Skunk2 Pro Series XP Valve Spring Set; Seat Pressure 100 Lbs At 1.600 in; Open Pressure 255 Lbs At 1.100 in; Coil Bind 0.890 in; Max Lift 0.680 in; Set of 16; ACURA RSX


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Part #: 311-05-7380
Notes: Pro Series XP Valve Spring Set
Seat Pressure 100 Lbs At 1.600 in
Open Pressure 255 Lbs At 1.100 in
Coil Bind 0.890 in
Max Lift 0.680 in
Set of 16
MSRP: $367.99
Your Price: $301.97
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Specs

Coil Bind Height (in) 0.890
Installed Height (in) 1.600
Installed Pressure (lbs.) 100
Open Height (in) 1.100
Open Pressure (lbs.) 255

All Fitments

ACURA
Year Model SubModel Cylinders Liter Aspiration Eng Desg. Fuel Notes
2002 - 2005 RSX ALL ALL ALL ALL ALL ALL
2006 - 2006 RSX BASE L4 2.0 ALL ALL ALL
2006 - 2006 RSX TYPE-S L4 2.0 ALL ALL ALL
2004 - 2008 TSX ALL ALL ALL ALL ALL ALL
HONDA
Year Model SubModel Cylinders Liter Aspiration Eng Desg. Fuel Notes
2003 - 2004 ACCORD ALL L4 2.4 ALL ALL ALL
2005 - 2005 ACCORD DX L4 2.4 ALL ALL ALL
2005 - 2005 ACCORD SE L4 2.4 ALL ALL ALL
2005 - 2007 ACCORD EX L4 2.4 ALL ALL ALL
2005 - 2007 ACCORD LX L4 2.4 ALL ALL ALL
2006 - 2006 ACCORD LX SPECIAL EDITION L4 2.4 ALL ALL ALL
2006 - 2007 ACCORD VALUE PACKAGE L4 2.4 ALL ALL ALL
2007 - 2007 ACCORD SPECIAL EDITION L4 2.4 ALL ALL ALL
2002 - 2005 CIVIC SI L4 2.0 ALL ALL ALL Hatchback;
2006 - 2006 CIVIC SI L4 2.0 ALL ALL ALL Coupe;
2007 - 2011 CIVIC SI L4 2.0 ALL ALL ALL
2008 - 2008 CIVIC MUGEN SI L4 2.0 ALL ALL ALL
2002 - 2009 CR-V ALL ALL ALL ALL ALL ALL
2003 - 2011 ELEMENT ALL ALL ALL ALL ALL ALL

Product Description

Skunk2 is proud to introduce its Pro Series XP (Extra Pressure) Racing Valve Spring Kits for Honda’s B-series VTEC and K-series i-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 100lbs at 1.600” for the K-Series and 93lbs at 1.320” for the B-Series engines 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 Honda’s B-series VTEC and K-series i-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.

Skunk2 designs, develops, and tests its entire valvetrain lineup in-house to ensure superior quality and maximum performance gains. During development, each valvetrain component is tested both on the dyno and the road, including 11,000 rpm drag racing engines and 17,000 rpm superbikes. Manufactured from the best materials available, Skunk2 valvetrain components provide exceptional performance, reliability, and quality. These components remain standard-issue on each Skunk2 vehicle that we build and support.

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