SKUNK2 RACING H-SERIES ALPHA VALVE SPRING AND TITANIUM RETAINER KIT
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Delivery and Shipping
Delivery and Shipping
Standard Shipping (UK):
Expect delivery in 2–3 working days. We may upgrade your order to Express at no extra charge depending on cart value, location, or items ordered.
Express Shipping (UK):
Sent via premium courier (DHL, UPS, Parcelforce, or FedEx). Most orders placed before 1PM (Mon–Fri) are dispatched the same day for next working day delivery (not guaranteed). Orders after 1PM are shipped next working day.
A working day is Monday–Friday, excluding UK public holidays.
Couriers may deliver on weekends at their discretion, but this is outside our standard policy.
Tracking details will be provided when your order ships.
Stock Information
Stock Information
Please check the stock status before ordering.
A green status means the item is in stock and has been recently verified.
If a product is out of stock or showing “contact us for ETA” just get in touch with us and we’ll give you an accurate restock estimate.
We aim to keep as many products in stock as possible, but due to low demand or special-order items, some products are only available to order in upon request.
Easy Returns
Easy Returns
RHD Performance accept returns on new, unopened products within 30 days of the day you receive your order. To organise your return and get an RMA (Return Merchandise Authoriation) number, please contact us here.
This does not affect your statutory rights.
Alpha Valve Springs Manufactured exclusively from super-clean, chrome-silicone wire milled in Japan, Skunk2?s Alpha Valve Springs for Honda?s F, H-series VTEC engines are a product of the company?s years of racing and engine building experiences. By using inner and outer springs mated together through a slight interference fit and with differing frequencies, Alpha Valve Springs are able to prevent valve float and maintain valvetrain stability at engine speeds in excess of 10,000 rpm. Alpha Retainers Alpha Titanium Retainers are designed to significantly reduce valvetrain mass, resulting in more horsepower and improved valvetrain stability. Similar to Skunk2?s already popular Pro Series Titanium Retainers, Alpha Titanium Retainers feature radius-cut edges for additional rocker arm clearance and reduced weight, strategically positioned lightening grooves, and reduced overall heights for better valve seal clearance and even further weight reduction. Alpha Titanium Retainers are manufactured using the latest 3D CAD (Computer Aided Design) and FEA (Finite Element Analysis) to ensure that each is optimized for strength as well as for reduced weight. Skunk2 engineers then test and prove their designs on the engine dyno as well as the race track. Once approved for manufacturing, only medical-grade titanium that?s been ultrasonically inspected and certified is used. Following CNC machining, each retainer is then individually inspected to ensure proper hole diameter, taper, and that each are free from machining defects to ensure proper installed valve spring heights and pressures. Finally, each retainer is serialized for your protection, including valuable information, like material batch specifics as well as production and inspection dates.
Payment & Security
Payment methods
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