Skunk2 Racing Ultra Series Valves 310-05-9535

Name: Skunk2 Racing Ultra Series Valves
Brand: Skunk 2
SKU: SK2-310-05-9535
Price: 427.55 USD
Rating: 0 (0 reviews)

Write the First Review

Part Number: SK2-310-05-9535

$427.55

Skunk2 Racing Ultra Series Valves

Valvetrain, Ultra Series 35mm/28mm Standard Compression Valve Set 02-12 Honda Civic Si K-Series
See More Specifications | Check the Fit

Skunk2 Racing Ultra Series Valves 310-05-9535

SK2-310-05-9535

Not Yet Reviewed

Part Number: SK2-310-05-9535

Estimated Ship Date: Nov 17, 2026

$427.55

Overview

Applications

Recommended Parts

Q&A

Estimated Ship Date: Nov 17, 2026 Would you rather pick it up?

Overview

Brand:

Skunk 2

Manufacturer's Part Number:

310-05-9535

Part Type:

Valves

Product Line:

Skunk2 Racing Ultra Series Valves

Summit Racing Part Number:

SK2-310-05-9535

UPC:

873265006724

Valve Position:

Intake/Exhaust

Intake Valve Head Diameter (in.):

1.378 in.

Exhaust Valve Head Diameter (in.):

1.181 in.

Intake Valve Head Diameter (mm):

35.000 mm

Exhaust Valve Head Diameter (mm):

30.000mm

Intake Valve Stem Diameter (in.):

0.215 in.

Exhaust Valve Stem Diameter (in.):

0.214 in.

Intake Valve Stem Diameter (mm):

5.48mm

Exhaust Valve Stem Diameter (mm):

5.45mm

Intake Overall Valve Length (in.):

4.291 in.

Exhaust Overall Valve Length (in.):

4.275 in.

Intake Overall Valve Length (mm):

109.000mm

Exhaust Overall Valve Length (mm):

108.600mm

Undercut Stem:

Swirl-Polished:

Valve Material:

HNV-3 martensitic steel/EV8 stainless steel

Lock Groove Quantity:

1-groove

Valve Head Style:

Dished

Quantity:

Sold as a set.

Skunk2 Racing Ultra Series Valves

Skunk2 Racing Ultra Series valves are offered in standard and high-compression versions. They are manufactured from HNV-3 martensitic steel (intake) and EV8 austenitic steel (exhaust) one-piece forgings. The characteristics of the austenitic nickel based alloy enable high resistance to oxidation and corrosion and are designed for engines that output extremely high temperatures.

Each valve is heat-treated using a proprietary process for extraordinary strength and durability, and chromium nitride coated using the physical vapor deposition (PVD) process. This coating significantly improves wear and heat resistance, as well as the friction coefficient between the valve's stem and valve guide; a necessity for engine components that demand resistance to high heat level environments. Other valves may appear similar, but only Skunk2 Racing Ultra Series valves feature specially designed valve head profiles to optimize airflow. Choose a set for your vehicle.

Features:

* Stainless steel alloy construction
* 3 to 10g lighter than stock
* Ensures optimum sealing, airflow, and stability
* Race and dyno tested