Bourne HPP

Bourne HPP Inlet Valve Spring Honda F20C

In stock

SKU: BHP-HF-IN-SP

No reviews

£122.36

Option

Naturally Aspirated Boosted

Product details

SKU BHP-HF-IN-SP
Model F20C
Make Bourne HPP and Honda After-Market

Do you have questions about this product?

Ask an expert!

Bourne HPP F20c High Performance Inlet Valve Spring Set

Optimize the breathing of your S2000 engine with this premium performance inlet valve spring set, developed by Bourne HPP. Designed to support high-performance cylinder head configurations, these springs offer a critical upgrade for F20C builds pushing beyond factory power limits, ensuring precise valve control during the intake stroke.

Engineered for versatility, these inlet springs are rated to handle between 350-700 HP in boosted applications and 200-350 HP in naturally aspirated setups. Despite their enhanced capabilities, they are designed for standard fitment, allowing for a straightforward installation using the original platform shims and retainer setups.

Key Specifications

Fitment: F20C (Inlet Side)
Material: EN 10270-2 SiCr (Silicon Chrome)
Wire Diameter: 4.10mm
Outside Diameter: 29.90mm
Inside Diameter (Min): 21.70mm
Free Length: 49.61mm
Solid Length: 25.83mm

Performance Pedigree

These springs are manufactured from high-grade Silicon Chrome alloy (SiCr), selected for its superior fatigue resistance and ability to maintain consistent pressure over time. Whether you are building a high-compression N/A track car or a turbocharged street monster, these springs provide the necessary seat pressure to prevent valve float and ensure maximum airflow efficiency at the F20C's legendary high RPMs.

Kit Contents

8x Bourne HPP Inlet Valve Springs

Installation Note: Please note that these are sold in a pack of 8, which covers the inlet side of a standard F-Series cylinder head. When installing, it is critical to verify installed heights and check for coil bind to ensure proper clearance. We recommend professional installation and measurement.

We appreciate your business and are committed to providing you with exceptional service and timely delivery. Please review the shipping information below for your order.

Order Processing Time:

Orders are usually processed within 24-48 hours after the order has been placed.
Custom or special order items may take longer to process, typically 3-5 business days.

Shipping Methods:

Standard Shipping (3-7 business days)
Expedited Shipping (2-3 business days)
Express Shipping (1-2 business days)

Packaging:

Rest assured that all items will be securely and safely packaged to prevent any damage during transit. Fragile or high-value parts will be packaged with additional protective materials, such as bubble wrap or foam padding.

Shipping Rates:

Shipping rates vary based on the size, weight, and destination of the package. You can view the estimated shipping costs for your order during the checkout process before placing your order.

Order Tracking:

Once your order has been shipped, you will receive an email with the tracking number and carrier information. You can also track your order status by logging into your account.

International Shipping:

We ship worldwide! Please note that international shipping rates and delivery times may vary based on destination. Customers are responsible for any customs fees, import taxes, or additional charges that may apply.