SKU: 53332875328

Supertech Single Valve Spring Kit - Honda Civic Type-R FK8 K20C1

Sale price$295.36 Regular price$328.18
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Ships within 48 hours · Estimated delivery Jul 25 - Jul 30

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Description

Supertech Single Valve Spring Kit - Honda Civic Type-R FK8 K20C1Supertech now offers a performance single valve spring, retainer, and spring seat kit for the Honda Civic Type R (FK8) K20C1 engine application. Supertech Single Valve Springs: Supertech performance valve springs are made with premium Superclean Chrome Silicon Vanadium Steel Alloy for higher performance and durability. Computer designed to ensure that wire stress levels do not overpass the limits for long durability under extreme conditions and

Supertech now offers a performance single valve spring, retainer, and spring seat kit for the Honda Civic Type-R (FK8) K20C1 engine application.

Supertech Single Valve Springs:
Supertech performance valve springs are made with premium Superclean Chrome Silicon Vanadium Steel Alloy for higher performance and durability. Computer designed to ensure that wire stress levels do not overpass the limits for long durability under extreme conditions and harmonics are well under control.

Supertech Titanium Retainers
Supertech titanium retainers prevent valve float and strength up your valvetrain. Retainers are CNC machined from 6AL4V grade titanium.

Supertech Spring Seat Locater
Supertech spring seats are made from high grade steel and aide in the upgrading to dual valve springs. Thickness of spring seats may vary.


Valve spring & retainer kit specs:

K20C1 - 16pc single valve springs / 16pc titanium retainers / 16pc steel spring seats

  • Open Pressure: 176 @ 10
  • Max Lift: 13.80mm
  • Coil Bind: 27.30mm
  • Rate: 9,9
  • Kit spring: SPR-H1003S
  • Kit spring qty: 16
  • Retainer: RET-1003-C
  • Retainer qty: 16
  • Seat Locator: SEAT-1003-CI + SEAT-1003-CE
  • Seat Locator qty: 16
  • Seat Pressure: 77 @ 40.60
  • InnSpr.ID: Single
  • OutSpr.ID: 16.30mm
  • OutSpr.OD: 23.70mm
  • InnSpr.OD: Single
Vehicle application: 17+ Honda Civic Type-R FK8 - K20C1

*Images used for representational purposes only
    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
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    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 53332875328

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    John S. Willard, Jr.
    Bozeman, US
    ★★★★★ 4
    Really nice watch!
    Color: 3675 ALL Black
    Really nice and clean looking watch. Fairly easy to adjust the watch band, with a little patience. Item description stated battery operated, but I don’t think it is as there is no indication that it has a battery in it. Other than that, really decent watch! I would have given it a five star rating if it were battery powered.
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    Reviewed in the United States on March 23, 2026
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    Ralph
    Whiting, US
    ★★★★★ 5
    Great price
    Color: 3675 Silver Grey
    The watch looks like it should cost more than the actual price. It catches people's eye and so far it keeps accurate time. Keep in mind I've only had the watch about two weeks. Of my 10 every day watches this one is the most attractive.
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    Reviewed in the United States on December 5, 2025
    B
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    Barry Benge
    Waukegan, US
    ★★★★★ 5
    Nice
    Color: 3675 Silver Grey
    Nicer than I imagined
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    Reviewed in the United States on December 14, 2025
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    John Martinez
    Grantham, US
    ★★★★★ 5
    Good attractive value
    Color: 3676 ALL Black
    This watch is a very good value imo. Looks like a quality watch. Band is adjustable and comes with a tool to assist in removing band pins. Keeping time very good. I would buy it again and will buy another in a different style
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    Reviewed in the United States on May 23, 2026
    B
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    Bert
    Phoenix, US
    ★★★★★ 1
    Men’s Watch
    Color: 3675 Silver Black
    Within two weeks of normal wear, the watch quit keeping time and the band broke. Returned for a refund.
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    Reviewed in the United States on April 26, 2026

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