Ford Main Stud Kit - Inline 6

The ARP Ford Main Stud Kit for Inline 6 (ARP 152-5401) is a high-performance upgrade designed for Ford inline-six engines. This kit is ideal for engine builders and performance enthusiasts who require enhanced clamping force and structural integrity, particularly in applications with elevated boost levels or high compression ratios.

Constructed from chromoly steel, this main stud kit replaces factory main bolts with high-strength studs and hex nuts. The black oxide finish provides excellent corrosion resistance, making it suitable for both street and harsh environments. This upgrade minimizes the risk of main bearing cap separation under load, ensuring reliability during extended engine duty cycles.

Engine builders and operators running modified fuel systems or high-load scenarios will benefit significantly from this main stud kit. It is designed to maintain OEM compatibility while offering superior aftermarket durability. Whether for classic Ford builds or off-road applications, this kit provides the necessary structural foundation for enhanced engine performance.