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Manley Small Block Chevrolet 1.500 Budget Performance Exhaust Valves

SKU: MAN10577-8

Valves

MAN Budget Valves

Manley Small Block Chevrolet 1.500 Budget Performance Exhaust Valves

SKU: MAN10577-8

Valves

MAN Budget Valves

A$207.69
Available from MFR. This item is available from the manufacturer's distribution centre. The dispatch timeframe shown is an estimate based on historical order processing and release times for this part. This item is not held in our own warehouse, and actual dispatch timing may vary depending on manufacturer workload and logistics at the time of ordering.
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Description

Manley Performance Series valves are engineered to meet the demands of enthusiasts seeking top-tier performance.

Part Type

Engine Exhaust Valve

Data: v4.2 - Upd: 2026-09-29 08:00:36

Features

  • Chrome Stems and Hard Tips: These valves boast chrome stems and hard tips, ensuring exceptional durability, even under extreme conditions.
  • Premium Stainless Steel: The Performance Series valves are available as XH-422 for exhaust and NK-840 for intake, constructed from high-quality stainless steel for optimal performance.
  • Swirl Polished and Fully Machined: The under head areas are expertly swirl polished, and the combustion faces are fully machined, optimizing airflow and combustion efficiency for maximum power.
  • Variety of s: Tailor your valve selection to your engine's needs with options for stock or .100 longer s.

Specifications

Product Attributes - Brand
Manley
Product Attributes - Manufacturer's Part Number
10577-8
Product Attributes - Part Type
Valves
Product Attributes - Product Line
Manley Budget Series Performance Valves
Product Attributes - UPC
807298047072
Product Attributes - Valve Position
Exhaust
Product Attributes - Exhaust Valve Head Diameter (in.)
1.500 in.
Product Attributes - Exhaust Valve Head Diameter (mm)
38.100mm
Product Attributes - Exhaust Valve Stem Diameter (in.)
0.341 in.
Product Attributes - Exhaust Valve Stem Diameter (mm)
8.66mm
Product Attributes - Exhaust Overall Valve Length (in.)
4.911 in.
Product Attributes - Exhaust Overall Valve Length (mm)
124.739mm
Product Attributes - Undercut Stem
No
Product Attributes - Swirl-Polished
Yes
Product Attributes - Valve Tip Length (in.)
0.250 in.
Product Attributes - Valve Tip Length (mm)
6.350mm
Product Attributes - Valve Material
XH-422 stainless steel
Product Attributes - Lock Groove Quantity
1-groove
Product Attributes - Lock Groove Style
Conventional
Product Attributes - Approximate Weight (g)
96
Product Attributes - Valve Head Style
10 degree dish
Product Attributes - Valve Seat Width (in.)
0.100 in.
Product Attributes - Quantity
Sold as a set of 8.

Reference Information

Brand Name/s Manley Performance
StreetFX SKU man10577-8
SFX Item ID 4060853
Supplier Item Code 4060853
Manufacturer SKU 10577-8
Manufacturer UPC 807298047072

Compatibility

Application Data
  • Valve FitmentSearch by engine
    MakeCHEVROLET
    Beginning Year1957
    Ending Year1967
    Engine TypeV8
    Engine Size4.6L/283
    Engine FamilyChevy small block Gen I
    Valve Installed LengthStock
  • Valve FitmentSearch by engine
    MakeCHEVROLET
    Beginning Year1976
    Ending Year1999
    Engine TypeV8
    Engine Size5.0L/305
    Engine FamilyChevy small block Gen I
    Valve Installed LengthStock

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