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Mr. Gasket

Mr. Gasket HEADLOCK Locking Header Bolts 2235G Fasteners, Bolts, Internal Allen/Hex Head, Stainless Steel, Chevy, Set of 12

SKU: MRG2235G

Header Fasteners
Mr. Gasket HEADLOCK Locking Header Bolts 2235G Fasteners, Bolts, Internal Allen/Hex Head, Stainless Steel, Chevy, Set of 12

Mr. Gasket

Mr. Gasket HEADLOCK Locking Header Bolts 2235G Fasteners, Bolts, Internal Allen/Hex Head, Stainless Steel, Chevy, Set of 12

SKU: MRG2235G

Header Fasteners
A$126.80
IN STOCK! Est Ship 3-7 Days days. This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.
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Description

Burning your hands on headers or the exhaust manifold when bolting them on just became a thing of the past. Mr. Gasket HEADLOCK locking header bolts simplify header installation with high-strength, 2-in-1 self-locking bolts that eliminate the need for lock washers. Designed for the performance engine builder, these innovative, patent-pending fasteners have 24 equally spaced serrations in the face of the hex head. The bolts grab and lock on to your manifold surface, virtually eliminating the chance that one might back out from vibration or because of the varying expansion rates of different metals. Mr. Gasket HEADLOCK locking header bolts are available for numerous domestic applications, including Chevrolet, Chrysler, Ford, AMC, Oldsmobile, and Pontiac. They're manufactured from stainless steel, designed to withstand tensile strengths of 150,000 pounds per square inch, and come with a bright polished finish.

Part Type

Locking Header Bolt Kit 8mm x 1.25 x 1.0mm 12pk

Data: v4.2 - Upd: 2026-10-14 09:41:00

Specifications

Product Attributes - Brand
Mr. Gasket
Product Attributes - Manufacturer's Part Number
2235G
Product Attributes - Part Type
Header Fasteners
Product Attributes - Product Line
Mr. Gasket HEADLOCK Locking Header Bolts
Product Attributes - UPC
084041040034
Product Attributes - Fastener Style
Locking bolt
Product Attributes - Thread Size
M8 x 1.25
Product Attributes - Head Style
Internal allen/Hex
Product Attributes - Underhead Length (in.)
1.000 in.
Product Attributes - Underhead Length (mm)
25.00mm
Product Attributes - Fastener Material
Stainless steel
Product Attributes - Fastener Color
Natural
Product Attributes - Quantity
Sold as a set of 12.
Product Attributes - Special Attention
Anti-seize should be used on all stainless steel fasteners.

Reference Information

Brand Name/s Mr. Gasket
StreetFX SKU mrg2235G
SFX Item ID 4982082
Supplier Item Code 4982082
Manufacturer SKU 2235G
Manufacturer UPC N/A

