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. Image is a representation. Actual product may vary

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MANLEY Valve, Severe Duty, Intake, 2.19 in. Head Dia, 0.3415 in. Stem Dia, 5.344 in. Length, Each

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AFR Exhaust Valve, BBC 18° 11/32 Victory Titanium 1.800 X 5.935 O.A.L. With Hardened Tip Race, Set

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MANLEY Valve, Race Master, Exhaust, 1.94 in. Head Dia, 0.3415 in. Stem Dia, 5.422 in. Length, BBC, Set of 8

MANLEY Valve, Race Master, Exhaust, 1.94 in. Head Dia, 0.3415 in. Stem Dia, 5.422 in. Length, BBC, Set of 8

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AFR Intake Valve, BBC 24° Stainless Steel 2.350 x 5.500 O.A.L. 11/32 Stem Race, Set

AFR Intake Valve, BBC 24° Stainless Steel 2.350 x 5.500 O.A.L. 11/32 Stem Race, Set

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MANLEY Valve, Pro Flo, Intake, 2.065 in. Head Dia, 0.372 in. Stem Dia, 5.218 in. Length, BBC, Set of 8

MANLEY Valve, Pro Flo, Intake, 2.065 in. Head Dia, 0.372 in. Stem Dia, 5.218 in. Length, BBC, Set of 8

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