Found It Cheaper? Use Our Atlus Price Guarantee!

Supertech Dual Valve Spring Kit for Honda F20 & K20 Engines - SPRK-H1021D-ST

$576.57 $720.50
-20%
Low in stock

This product will be available soon, but you can pre-order now to get on the list before others!

US Based Support - In Florida

30 Days Satisfaction Guarantee

Price Match

Easy Financing

Supertech Dual Valve Spring Kit for Honda F20 & K20 Engines - SPRK-H1021D-ST
$576.57 $720.50
$576.57 $720.50

Fits Honda F20 and K20 engines. The Supertech Dual Valve Spring Kit (SPRK-H1021D-ST) is designed for high-performance applications where increased camshaft lift and higher RPM limits demand superior valvetrain control. By utilizing a precision-wound dual-spring design, this kit provides the necessary seat and open pressure to prevent valve float, ensuring reliable valvetrain harmonics even under extreme racing conditions.

Supertech valve springs are manufactured from high-quality chrome silicon vanadium steel alloy for improved fatigue resistance and long-term durability. This kit is an essential upgrade for engine builders looking to maintain valvetrain stability in forced induction or high-lift naturally aspirated Honda builds.

  • Specifically engineered for Honda F20 and K20 valvetrains
  • Dual-spring configuration for maximum RPM stability and harmonic damping
  • Constructed from high-tensile chrome silicon vanadium steel
  • Direct replacement for high-performance builds requiring increased spring rates
  • Manufacturer Part Number: SPRK-H1021D-ST

Authencity Guaranteed

We only sell authentic products from verified brand partners and retail partners globally.

  • Visa
  • Mastercard
  • PayPal
  • American Express
  • Discover
  • Apple Pay
  • Google Pay

Can’t Find the Part You Need?

Our catalog represents only a portion of the automotive products available through our supplier network. If you cannot find a specific part, brand, or application on our website, submit a request below, and our team will help source it for you.

Please include as much information as possible, such as your vehicle's year, make, model, trim, engine, desired brand, or part number, to help us quickly identify the correct product.

Email is invalid

Image alt