• ARP Main Stud Kits | Multiple Ford Fitments (155-5501)
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ARP Main Stud Kits | Multiple Ford Fitments (155-5501)

ARP Main Stud Kits | Multiple Ford Fitments (155-5501)

155-5501

Out of stock

$134.99 USD
$148.06 USD $134.99 USD
kADDITIONAL DISCOUNTS APPLIED AT CHECKOUT Sold out

The ARP Main Stud Kits are high-performance fasteners designed to secure engine main caps and prevent cap walk or fretting during operation. Crafted from 8740 chromoly steel and heat-treated in-house to achieve a tensile strength of 190,000 psi, these studs provide exceptional durability and strength under demanding conditions. The precision J-form threads are rolled after heat treatment, resulting in significantly stronger threads compared to standard fasteners. The kits include hardened, parallel-ground washers and high-quality nuts, ensuring a reliable and secure fit. These main stud kits are engineered to enhance engine integrity, especially in high-performance or forced induction applications, by maintaining proper cap alignment and reducing the risk of thread damage.

Designed for a variety of Ford applications, these ARP main stud kits are suitable for engines requiring a robust fastening solution. They are compatible with multiple Ford models and fitments, making them ideal for street, track, or racing builds where engine reliability is critical. Installation involves replacing the stock main cap bolts with these high-strength studs, providing a bolt-on upgrade that improves overall engine stability. The kit includes all necessary components for a complete installation, ensuring a straightforward upgrade process. These studs are perfect for engine builders seeking to maximize strength and longevity in demanding automotive environments.

Overview

Main Stud Kit by ARP

ARP main stud kits help eliminate main cap walk/fretting and protect the threads in your engine block. They include studs made from 8740 chromoly steel and heat-treated in-house to 190,000 psi tensile-strength rating. The precision J-form threads are rolled after heat-treat for much stronger threads than the competition. Kits come complete with hardened parallel-ground washers and high-quality nuts. Add confidence in the strength of your engine build with the ARP main stud kit designed for your application.

Features

  • Main Bolt Style: 4-bolt
  • Fastener Style: Stud
  • Fastener Nut Style: Standard hex
  • Works with Windage Tray: No
  • Fastener Tensile Strength (psi): 190,000 psi
  • Nuts Included: Yes
  • Washers Included: Yes

Benefits

  • Help eliminate main cap walk/fretting
  • Protect the threads in your engine block
  • Made from 8740 chromoly steel
  • Heat-treated in-house to 190,000 psi tensile-strength rating

Applications

  • 1968 - 1973 Ford Thunderbird
  • 1969 - 1971 Ford Mustang
  • 1969 - 1970 Ford Mustang Boss 429
  • 1969 - 1973 Ford/Mercury full-size
  • 1969 - 1973 Ford/Mercury intermediate
  • 1971 Mercury Cougar
  • 1977 - 1991 Ford medium-duty F-Series
  • Ford F600/F700/F800
  • 1977 - 1991 Ford B-Series
  • 1979 - 1990 Ford C-Series
  • Ford C900
  • 1977 - c.1991 Ford L-Series "Louisville Line"
  • Ford L900
  • 1972 - 1976 Ford Thunderbird
  • 1974 - 1976 Mercury Cougar
  • 1972 - 1978 Ford/Mercury full-size
  • 1973 - 1976 Ford/Mercury intermediate
  • 1973 - 1997 Ford F-Series
  • 1975 - 1996 Ford E-Series

What's In The Box?

  • 18 - Studs

Warranty

  • Manufacturers Standard Warranty
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