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This ARP main stud kit is made for Big Block Ford FE series 390–428 engines and provides a heavy-duty solution for securing main caps. Main studs deliver improved clamping reliability over standard bolts in high-stress applications, supporting block integrity under increased loads. The kit is intended for builders and engine tuners who require robust main-bearing retention for street or competition use.
ARP BB Ford 390-428c.i.d. FE Series Main Stud Kit
