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The Skunk2 Pro XP Valve Spring Set is built for high-performance K-Series VTEC engines, offering the increased seat pressure needed for turbocharged and extreme high-RPM builds. With a seat pressure of 100 lbs @ 1.600", these dual springs are designed to handle the demands of high-lift camshafts and extended high-RPM operation—tested to perform beyond 11,000 RPM in real-world racing and dyno environments.
Manufactured from super-clean chrome-silicone wire milled in Japan and wound by a premier North American spring winder, each spring undergoes rigorous quality processes including eddy-current inspection, heat treatment, shot peening, chemical polishing, and nitriding. The result is exceptional fatigue strength, minimal load loss, and outstanding valvetrain control at high speeds.
Compatible with both K20 and K24 engines, as well as F20C and F22C when using the required Skunk2 Spring Bases, these springs are ideal for professional-level race engines operating under extreme conditions.
Key Features:
Designed for turbocharged and high-RPM K-Series VTEC engines
100 lbs seat pressure @ 1.600” for maximum spring control
Dual spring setup with interference fit for vibration damping
Engineered for use with extreme-lift camshafts
High-RPM capability exceeding 11,000 RPM
Manufactured from Japanese-milled chrome-silicone wire
100% eddy-current inspected, heat-treated, shot-peened, and nitrided
Tested in drag racing engines and on the street
In-house developed and validated by Skunk2
Technical Specifications:
Seat Pressure: 100 lbs @ 1.600"
Open Pressure: 255 lbs @ 1.100"
Coil Bind Height: 0.890"
Maximum Lift: 0.680"
Important Installation Notes:
Use Skunk2 Spring Bases (P/N 312-05-0010) to install in F20C/F22C or convert single spring K-Series heads.
When using Skunk2 Titanium Retainers on 2004+ engines, pre-2004 keepers must be used. Pre-2004 keepers lack laser etching along the top edge. Incorrect combinations of retainers and locks may result in engine failure.
Vehicle Fitment:
Honda K20
Honda K20A
Honda K20Z
Honda K24
Honda K24A
Honda K24Z
What's Included:
(1) Complete Set of Pro XP Dual Valve Springs
We are open Monday-Friday from 8am-6pm EST
Yes, customers located in and around the the Piedmont area are welcome to pick up their items from our retail location during normal business hours. Our address is:
Elite Race Fab
1514 Holbrook St Suite D-F
Greensboro, NC 27403
Elite Race Fab offers free ground shipping & handling to our retail customers within the lower 48 contiguous United States on most orders totaling $159.99 and higher, when the item being purchased is not a Freight/LTL item! Orders under $159.99 will be subject to a nominal $13.99 Flat shipping charge. Some exceptions and/or exclusions apply, in those scenarios you will be advised of any additional charges in the item details/description stating shipping exclussions/freight shipping required etc.
In regards to expedited and international shipping each order will need to be quoted on a case by case basis. You can obtain a quote two ways:
- From your shopping cart select "Request a Quote" prior to placing your order. We will review your proposed order and promptly respond with shipping estimates.
- Complete your order ahead of time indicating either expedited or international shipping during the checkout process. We will promptly determine shipping rates for your order and email you for approval and additional payment.
-Give us a call and we can ensure your item is shipped right then, to ensure you have it in time for your deadline.
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As far as price matching, we dont want to write a check we cant cash, but we certainly want to earn your business. With that said, we will go above and beyond to match our competitor's pricing when it is needed. Simply email us, click the live contact button, or give us a call and be sure to have a link to our competitor's site and please factor in any shipping and handling their website will be charging. We will then ensure you get the lowest price, and either match or beat their pricing.
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