ARP Main Bolt Kits | Multiple MGB Fitments (206-5002)

The ARP Main Bolt Kit for multiple MGB fitments is a high-performance fastener set designed to replace OEM main bolts in classic MG B engines. Crafted from forged 8740 chromoly steel, these bolts are rated at 180,000 psi, ensuring exceptional strength and durability under demanding conditions. The kit features rolled threads after heat treatment, which significantly enhances fatigue strength—up to 2,000 percent better than standard fasteners. With a reduced wrenching head and large underhead radius, these bolts facilitate easier installation and reliable clamping force, making them a preferred choice for professional engine builders and enthusiasts seeking premium quality components.

Designed specifically for MGB models, these main bolts are suitable for engines requiring precise and robust fasteners. They serve as direct replacements for OEM bolts, providing improved performance and longevity. The kit is ideal for rebuilds, high-performance applications, or daily driving where engine reliability is critical. Installation involves standard bolt replacement procedures, and the set includes all necessary fasteners to ensure a secure fit. These ARP main bolts are engineered to meet the rigorous demands of performance engines, delivering consistent clamping and peace of mind during operation.