Manley Street Flo valves are excellent-quality valves at an affordable price. All are made from stainless steel (intakes are NK-841; exhausts are XH-424) with chrome stems and hardened valve tips. Street Flo series valves are fully machined and swirl polished, and both the materials used and the heat-treating process are superior to those of the Budget replacement series valves. They're available in a variety of head diameters, with either straight stems or undercut "Pro Flo" stems for increased flow. Order the set that's compatible with your vehicle and engine application.

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MANLEY Valve, Pro Flo, Intake, 2.165 in. Head Dia, 0.3133 in. Stem Dia, 4.9 in. Length, For Chevrolet L92, Set of 8

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Sonnax 3-2 Manual Downshift Valve, GM, 4T60-E, 4T65-E '94-Later, Each

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MANLEY Valve, Titanium, Exhaust, 1.6 in. Head Dia, 0.3415 in. Stem Dia, 5.16 in. Height, Each

MANLEY Valve, Titanium, Exhaust, 1.6 in. Head Dia, 0.3415 in. Stem Dia, 5.16 in. Height, Each

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MANLEY Valve, Race Flo, Intake, 2.225 in. Head Dia, 0.3125 in. Stem Dia, 5.3 in. Length, Gen II, Each

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MANLEY Valve, Extreme Duty, Exhaust, 1.625 in. Head Dia, 0.3415 in. Stem Dia, 5.265 in. Length, SBC, Set of 8

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MANLEY Valve, Extreme/Severe Duty, Intake, 2.2 in. Head Dia, 0.311 in. Stem Dia, Hollow Stem, 5.75 in. Length, Gen II, Set of 8

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