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, Severe Duty, Intake, 2.3 in. Head Dia, 0.3415 in. Stem Dia, 5.244 in. Length, BBC, Each

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MANLEY Valve, Race Master, Exhaust, Bead Loc, 32mm Head Dia, 0.2345 in. Stem Dia, 4.274 Length, For Ford 5.0L, Set of 8

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MANLEY Valve, Race Master, Exhaust, 33.0 mm Head Dia, 7 mm Stem Dia, 98.0 mm Length, For Toyota 1FZ-FE, Each

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MANLEY Valve, Race Flo, Intake, Bead Loc, 2.14 in. Head Dia, 0.3125 in. Stem Dia, 5.135 in. Length, For Chrysler HEMI, Set of 8

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MANLEY Valve, Titanium, Intake, 2.3 in. Head Dia, 0.3415 in. Stem Dia, 5.35 in. Length, Each

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