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Engines and Components› Camshafts and Valvetrain

Supertech

Supertech Honda F20/K20 Dual Valve Spring Kit

$720.50 $576.57 Save $143.93

SKU: S00P SPRK-H1021D-ST

In Stock
In Stock
Ships by Jun 9
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Supertech SPRK-H1021D Dual Valve Spring Kit eliminates valve float with a dual-spring design producing 95 lbs of seat pressure at 40.4mm installed height and 261 lbs of open pressure at 12mm. It is wound from Super Clean Chrome Silicon Vanadium Steel Alloy and includes 16 dual valve springs, 16 titanium retainers, and 16 seat locators.

Fitment

Fitment Guaranteed

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on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandSupertech
Part NumberS00P SPRK-H1021D-ST

Videos

My Biggest K24 Modification So Far - Dual Valve Springs Install!

My Biggest K24 Modification So Far - Dual Valve Springs Install!
How To Replace Valve Springs & Retainers On A Honda K-series

How To Replace Valve Springs & Retainers On A Honda K-series

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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