Skunk2 Alpha Series Valve Spring and Titanium Retainer Kit - Honda H22A VTEC - 344-05-1360Alpha Valve Springs Manufactured exclusively from super clean, chrome silicone wire milled in Japan, Skunk2's Alpha Valve Springs for Honda's H series 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