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Manley Ford 289/302/351W Street Flo Exhaust Valves 1.850 in Dia for use with Rail Type Rockers

SKU: MAN10778-8

Valves

MAN Street Flo Valves...

Manley Ford 289/302/351W Street Flo Exhaust Valves 1.850 in Dia for use with Rail Type Rockers

SKU: MAN10778-8

Valves

MAN Street Flo Valves...

A$321.93
IN STOCK! Est Ship 4-7 days. In stock at 2 locations (7 available)

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Description

Exclusive Manley Performance flash sale discount at StreetFX!

Talk about timing! This is a limited offer while stocks last on various Manley Performance part numbers. There's never been a better time to buy your Manley Performance upgrades, so what are you waiting for?!

This item is currently on sale!

Same-day payment required to secure promotional price. Promotions may end early or be extended based on stock levels or other factors.

Intake Valve - Street Flo - 1.850 in Head - 0.342 in Valve Stem - 5.075 in Long - Stainless - Rail Type Rockers - Small Block Ford - Set of 8

Valve - Intake

Manley Street Series valves are the ideal choice for enthusiasts looking to boost the performance of a stock or mildly modified street engine.

Additional Information

Manley Valve - Intake, Valve-SBF S/F 1.850

Part Type

Engine Intake Valve

Data: v4.2 - Upd: 2026-11-09 03:43:57

Features

  • Chrome Stems and Hard Tips: These valves feature chrome stems and hard tips for increased durability and wear resistance, making them suitable for demanding applications.
  • High-Quality Stainless Steel: Our Street Series valves, available as XH-424 for exhaust and NK-841 for intake, are crafted from top-grade stainless steel, ensuring durability and longevity.
  • Swirl Polished and Fully Machined: The under head areas are meticulously swirl polished, and the combustion faces are fully machined, enhancing airflow and combustion efficiency.
  • Variety of Shapes: Choose from the Street Master (Straight Stem) or Street Flo shapes, allowing you to customize your valve selection based on your specific needs.

Data: v2 - Desc: v4.2 - Upd: 2026-11-08 05:26:23

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Manley Performance, Manley
StreetFX SKU man10778-8
SFX Item ID 4061252
Accounting SKU man-10778-8
Manufacturer SKU 10778-8
Manufacturer UPC 807298055435
Alternative References 10778-8, MAN-10778-8

Valves, Intake, Stainless Steel, 1.850 in. Diameter, .342 in. Stem, 5.075 in. Length, Ford, Set of 8

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.

Product Attributes
BrandManley
Manufacturer's Part Number10778-8
Part TypeValves
Product LineManley Street Flo Valves
UPC807298055435
Valve PositionIntake
Intake Valve Head Diameter (in.)1.850 in.
Intake Valve Head Diameter (mm)46.990mm
Intake Valve Stem Diameter (in.)0.342 in.
Intake Valve Stem Diameter (mm)8.69mm
Intake Overall Valve Length (in.)5.075 in.
Intake Overall Valve Length (mm)128.905mm
Undercut StemYes
Swirl-PolishedYes
Valve Tip Length (in.)0.395 in.
Valve Tip Length (mm)10.033mm
Valve MaterialNK-841 stainless steel
Lock Groove Quantity1-groove
Lock Groove StyleConventional
Approximate Weight (g)105
Valve Head Style7 degree dish
Valve Seat Width (in.)0.080 in.
QuantitySold as a set of 8.

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