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Holley

Holley LS Valve Cover Bolt Kits 561-133 Fasteners, EFI, Tall Bolts, Polished, Aluminum, Hex Head, 6mm x 1.0 Thread, Hardware Included, Chevy, 4.8-7.0L, Each

SKU: HLY561-133

Valve Cover Fasteners
Holley LS Valve Cover Bolt Kits 561-133 Fasteners, EFI, Tall Bolts, Polished, Aluminum, Hex Head, 6mm x 1.0 Thread, Hardware Included, Chevy, 4.8-7.0L, Each

Holley

Holley LS Valve Cover Bolt Kits 561-133 Fasteners, EFI, Tall Bolts, Polished, Aluminum, Hex Head, 6mm x 1.0 Thread, Hardware Included, Chevy, 4.8-7.0L, Each

SKU: HLY561-133

Valve Cover Fasteners
A$26.81
BACKORDER This item will be special ordered in for you. Contact us prior to purchase if you require an ETA.
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Description

Holley LS valve cover bolt kits are hardware assemblies developed specifically for Holley tall LS valve covers. Available as a single service component or a full set of eight, each bolt assembly features a polished valve cover bolt (M6 x 1.0 threads), aluminum spacer, and OE-style grommet. If you're dealing with lost or damaged fasteners for your tall LS valve covers, don't fret—order Holley LS valve cover bolt kits.

Part Type

Valve Cover Fasteners

Data: v4.2 - Upd: 2026-10-16 04:07:38

Specifications

Product Attributes - Brand
Holley
Product Attributes - Manufacturer's Part Number
561-133
Product Attributes - Part Type
Valve Cover Fasteners
Product Attributes - Product Line
Holley LS Valve Cover Bolt Kits
Product Attributes - UPC
090127047569
Product Attributes - Valve Cover Fastener Style
Bolt
Product Attributes - Fastener Color
Polished
Product Attributes - Fastener Material
Aluminum
Product Attributes - Fastener Head Style
Hex head
Product Attributes - Thread Size
M6 x 1.0
Product Attributes - Washers Included
Yes
Product Attributes - Hold-Down Tabs Included
No
Product Attributes - Quantity
Sold individually.
Product Attributes - Notes
For use with tall Holley LS valve covers only.

Reference Information

Brand Name/s Holley
StreetFX SKU hly561-133
SFX Item ID 4784677
Supplier Item Code 4784677
Manufacturer SKU 561-133
Manufacturer UPC 90127047569
Alternative References HOL561-133, 6mm, 4.8-7.0L

Compatibility

Application Data
  • UniversalNo
    MakeCHEVROLET
    Beginning Year1997
    Ending Year2007
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size5.7L/350
    Valve Cover ConstructionCast
    Application NotesFits models with center bolt valve covers.
  • UniversalNo
    MakeCHEVROLET
    Beginning Year1999
    Ending Year2017
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size4.8L/294
    Valve Cover ConstructionCast
  • UniversalNo
    MakeCHEVROLET
    Beginning Year1999
    Ending Year2019
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size5.3L/325
    Valve Cover ConstructionCast
  • UniversalNo
    MakeCHEVROLET
    Beginning Year1999
    Ending Year2019
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size6.0L/364
    Valve Cover ConstructionCast
  • UniversalNo
    MakeCHEVROLET
    Beginning Year2003
    Ending Year2019
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size5.3L/325
    Valve Cover ConstructionCast
  • UniversalNo
    MakeCHEVROLET
    Beginning Year2006
    Ending Year2015
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size7.0L/427
    Valve Cover ConstructionCast
  • UniversalNo
    MakeCHEVROLET
    Beginning Year2008
    Ending Year2019
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size6.2L/376
    Valve Cover ConstructionCast

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