Auto Racing Products Head Stud Kit 12-Point Chromoly — Fits GM W-Series 409 BBC

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Superior Clamping Force for Your GM W-Series 409

When building a high-performance GM W-Series 409 engine, cylinder head sealing is critical. This Auto Racing Products (ARP) Head Stud Kit is engineered to provide the consistent, high-tensile clamping force required to keep your heads securely fastened under extreme combustion pressures. Crafted from premium 8740 chromoly steel, these studs are heat-treated to ensure structural integrity and resistance to fatigue.

Why Choose ARP Fasteners?

• High-Strength Material: Manufactured from 8740 chromoly steel for superior durability compared to OEM bolts.
• Precision Engineering: Rolled threads provide significantly higher fatigue strength than cut threads.
• 12-Point Nuts: Includes high-quality 12-point nuts for improved torque distribution and easier access in tight engine bays.
• Black Oxide Finish: Corrosion-resistant coating ensures long-term reliability in harsh racing environments.

This kit is specifically designed for the unique geometry of the GM W-Series 409 Big Block, ensuring a perfect fit without the need for modifications. Whether you are building a street-strip machine or a dedicated track car, these studs prevent head gasket failure and maintain optimal compression. The use of studs also allows for more accurate torque readings, as the stud does not twist in the block during tightening. Trust your engine build to the industry leader in fastener technology. Find all your high-performance engine components at GGCRACING.