Stage 8 Header Bolt Kit 6pt 8mm-1.25 x 25mm Locking Fasteners — Fits Mopar Gen III Hemi

SKU: BJHT_8916
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Stage 8

Stage 8 engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Stage 8 lineup with fast shipping and expert fitment support — order with confidence.

Eliminate Exhaust Leaks Permanently

Stop dealing with loose header bolts and exhaust leaks. The Stage 8 Header Bolt Kit is the industry standard for high-performance engines, specifically engineered for the Mopar Gen III Hemi. These locking fasteners prevent thermal expansion and vibration from backing out your bolts, ensuring your headers stay sealed tight under extreme heat and pressure.

Technical Specifications

  • Thread Size: 8mm-1.25
  • Length: 25mm
  • Head Style: 6-Point Hex
  • Material: Nickel-Plated Steel
  • Quantity: 17-Piece Set

Each kit utilizes Stage 8’s patented locking technology, featuring a unique bridge and clip system that mechanically locks the bolt head in place. You will never need to re-torque your header bolts again, saving you time and preventing gasket failure. Whether you are building a street machine or a dedicated track car, these bolts provide the reliability your engine demands. Trust GGCRACING for premium engine hardware.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Stage 8

Stage 8 engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Stage 8 lineup with fast shipping and expert fitment support — order with confidence.

Eliminate Exhaust Leaks Permanently

Stop dealing with loose header bolts and exhaust leaks. The Stage 8 Header Bolt Kit is the industry standard for high-performance engines, specifically engineered for the Mopar Gen III Hemi. These locking fasteners prevent thermal expansion and vibration from backing out your bolts, ensuring your headers stay sealed tight under extreme heat and pressure.

Technical Specifications

  • Thread Size: 8mm-1.25
  • Length: 25mm
  • Head Style: 6-Point Hex
  • Material: Nickel-Plated Steel
  • Quantity: 17-Piece Set

Each kit utilizes Stage 8’s patented locking technology, featuring a unique bridge and clip system that mechanically locks the bolt head in place. You will never need to re-torque your header bolts again, saving you time and preventing gasket failure. Whether you are building a street machine or a dedicated track car, these bolts provide the reliability your engine demands. Trust GGCRACING for premium engine hardware.

Product Details

Product Description

About Stage 8

Stage 8 engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Stage 8 lineup with fast shipping and expert fitment support — order with confidence.

Eliminate Exhaust Leaks Permanently

Stop dealing with loose header bolts and exhaust leaks. The Stage 8 Header Bolt Kit is the industry standard for high-performance engines, specifically engineered for the Mopar Gen III Hemi. These locking fasteners prevent thermal expansion and vibration from backing out your bolts, ensuring your headers stay sealed tight under extreme heat and pressure.

Technical Specifications

  • Thread Size: 8mm-1.25
  • Length: 25mm
  • Head Style: 6-Point Hex
  • Material: Nickel-Plated Steel
  • Quantity: 17-Piece Set

Each kit utilizes Stage 8’s patented locking technology, featuring a unique bridge and clip system that mechanically locks the bolt head in place. You will never need to re-torque your header bolts again, saving you time and preventing gasket failure. Whether you are building a street machine or a dedicated track car, these bolts provide the reliability your engine demands. Trust GGCRACING for premium engine hardware.

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