Compatibility

Application Data
  • Beginning Year1997
    Ending Year2004
    Engine FamilyCHEVY SMALL BLOCK GEN III/IV LS V8 GAS
    Engine Size5.7L/350
    Engine TypeV8
    MakeCHEVROLET
    UniversalNo
  • Beginning Year1999
    Ending Year2005
    Engine FamilyCHEVY SMALL BLOCK GEN III/IV LS V8 GAS
    Engine Size5.3L/325
    Engine TypeV8
    MakeCHEVROLET
    UniversalNo
  • Beginning Year1999
    Ending Year2015
    Engine FamilyCHEVY SMALL BLOCK GEN III/IV LS V8 GAS
    Engine Size4.8L/294
    Engine TypeV8
    MakeCHEVROLET
    UniversalNo
  • Beginning Year1999
    Ending Year2015
    Engine FamilyCHEVY SMALL BLOCK GEN III/IV LS V8 GAS
    Engine Size6.0L/364
    Engine TypeV8
    MakeCHEVROLET
    UniversalNo
  • Beginning Year2003
    Ending Year2004
    Engine FamilyCHEVY SMALL BLOCK GEN III/IV LS V8 GAS
    Engine Size5.3L/325
    Engine TypeV8
    MakeCHEVROLET
    UniversalNo
  • Beginning Year2006
    Ending Year2015
    Engine FamilyCHEVY SMALL BLOCK GEN III/IV LS V8 GAS
    Engine Size5.3L/325
    Engine TypeV8
    MakeCHEVROLET
    UniversalNo
  • Beginning Year2006
    Ending Year2015
    Engine FamilyCHEVY SMALL BLOCK GEN III/IV LS V8 GAS
    Engine Size7.0L/427
    Engine TypeV8
    MakeCHEVROLET
    UniversalNo
  • Beginning Year2008
    Ending Year2015
    Engine FamilyCHEVY SMALL BLOCK GEN III/IV LS V8 GAS
    Engine Size6.2L/376
    Engine TypeV8
    MakeCHEVROLET
    UniversalNo
  • Application NotesHEADLOCK LOCKING HEADER BOLTS; METRIC; 1997-UP CHEVY/GM/GMC ENGINES; 12 PC.;
    Beginning Year1997
    CID305
    Ending Year1997
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/305
    Engine TypeV8
    Engine VIN CodeM
    Liter5.0
    MakeCHEVROLET
    ModelC1500
    RegionUSA
    SubmodelBASE
  • Application NotesHEADLOCK LOCKING HEADER BOLTS; METRIC; 1997-UP CHEVY/GM/GMC ENGINES; 12 PC.;
    Beginning Year1997
    CID305
    Ending Year1998
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/305
    Engine TypeV8
    Engine VIN CodeM
    Liter5.0
    MakeCHEVROLET
    ModelC1500
    RegionUSA
    SubmodelCHEYENNE
  • Application NotesHEADLOCK LOCKING HEADER BOLTS; METRIC; 1997-UP CHEVY/GM/GMC ENGINES; 12 PC.;
    Beginning Year1997
    CID350
    Ending Year1998
    Engine FamilyChevy small block Gen I
    Engine Size5.7L/350
    Engine TypeV8
    Engine VIN CodeR
    Liter5.7
    MakeCHEVROLET
    ModelC1500
    RegionUSA
    SubmodelCHEYENNE
  • Application NotesHEADLOCK LOCKING HEADER BOLTS; METRIC; 1997-UP CHEVY/GM/GMC ENGINES; 12 PC.;
    Beginning Year1999
    CID305
    Ending Year1999
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/305
    Engine TypeV8
    Engine VIN CodeM
    Liter5.0
    MakeCHEVROLET
    ModelC1500
    RegionUSA
    SubmodelLS
  • Application NotesHEADLOCK LOCKING HEADER BOLTS; METRIC; 1997-UP CHEVY/GM/GMC ENGINES; 12 PC.;
    Beginning Year1999
    CID350
    Ending Year1999
    Engine FamilyChevy small block Gen I
    Engine Size5.7L/350
    Engine TypeV8
    Engine VIN CodeR
    Liter5.7
    MakeCHEVROLET
    ModelC1500
    RegionUSA
    SubmodelLS
  • Application NotesHEADLOCK LOCKING HEADER BOLTS; METRIC; 1997-UP CHEVY/GM/GMC ENGINES; 12 PC.;
    Beginning Year1997
    CID305
    Ending Year1998
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/305
    Engine TypeV8
    Engine VIN CodeM
    Liter5.0
    MakeCHEVROLET
    ModelC1500
    RegionUSA
    SubmodelSILVERADO
  • Application NotesHEADLOCK LOCKING HEADER BOLTS; METRIC; 1997-UP CHEVY/GM/GMC ENGINES; 12 PC.;
    Beginning Year1997
    CID350
