Check the listing for details. '04/05 Honda TRX450R TRX 450R Ferrea Intake/Exhaust Valves, Spring Kit, Seals. Condition: New. Listed at 389.99 USD. Brand New Ferrea Complete Spring Kit With Titanium Retainers, Seat Locators, Valves and Valve Seals Meticulously designed! Made in the U.S.A using the highest quality materials. Honda TRX450R Years 2004 2005 This kit Includes: Race Valves Standard Size (4) Race Intake & Exhaust Springs (4) Titanium Retainers (4)Seat Locators (4)Viton Valve Stem Seals (4) (Seals may be red or blue, but are the same viton material) Intake Valve Specs: Head Diameter: 36 mmStem Diameter: 5.49 mmOverall Length: 84.6 mmTip Length: 1.15 mmReference: 20 Degree Super Flo Dish Head. Stock size. Exhaust Valve Specs:Head Diameter: 30 mmStem Diameter: 5.49 mmOverall Length: 84.27 mmTip Length: 1.15 mmReference: 22 Degree Flo Dish Head. Stock size Intake & Exhaust Spring Specs:Seat Press: 75lbsOpen Seat Press: 155lbs Max Lift: .400 (.393") Images are stock photos. Individual kits may vary slightly.