SKU: 28202886501

Skunk2 Honda K20C1/K20C4 Ultra Valve Springs and Spring Base Kit (313-05-9100)

Sale price$149.60 Regular price$166.22
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 1 - Aug 6

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Description

Skunk2 Honda K20C1/K20C4 Ultra Valve Springs and Spring Base Kit (313-05-9100)The Skunk2 Ultra Valve Springs and Spring Base Kit for Honda K20C1 K20C4 engines are designed for high performance applications that require upgraded valve springs to handle increased valve lift and higher engine speeds. The kit features specially engineered, ultra lightweight valve springs that are made from super clean chrome silicone wire, shot peened, and heat treated to maximize fatigue resistance and spring life. The valve springs' unique design

The Skunk2 Ultra Valve Springs and Spring Base Kit for Honda K20C1 / K20C4 engines are designed for high-performance applications that require upgraded valve springs to handle increased valve lift and higher engine speeds. The kit features specially engineered, ultra-lightweight valve springs that are made from super-clean chrome silicone wire, shot-peened, and heat-treated to maximize fatigue resistance and spring life.

The valve springs' unique design allows for increased lift and duration while maintaining valve control at high RPMs, resulting in increased power and torque across the entire power band. Additionally, the kit includes hardened spring bases that are precision machined from chromoly steel for maximum durability and reliability.

The Skunk2 Ultra Valve Springs and Spring Base Kit is a must-have upgrade for any high-performance K20C1 / K20C4 engine build. It is designed to be a direct drop-in replacement for the OEM valve springs and requires no additional modifications for installation.

Features:

  • Made from super-clean chrome silicone wire
  • Shot-peened and heat-treated for maximum fatigue resistance and spring life
  • Lightweight design allows for increased lift and duration
  • Hardened spring bases for maximum durability and reliability
  • Direct drop-in replacement for OEM valve springs
  • Designed for high-performance applications
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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: 28202886501

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4.4 ★★★★★
Based on 23 reviews
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Verified Purchase
Ruben Acevedo
Cuba, US
★★★★★ 5
Right item for right money
Works pretty good, and the best is for a very good price
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 23, 2026
A
Verified Purchase
Amazon Customer
New York, US
★★★★★ 5
Good deal
Works well… Easy install… Can’t be the price
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Reviewed in the United States on February 2, 2026
S
Saneii2
Fort Morgan, US
★★★★★ 5
Comparable to OEM and works on the first crank
This starter shape already mimics the original, meaning it should fit, and that it did! Installation was easy after removing the battery tray to get to it. Then remove the bolts from the starter and the connection then install and it took about 35 minutes to get it installed. We cracked it up and it started on the first start. Fit and functional is where the largest points are, and these are what makes this a good reliable starter. For the price it’s a great alternative to the dealer parts. So far the car is starting with no problems or issues.its construction is made of durable metal as it endures heat and cold cycles and to withstand rust and corrosion. It’s in par with the OEM and about the same weight.
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Reviewed in the United States on January 15, 2026
O
Verified Purchase
Over the Road
Lowell, US
★★★★★ 5
Better than expected
I bought this thinking it was just like any other cabin air filter that fit my truck. It fits my truck perfectly. The Surprise was that it has a carbon filter side and is very well made. I can recommend this to you, and I will buy it again when it is time for a replacement.
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Reviewed in the United States on April 25, 2026
C
Verified Purchase
Colorado
Waukegan, US
★★★★★ 5
Fit well
Seemed to fit in very well, was easy to install, and doesn't smell. I could see the charcoal beads on one side, which should help to pull out any contaminates; much better than the oem paper filters. Good value for the money.
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Reviewed in the United States on April 1, 2026

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