    Ending Year1998
    Engine FamilyChevy small block Gen I
    Engine Size5.7L/350
    Engine TypeV8
    Engine VIN CodeR
    Liter5.7
    MakeCHEVROLET
    ModelC1500
    RegionUSA
    SubmodelSILVERADO
  • Application NotesHEADLOCK LOCKING HEADER BOLTS; METRIC; 1997-UP CHEVY/GM/GMC ENGINES; 12 PC.;
    Beginning Year1997
    CID305
    Ending Year1998
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/305
    Engine TypeV8
    Engine VIN CodeM
    Liter5.0
    MakeCHEVROLET
    ModelC1500
    RegionUSA
    SubmodelWT
  • Application NotesHEADLOCK LOCKING HEADER BOLTS; METRIC; 1997-UP CHEVY/GM/GMC ENGINES; 12 PC.;
    Beginning Year1997
    CID350
    Ending Year1998
    Engine FamilyChevy small block Gen I
    Engine Size5.7L/350
    Engine TypeV8
    Engine VIN CodeR
    Liter5.7
    MakeCHEVROLET
    ModelC1500
    RegionUSA
    SubmodelWT
  • Application NotesHEADLOCK LOCKING HEADER BOLTS; METRIC; 1997-UP CHEVY/GM/GMC ENGINES; 12 PC.;
    Beginning Year1999
    CID350
    Ending Year1999
    Engine FamilyChevy small block Gen I
    Engine Size5.7L/350
    Engine TypeV8
    Engine VIN CodeR
    Liter5.7
    MakeCHEVROLET
    ModelC2500
    SubmodelAUSTERA
  • Application NotesHEADLOCK LOCKING HEADER BOLTS; METRIC; 1997-UP CHEVY/GM/GMC ENGINES; 12 PC.;
    Beginning Year1997
    CID305
    Ending Year1997
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/305
    Engine TypeV8
    Engine VIN CodeM
    Liter5.0
    MakeCHEVROLET
    ModelC2500
    RegionUSA
    SubmodelBASE
  • Application NotesHEADLOCK LOCKING HEADER BOLTS; METRIC; 1997-UP CHEVY/GM/GMC ENGINES; 12 PC.;
    Beginning Year1997
    CID350
    Ending Year2000
    Engine FamilyChevy small block Gen I
    Engine Size5.7L/350
    Engine TypeV8
    Engine VIN CodeR
    Liter5.7
    MakeCHEVROLET
    ModelC2500
    RegionUSA
    SubmodelBASE
  • Application NotesHEADLOCK LOCKING HEADER BOLTS; METRIC; 1997-UP CHEVY/GM/GMC ENGINES; 12 PC.;
    Beginning Year1998
    CID350
    Ending Year1998
    Engine FamilyChevy small block Gen I
    Engine Size5.7L/350
    Engine TypeV8
    Engine VIN CodeR
    Liter5.7
    MakeCHEVROLET
    ModelC2500
    SubmodelBASE
  • Application NotesHEADLOCK LOCKING HEADER BOLTS; METRIC; 1997-UP CHEVY/GM/GMC ENGINES; 12 PC.;
    Beginning Year1997
    CID305
    Ending Year1998
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/305
    Engine TypeV8
    Engine VIN CodeM
    Liter5.0
    MakeCHEVROLET
    ModelC2500
    RegionUSA
    SubmodelCHEYENNE
  • Application NotesHEADLOCK LOCKING HEADER BOLTS; METRIC; 1997-UP CHEVY/GM/GMC ENGINES; 12 PC.;
    Beginning Year1999
    CID350
    Ending Year2000
    Engine FamilyChevy small block Gen I
    Engine Size5.7L/350
    Engine TypeV8
    Engine VIN CodeR
    Liter5.7
    MakeCHEVROLET
    ModelC2500
    RegionUSA
    SubmodelLS
  • Application NotesHEADLOCK LOCKING HEADER BOLTS; METRIC; 1997-UP CHEVY/GM/GMC ENGINES; 12 PC.;
    Beginning Year1997
    CID305
    Ending Year1998
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/305
    Engine TypeV8
    Engine VIN CodeM
    Liter5.0
    MakeCHEVROLET
    ModelC2500
    RegionUSA
    SubmodelSILVERADO
  • Application NotesHEADLOCK LOCKING HEADER BOLTS; METRIC; 1997-UP CHEVY/GM/GMC ENGINES; 12 PC.;
    Beginning Year1997
    CID350
    Ending Year1998
    Engine FamilyChevy small block Gen I
    Engine Size5.7L/350
    Engine TypeV8
    Engine VIN CodeR
    Liter5.7
    MakeCHEVROLET
    ModelC2500
    RegionUSA
    SubmodelSILVERADO

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