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Skunk2 Pro Series Honda/Acura B-Series VTEC XP Valve Spring Set (Dual Springs)

Skunk2 Pro Series Honda/Acura B-Series VTEC XP Valve Spring Set (Dual Springs)

311-05-7350

In stock

$386.03 USD
$406.35 USD $386.03 USD
ADDITIONAL DISCOUNTS APPLIED AT CHECKOUT Sold out

The Skunk2 Pro Series Honda/Acura B-Series VTEC XP Valve Spring Set is a high-performance racing component designed to enhance valvetrain stability at extreme engine speeds. Constructed from super-clean, chrome-silicone wire milled in Japan, these dual valve springs are race-proven and engineered for demanding applications. Featuring a seat pressure of 93 lbs at 1.320 inches, they are optimized for turbocharged and high-RPM motors, allowing for higher lift camshafts without coil bind. The springs utilize inner and outer springs with a slight interference fit and differing frequencies to prevent valve float, ensuring reliable operation beyond 11,000 rpm. Their manufacturing process includes heat treatment, shot peening, chemical polishing, and nitriding, resulting in a lightweight yet durable component capable of handling extreme conditions and high-lift camshafts.

Designed specifically for Honda B-series VTEC engines, these springs are suitable for engines from 1988 to 2005 and are ideal for racing, high-performance street use, or any application demanding high RPM stability. They serve as a direct upgrade for stock springs, providing increased seat pressure and valvetrain control. The kit includes a set of dual springs engineered to withstand prolonged high-RPM operation, making them suitable for championship-level racing and extreme high-performance builds. Installation is a bolt-on upgrade, compatible with B-series engines, and intended for enthusiasts seeking maximum valvetrain reliability and performance at high engine speeds.

Overview

Skunk2 is proud to introduce its Pro Series XP (Extra Pressure) Racing Valve Spring Kits for the Honda B-series VTEC engines. Each kit includes Skunk2's high-quality race-proven dual valve springs that are the result of nearly two decades of racing and engine building experience. 'XP' features a higher seat pressure for turbocharged and extreme high RPM motors. This spring has a seat pressure of 93lbs @ 1.320 in. 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 valvetrain stability at engine speeds in excess of 11,000 rpm. Wound by a premier North American winder, our 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. Pro Series XP Racing Valve Springs are engineered to handle the demands of extreme-lift camshafts operating at prolonged, high-rpm use at championship-level racing. Skunk2's Pro Series XP Racing Valve Spring's for the Honda's B-series VTEC engines are simply the best on the market. Pro Series XP Racing Valve Springs have been tested at speeds exceeding 11,000 rpm on our engine dyno, street, and the race track. Our superior, Japanese-milled, super-clean chrome silicone wire is 100-percent eddy-current inspected prior to coiling. Next, they are heat-treated, shot-peened, and chemically polished for strength and durability. A special nitriding process concludes Skunk2's rigorous manufacturing process. The end result is a lightweight valve spring that safely accommodates high-lift camshafts and features superior resistance to load loss, even under extreme operating conditions.

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