Stage 8 Header Bolt Kit 12pt 5/16-18 x 1in Locking Fasteners — Fits Small Block Mopar

SKU: BJHT_8935
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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.

Ultimate Exhaust Security for Mopar Engines

Stop dealing with loose header bolts and exhaust leaks. The Stage 8 Header Bolt Kit (8935) is the industry standard for high-performance Small Block Mopar applications. Engineered to withstand extreme thermal cycling and intense engine vibration, these locking fasteners ensure your headers stay tight under the most demanding racing conditions.

Precision Engineering

This kit features 12-point head bolts measuring 5/16-18 x 1 inch, crafted from high-strength steel with a durable nickel-plated finish to resist corrosion. The patented locking design utilizes a unique retainer system that prevents the bolt from backing out, effectively eliminating the need for constant retorquing.

  • Specifically designed for Small Block Mopar engines
  • Includes 12 locking bolts and necessary hardware
  • 12-point head for easier access in tight engine bays
  • Nickel-plated steel for superior heat resistance
  • Patented locking technology prevents thermal expansion loosening

Whether you are building a street machine or a dedicated track car, these bolts provide the peace of mind that your exhaust system will remain sealed and secure. Don't let a simple fastener failure ruin your engine's performance. Upgrade your hardware today with this premium Stage 8 solution available at GGCRACING.

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.

Ultimate Exhaust Security for Mopar Engines

Stop dealing with loose header bolts and exhaust leaks. The Stage 8 Header Bolt Kit (8935) is the industry standard for high-performance Small Block Mopar applications. Engineered to withstand extreme thermal cycling and intense engine vibration, these locking fasteners ensure your headers stay tight under the most demanding racing conditions.

Precision Engineering

This kit features 12-point head bolts measuring 5/16-18 x 1 inch, crafted from high-strength steel with a durable nickel-plated finish to resist corrosion. The patented locking design utilizes a unique retainer system that prevents the bolt from backing out, effectively eliminating the need for constant retorquing.

  • Specifically designed for Small Block Mopar engines
  • Includes 12 locking bolts and necessary hardware
  • 12-point head for easier access in tight engine bays
  • Nickel-plated steel for superior heat resistance
  • Patented locking technology prevents thermal expansion loosening

Whether you are building a street machine or a dedicated track car, these bolts provide the peace of mind that your exhaust system will remain sealed and secure. Don't let a simple fastener failure ruin your engine's performance. Upgrade your hardware today with this premium Stage 8 solution available at GGCRACING.

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.

Ultimate Exhaust Security for Mopar Engines

Stop dealing with loose header bolts and exhaust leaks. The Stage 8 Header Bolt Kit (8935) is the industry standard for high-performance Small Block Mopar applications. Engineered to withstand extreme thermal cycling and intense engine vibration, these locking fasteners ensure your headers stay tight under the most demanding racing conditions.

Precision Engineering

This kit features 12-point head bolts measuring 5/16-18 x 1 inch, crafted from high-strength steel with a durable nickel-plated finish to resist corrosion. The patented locking design utilizes a unique retainer system that prevents the bolt from backing out, effectively eliminating the need for constant retorquing.

  • Specifically designed for Small Block Mopar engines
  • Includes 12 locking bolts and necessary hardware
  • 12-point head for easier access in tight engine bays
  • Nickel-plated steel for superior heat resistance
  • Patented locking technology prevents thermal expansion loosening

Whether you are building a street machine or a dedicated track car, these bolts provide the peace of mind that your exhaust system will remain sealed and secure. Don't let a simple fastener failure ruin your engine's performance. Upgrade your hardware today with this premium Stage 8 solution available at GGCRACING.

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