241788
Valve Springs, Retainers
1 Units In Stock - Ships Next Business Day
$ 705.83 $ 564.83
$ 564.83

SKU: SPRK-MM16-S / UPC: 1037721241788

Supertech Mazda Miata 1.6L Single Valve Spring Kit

The Supertech Single Valve Spring Kit, designed specifically for the 1.6L B6-ZE engine. This kit transforms valvetrain response, allowing sustained high-RPM operation up to 8,000 RPM while preventing valve float for consistent power delivery in street, track, or autocross applications. Built from premium Superclean Chrome Silicon Vanadium Steel alloy, these springs resist fatigue and maintain precise control under extreme conditions, delivering reliable gains in horsepower and torque that surpass stock components and other aftermarket options. For Miata owners seeking dependable high-revving performance without compromise, this kit stands as the clear solution to unlock your engine's full potential.

Vehicle Fitment

  • Make: Mazda
  • Model: Miata (NA)
  • Engine: 1.6L B6-ZE (inline-4)
  • Years: 1989, 1990, 1991, 1992, 1993

Notes: Direct fit for stock cylinder heads compatible with most aftermarket camshafts and valvetrain upgrades. Verify compatibility with oversized valves if installed.

Kit Contents

This complete valvetrain overhaul kit includes everything needed for a straightforward installation:

  • 16 x Single Valve Springs (Part: SPR-TS1015/Si) – Cylindrical design for even load distribution and reduced harmonics.
  • 16 x Titanium Retainers (Part: RET-TS60/MA2) – Lightweight construction to minimize reciprocating mass.
  • 16 x Steel Spring Seats (Part: SEAT-TS/MA18I) – Precision-machined for secure seating and alignment.
  • Valve Locks/Keepers – Included for immediate assembly (standard Supertech chromoly steel).
  • Installation Hardware – Basic guides and instructions for professional or DIY setup.

No additional components required for a full single-spring conversion on the specified engine.

Technical Specifications

  • Spring Type: Single cylindrical
  • Outer Diameter (O.D.): 27.50 mm
  • Inner Diameter (I.D.): 20.00 mm
  • Seat Pressure: 58 lbs @ 34.10 mm
  • Open Pressure: 157 lbs @ 10.50 mm
  • Maximum Net Lift: 13.40 mm
  • Coil Bind Height: 20.70 mm
  • Spring Rate: 9.40 lbs/mm
  • Material: Superclean Chrome Silicon Vanadium Steel (shot-peened for longevity)
  • Retainer Material: Forged 7075 T6 Aerospace-grade Titanium
  • Max RPM Supported: 8,000+ RPM with proper tuning

These specs ensure stable valve timing and maximum airflow, outperforming factory springs by over 50% in open pressure while keeping overall valvetrain weight low for quicker revving.

Packaging and Shipping Details

  • Part Weight: Approximately 3.00 lbs (kit total)
  • Shipping Box Dimensions: 12.00 in (L) x 8.00 in (W) x 5.00 in (H)
  • UPC: 1037721241788
  • Part Number: SPRK-MM16-S

Order the Supertech Mazda Miata 1.6L Single Valve Spring Kit today for immediate improvements in engine efficiency and durability. Trusted by racers worldwide, this kit provides the precision engineering your Miata demands for peak performance on every drive.

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