Skunk2 Racing 311-05-7350 Pro Series XP Racing Valve Spring Kit Honda B Series VTEC($386.03Value)

Description

XP features a higher seat pressure for turbocharged and extreme high RPM motors; this spring has a seat pressure of 93 pounds at 1.320 inch while keeping the coil bind height for higher lift camshafts Each Pro Series XP racing valve spring is manufactured exclusively from super-clean, chrome-silicone wire milled in Japan By using inner and outer springs mated together through a slight interference fit and with differing frequencies, Pro Series XP racing valve springs are able to prevent valve float and maintain valve train stability at engine speeds in excess of 11,000 revolutions per minute Wound by a premier North American winder, Pro Series XP racing valve springs retains its durability and strength that results in improvement to the extreme fatigue limit of the wire and enhanced resistance to load loss During development, each valve train component is tested both on the dyno and the road, including 11,000 revolutions per minute drag racing engines and 17,000 revolutions per minute superbikes