Best Locking Header Bolts

Michel | 07-05-2026

Searching for the best Best Locking Header Bolts from top brands like Stage 8,ProForm, but unsure where to start? We’re here to help. After extensive research, we’ve selected the top Best Locking Header Bolts and also created a buying guide to assist you in choosing the right one.

We evaluated and tested numerous top-rated products to compile this list of standout Best Locking Header Bolts. Our top recommendation is Stage 8 Best Locking Header Bolts because of its unmatched performance, quality, and value. However, we have more great options below if you want to explore further. Check out our buying guide as well for expert tips on selecting the ideal Best Locking Header Bolts to suit your needs and budget. With our research backing you, finding your perfect match will be easy.

Editor's Choice
Stage 8 8911 3/4
Stage 8 8911 3/4" Locking Header Bolt Kit for GM Small Block
Premium Pick
Stage 8 - 8916 MOPAR 4.7, 5.7, 6.1 Liter Hemi V8 Header Bolt Kit - 8mm 1.25x25mm Bolts 6 Point DHH -
Stage 8 - 8916 MOPAR 4.7, 5.7, 6.1 Liter Hemi V8 Header Bolt Kit - 8mm 1.25x25mm Bolts 6 Point DHH -
Budget Pick
Proform 66753 3/8 x 1
Proform 66753 3/8 x 1" Wedge Locking Header Bolt, Pack of 12

Top 10 Best Locking Header Bolts

We researched and compared the top products in the Best Locking Header Bolts category to provide you with these recommendations.

1. Stage 8 8911 3/4" Locking Header Bolt Kit for GM Small Block

Stage 8 8911 3/4
9.8

Stage 8

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  • Grade 8 bolts will not stretch when hot
  • Duplex nickel finish for a superior look and corrosion resistance
  • Double hex head includes 3/16 inches recessed allen head for easy installation
  • Removable and reusable
  • Can visually inspect; no need to put a wrench on to check tightness

2. Stage 8 - 8916 MOPAR 4.7, 5.7, 6.1 Liter Hemi V8 Header Bolt Kit - 8mm 1.25x25mm Bolts 6 Point DHH -

Stage 8 - 8916 MOPAR 4.7, 5.7, 6.1 Liter Hemi V8 Header Bolt Kit - 8mm 1.25x25mm Bolts 6 Point DHH -
9.5

Stage 8

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  • Grade 8 bolts will not stretch when hot
  • Duplex nickel finish for a superior look and corrosion resistance
  • Double hex head includes 3/16 inches recessed allen head for easy installation
  • Removable and reusable
  • Can visually inspect; no need to put a wrench on to check tightness

3. Proform 66753 3/8 x 1" Wedge Locking Header Bolt, Pack of 12

Proform 66753 3/8 x 1
9.1

Proform

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  • Package Dimensions: 22.7 H x 3.9 L x 11.0 W (centimetres)
  • Package Weight: 0.301 kilograms
  • Fit type: Vehicle Specific
  • Country of Origin : China

4. Stage 8 8911A 1" Locking Header Bolt Kit for GM Small Block

Stage 8 8911A 1
8.9

Stage 8

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  • Grade 8 bolts will not stretch when hot
  • Duplex nickel finish for a superior look and corrosion resistance
  • Double hex head includes 3/16 inches recessed allen head for easy installation
  • Removable and reusable
  • Can visually inspect; no need to put a wrench on to check tightness

5. Stage 8 8912A Locking Header Bolt Kit with 1" Bolts

Stage 8 8912A Locking Header Bolt Kit with 1
8.7

Stage 8

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  • Grade 8 bolts will not stretch when hot
  • Duplex nickel finish for a superior look and corrosion resistance
  • Double hex head includes 3/16 inches recessed allen head for easy installation
  • Removable and reusable
  • Can visually inspect; no need to put a wrench on to check tightness

6. Proform 66752 3/8" x 3/4 Long Wedge Locking Header Bolt, Pack of 16

Proform 66752 3/8
8.5

Proform

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  • Product Type :Bolts
  • Package Dimensions :2.032 Cm L X12.065 Cm W X15.875 Cm H
  • Package Quantity :1
  • Package Weight :4.0Lbs

7. Stage 8 8913A 1" Locking Header Bolt kit for Ford Small Block

Stage 8 8913A 1
8.3

Stage 8

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  • Grade 8 bolts will not stretch when hot
  • Duplex nickel finish for a superior look and corrosion resistance
  • Double hex head includes 3/16 inches recessed allen head for easy installation
  • Removable and reusable
  • Can visually inspect; no need to put a wrench on to check tightness
  • Fit type: Vehicle Specific

8. PROFORM 66756 Header Bolts 1" L X 3/8"

  • Part number: 66756
  • Package Weight: 1.0 pounds
  • Fit type: Vehicle Specific
  • Oem equivalent part number: 66756

9. Stage 8 8913 3/4" Locking Header Bolt kit for Ford Small Block

Stage 8 8913 3/4
7.9

Stage 8

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  • Grade 8 bolts will not stretch when hot
  • Duplex nickel finish for a superior look and corrosion resistance
  • Double hex head includes 3/16 inches recessed allen head for easy installation
  • Removable and reusable
  • Can visually inspect; no need to put a wrench on to check tightness

10. Mr. Gasket 2235G Headlock Locking Header Bolt, (Set of 12)

Mr. Gasket 2235G Headlock Locking Header Bolt, (Set of 12)
7.7

Mr. Gasket

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  • Serrated teeth grip header flange surface providing a locking action
  • Thread-lock patch prevents header bolt torque loss and provides positive thread seal
  • Combination hex/socket head design for easy installation
  • Made from high-grade stainless steel to resist rust and corrosion
  • Material specification Grade 8, 150, 000 PSI tensile strength
1

Michel

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