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Engine - Valve Train - Valve Springs

70 products
Powersport Superstore is your go-to source for Engine - Valve Train - Valve Springs and related parts. Shop our unbeatable selection of Valve Springs with top-tier service, fast shipping, and great prices.
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Vehicle Fitment Combos Show all Vehicle Fitment Combos
Regular price $661.11
Sale price $661.11
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Conversion kit uses Kibblewhite racing springs combined with a lightweight valve spring retainer that houses a standard 9.5 mm hardened steel shim. Rocker arm rides directly on the 9.5mm shim surfa...
13% Off
Regular price $65.69
Sale price $65.69
Regular price $75.57
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Purpose-built racing valve springs from the only dedicated racing spring manufacturer in the country. Made from the highest quality Kobe spring wire. Utilizes all of the same features and processes...
10% Off
Regular price $635.36
Sale price $635.36
Regular price $705.95
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Intake: .445in. max valve lift, 1.350in. installed height, 50 lb. seat pressure, 162 lb. open pressure; Exhaust: .445in. max valve lift, 1.240in. installed height, 44 lb.seat pressure, 153 lb. open...
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Vehicle Fitment:2019-2021 Yamaha YZ250F
Regular price $12.25
Sale price $12.25
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Developed from an ultra high strength alloy. Heat treated to increase the durability. Machined to precise specifications.Vehicle Fitment:2011-2012 KTM 350 SX-F 2012 KTM 350 XC-F
Regular price $174.77
Sale price $174.77
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Single coil reduces the risk of valve float. Suitable for high performance applications. Accommodates camshaft lift to 0.585in. Includes: Springs, Top & Bottom Collars, Keepers, Shims.Vehicle F...
10% Off
Regular price $356.36
Sale price $356.36
Regular price $395.95
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Works well with cams up to .650in. lift. Manufactured from ultra clean high silicon Kobe alloy wire then micro shot peened and nitrided. CNC machined 9deg. locks. High performance conical single wi...
Regular price $17.80
Sale price $17.80
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Developed from an ultra high strength alloy. Heat treated to increase the durability. Machined to precise specifications.Vehicle Fitment:2003-2005 Honda CRF150F 2003-2009 Honda CRF230F 2012-2017 Ho...
Regular price $15.65
Sale price $15.65
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Forged one-piece construction to help with weight reduction & improved flow. Performance valves receive a swirl polish, smooth stem treatment, and are made of 21-2n/suh35ht stainless steel. Spr...
Regular price $124.81
Sale price $124.81
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Type: Intake / Exhaust. Retainer Material: H.T. Steel. Valve Lift: 0.415in. Installed Height: 1.375in. Seat Pressure: 129#. Open Pressure: 272#. @ Lift: 0.415in. Note: All components are the qualit...
Regular price $129.79
Sale price $129.79
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Type: Intake / Exhaust. Retainer Material: H.T. Steel. Valve Lift: 0.415in. Installed Height: 1.375in. Seat Pressure: 129#. Open Pressure: 272#. @ Lift: 0.415in. Note: All components are the qualit...
1% Off
Regular price $148.02
Sale price $148.02
Regular price $148.95
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Max lift kits are designed for maximum performance. Feature interference-wound, double-chrome silicone springs; heat-treated steel base washers. Available in a complete set for one engine. Include ...
Regular price $142.97
Sale price $142.97
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Seat Pressure 160-170lb. *Includes two sets of base washers to accommodate both stack exhaust guide styles; Includes valve seals Kits are designed for maximum performance. Features interference-wo...
18% Off
Regular price $202.99
Sale price $202.99
Regular price $247.95
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Retainer Material: Titanium. Valve Lift: 0.600in. Installed Height: 1.855in. Seat Pressure: 150#. Open Pressure: 347#. @ Lift: 0.600in. Max lift kits are designed for maximum performance. Feature ...
25% Off
Regular price $164.93
Sale price $164.93
Regular price $220.95
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Intake/ exhaust: 1.320in. installed height, 46 lb. seat pressure, 155 lb. open pressure, 0.445in. lift. Designed to out-perform and outlast the factory valve springs. Kit features lightweight, hig...
0% Off
Regular price $228.42
Sale price $228.42
Regular price $228.95
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Type: Intake / Exhaust. Retainer Material: H.T. Steel. Valve Lift: 0.655in. Installed Height: 1.855in. Seat Pressure: 185#. Open Pressure: 450#. @ Lift: 0.655in. Max lift kits are designed for max...
10% Off
Regular price $323.81
Sale price $323.81
Regular price $360.95
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Type: Intake / Exhaust. Retainer Material: Titanium. Valve Lift: 0.655in. Installed Height: 1.865in. Seat Pressure: 190#. Open Pressure: 465#. @ Lift: 0.655in. Max lift kits are designed for maxim...
0% Off
Regular price $207.83
Sale price $207.83
Regular price $207.95
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Intake: 1.340in. installed height, 50 lb. seat pressure, 162 lb. open pressure, 0.440in. lift;. Exhaust: 1.360in. installed height, 220 lb. open pressure, 0.405in. lift. Designed to out-perform an...

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