Manley Severe Duty series performance valves are a great choice for your high performance or race engine. All valves are made from stainless steel (intakes are NK-844; exhausts are XH-428) with chrome stems and hardened valve tips. Severe Duty series valves are made of superior materials, are fully machined and swirl polished, and are available with either undercut "Pro Flo" stems or straight stems.

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MANLEY Valve, Race Master, Exhaust, 1.625 in. Head Dia., 0.3715 in. Stem Dia., 4.97 in. Length, For Chrysler SB, Set of 8

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MANLEY Valve, Race Master, Exhaust, 34.0 mm Head Dia., 7 mm Stem Dia., 99 mm Length, For Toyota 1FZ-FE, Each

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MANLEY Valve, Titanium, Intake, Bead Loc, 2.25 in. Head Dia., 0.3415 in. Stem Dia., 5.5 in. Length, Set of 8

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MANLEY Valve, Titanium, Intake, Bead Loc, 2.2 in. Head Dia., 0.311 in. Stem Dia., 6.25 in. Length, Each

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MANLEY Valve, Race Flo, Intake, 32.0 mm Head Dia., 6 mm Stem Dia., 99.60 mm Length, Each

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MANLEY Valve, Extreme/Severe Duty, Intake, 2.225 in. Head Dia., 0.3133 in. Stem Dia., 5.6 in. Length, Gen II, Set of 8

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