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. Image is a representation. Actual product may vary

More From This Category

MANLEY Valve, Extreme Duty, Exhaust, 1.56 in. Head Dia, 0.3136 in. Stem Dia, 5.208 in. Length, For Chevrolet L83, Set of 8

MANLEY Valve, Extreme Duty, Exhaust, 1.56 in. Head Dia, 0.3136 in. Stem Dia, 5.208 in. Length, For Chevrolet L83, Set of 8

$1,037.08

MANLEY Valve, Race Master, Exhaust, 1.74 in. Head Dia, 0.3715 in. Stem Dia, 5.01 in. Length, For Chrysler, Set of 8

MANLEY Valve, Race Master, Exhaust, 1.74 in. Head Dia, 0.3715 in. Stem Dia, 5.01 in. Length, For Chrysler, Set of 8

$380.66

MANLEY Valve, Titanium, 1.625 in. Stem Dia,+.700, Each

MANLEY Valve, Titanium, 1.625 in. Stem Dia,+.700, Each

$307.70

MANLEY Valve, Race Master, Exhaust, Bead Loc, 35.5mm Head Dia, 0.313 in. Stem Dia, 4.405 in. Length, Volkswagen, Each

MANLEY Valve, Race Master, Exhaust, Bead Loc, 35.5mm Head Dia, 0.313 in. Stem Dia, 4.405 in. Length, Volkswagen, Each

$47.58

MANLEY Valve, Titanium, Exhaust, Bead Loc, 1.625 in. Head Dia, 0.3415 in. Stem Dia, 5.95 in. Length, Each

MANLEY Valve, Titanium, Exhaust, Bead Loc, 1.625 in. Head Dia, 0.3415 in. Stem Dia, 5.95 in. Length, Each

$307.70