Manley Performance Valves, Exhaust, Stainless Steel, 1.600 In. Diameter, .341 In. Stem
Manley Performance Valves, Exhaust, Stainless Steel, 1.600 In. Diameter, .341 In. Stem
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In-stock orders are processed within 48 hours; transit time is additional.
International orders include export processing and customs clearance. Duties, taxes and brokerage are extra; final freight charges may change after remeasurement.
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Need help with a return? Request authorization within 30 days of delivery for eligible unused, uninstalled items. See details for exclusions and applicable fees.
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Request return authorization (RMA) within 30 days of delivery for eligible items. Keep items unused and uninstalled, with original packaging and accessories. Electronics, liquids, special orders and other categories are excluded.
Email sales@frsport.com with RETURN and your order number in the subject to request an RMA. Please wait for return authorization before sending your item back.
Wrong part/size or change of mind: a 20% return processing fee applies, plus applicable shipping costs.
Original shipping is non-refundable. For orders shipped free, the actual outbound shipping cost is deducted from the refund. Return shipping is prepaid by the customer.
After payment capture, cancellations and refunds generally incur a 5% processing fee, except for our error, confirmed defects or confirmed carrier loss. The 5% and 20% fees do not stack; only the greater applicable fee applies. Store credit waives the 5% fee, but applicable return fees remain.
Missing, incorrect or transit-damaged items: report within 3 business days of receipt with photos of the product and packaging.
For defective items, contact us for help with the manufacturer's warranty process. The manufacturer decides the claim.
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.
- Valve Head Diameter (in):1.600 in.
- Valve Head Diameter (mm):40.640mm
- Valve Stem Diameter (in):0.341 in.
- Valve Stem Diameter (mm):8.66mm
- Overall Valve Length (in):4.911 in.
- Overall Valve Length (mm):124.739mm
- Undercut Stem:Yes
- Swirl-Polished:Yes
- Valve Tip Length (in):0.250 in.
- Valve Tip Length (mm):6.350mm
- Valve Material:XH-424 stainless steel
- Lock Groove Quantity:1-groove
- Lock Groove Style:Conventional
- Approximate Weight (g):101
- Valve Head Style:10 degree dish
- Valve Seat Width (in):0.100 in.
- Quantity:Sold as a set of 8.
