ARP 8740 Main Stud Kit 12-Point Chromoly Black Oxide for 1977-1991 BMW 320i/M3

ARP 8740 Main Stud Kit 12-Point Chromoly Black Oxide for 1977-1991 BMW 320i/M3

The ARP 8740 Main Stud Kit is an essential component for enhancing the performance and reliability of your 1977-1991 BMW 320i or M3. Designed with precision engineering, these studs are made from high-strength 8740 chromoly steel, ensuring superior durability and resistance to stretching under high-stress conditions. This makes them ideal for both street and race applications where engine performance is paramount.

One of the primary advantages of using the ARP main stud kit over traditional bolts is the enhanced clamping force. The 12-point design enables a more even and consistent application of torque across the entire circumference, reducing the risk of warping or damage to the engine block. This secure fit not only promotes long-term reliability but also helps maintain proper alignment of the main cap, ultimately leading to improved engine efficiency and power output.

FITMENT: This main stud kit is specifically engineered to fit 1977-1991 BMW 320i and M3 models. Compatible with the factory specifications, it ensures a seamless installation process without requiring any modifications to the engine block or main cap assemblies.

Key Features & Benefits

• Manufactured from high-strength 8740 chromoly steel for unmatched durability.
• 12-point design allows for optimal torque application and clamping force.
• Pre-stretched to ensure consistent performance and reliability under extreme conditions.
• Black oxide finish enhances corrosion resistance and adds a sleek appearance.
• Designed specifically for BMW 320i and M3 models from 1977 to 1991 for a perfect fit.

Shipping. Free on every order, US only. Orders arrive in 2–4 days.

Returns. 60-day free returns, except in extreme cases.

Support. Our team is available 24/7 for fitment mismatches or any other reason.

Warranty. Full manufacturer guarantee.