✨ Get 20% OFF your first order. ✨

Your Shopping Bag

Your bag is empty

Subtotal $0.00
Shipping Calculated at checkout
Continue Shopping

Best Seller 4 Piston High Performance Street Valve Spring Kit (k-series) Massive 80% Savings [vefEaGBU]

$49.99 $159.99 -69%

Best Seller 4 Piston High Performance Street Valve Spring Kit (k-series) Massive 80% Savings [vefEaGBU] 4 Piston Racing is thrilled to present a game-changing valve spring kit designed for the modern Honda K-Series performance engines. This premium kit stands out in the market with its superi

Secure Shopping

100% Safe Guarantee

Free Shipping

On orders over $30

Money-Back

30-Day Guarantee

Best Seller 4 Piston High Performance Street Valve Spring Kit (k-series) Massive 80% Savings [vefEaGBU]

4 Piston Racing is thrilled to present a game-changing valve spring kit designed for the modern Honda K-Series performance engines. This premium kit stands out in the market with its superior design and affordability, ensuring that your engine can reach new heights without compromising on quality. The kit is meticulously crafted to cater to the RPM range and camshaft size requirements of today's high-performance engines, addressing the shortcomings of older K-Series valve springs.

Advanced Features and Specifications

The valve spring kit is constructed from high purity large diameter wire, providing exceptional strength and durability. This design allows for the use of any popular camshafts on the market while ensuring that the engine can operate at higher RPMs without the risk of valve float. The retainers are made from premium Titanium, manufactured with precision on our Mazak SYNCREX Swiss lathe, ensuring tight tolerances for optimal performance. The kit includes 16 dual valve springs, 16 spring seat locators, and 16 Titanium retainers, providing a comprehensive solution for your engine's valve train needs. The seat pressure is set at 110 lbs., with a maximum lift of .650" (16.5mm), offering superior control and longevity.

Performance and Practicality

This valve spring kit is not just a tool for racing enthusiasts; it is a practical upgrade for daily drivers and anyone looking to enhance the performance of their K-Series engine. The higher seat pressure ensures that your valve train will last longer, providing peace of mind and reliability. The kit is designed to be compatible with any 7-degree valve lock (keeper), including OEM, Ferrea, Supertech, or 4P options, offering versatility and convenience. With this kit, you can expect improved engine performance, enhanced RPM capabilities, and a longer-lasting valvetrain, making it an essential investment for any K-Series owner. Upgrade your engine today and experience the difference that only 4 Piston Racing can deliver.

What Our Customers Say

December 30, 2025

Absolutely no complaints!

A great product that is very, very, very handy.

- Ceinwen C..

December 30, 2025

Absolutely no complaints!

A very useful tool that I use each and every day.

- Wynne P..

December 30, 2025

Absolutely no complaints!

This is a very impressive and a very, very fine tool.

- Rhianedd D..

Write a Review

You Might Also Like

Discover more great products from our collection.

5-Panel Room Divider Fabric

5-Panel Room Divider Fabric

(151)
$19.99 $63.99 -69%
BEARING 22209, FERRI ZMT ROTOR

BEARING 22209, FERRI ZMT ROTOR

(530)
$33.99 $108.99 -69%
196632 Drag Link

196632 Drag Link

(53)
$26.99 $86.99 -69%
T50038-X11D

T50038-X11D

(31)
$18.99 $60.99 -69%
EBC S8 Brake Pad and Rotor Kit

EBC S8 Brake Pad and Rotor Kit

(441)
$67.99 $217.99 -69%
Racma Ring 1

Racma Ring 1

(777)
$32.99 $105.99 -69%

Copyright 2025 © mappa-mercia.org

VISA
PayPal
Stripe
Mastercard
CASH ON DELIVERY