• ARP Main Bolt Kits | Multiple Ford Fitments (155-5202)
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ARP Main Bolt Kits | Multiple Ford Fitments (155-5202)

ARP Main Bolt Kits | Multiple Ford Fitments (155-5202)

155-5202

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$72.76 USD
$79.81 USD $72.76 USD
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The ARP Main Bolt Kit is a high-performance fastener set designed to replace OEM main bolts in various Ford engines. Crafted from forged 8740 chromoly steel, these bolts are rated at 180,000 psi, ensuring exceptional strength and durability under demanding conditions. Featuring a reduced wrenching head, large underhead radius, and rolled threads, they provide enhanced reliability and fatigue resistance. The heat-treated rolled threads offer approximately 2,000 percent better fatigue strength than standard fasteners, making them ideal for high-stress engine applications. These bolts are engineered to meet the rigorous standards of professional engine builders, delivering consistent performance and peace of mind during engine assembly or rebuilds.

Designed for multiple Ford fitments, these ARP main bolts are suitable for engines requiring high-strength fasteners. They are a direct replacement for OEM bolts, ensuring proper fitment and ease of installation. The kit is intended for use in performance and racing applications, where reliability and strength are critical. Installation involves standard bolt replacement procedures, and the kit includes all necessary bolts for a complete upgrade. Compatible with a range of Ford engines, these bolts are suitable for street, track, and high-performance builds that demand premium fasteners for long-lasting engine integrity.

Overview

Main Bolt Kit by ARP

ARP High Performance Series main bolts are rated at 180,000 psi and a popular premium replacement for OEM fasteners. Designed to meet the exacting standards and demands of professional engine builders, ARP bolts are forged from 8740 chromoly steel and feature a reduced wrenching head, large underhead radius, and rolled threads for the utmost in reliability. The threads are rolled after heat-treating which gives them about 2,000 percent better fatigue strength than most main bolts that are threaded prior to heat-treating. Hardened parallel-ground washers are included with each kit.

Features

  • Main Bolt Style: 2-bolt
  • Fastener Style: Bolt
  • Head Style: Hex
  • Works with Windage Tray: No
  • Fastener Tensile Strength (psi): 180,000 psi
  • Nuts Included: No
  • Washers Included: Yes

Benefits

  • Designed to meet the exacting standards and demands of professional engine builders
  • Forged from 8740 chromoly steel and feature a reduced wrenching head
  • Large underhead radius
  • Rolled threads for the utmost in reliability

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?

  • 10 - Bolts

Warranty

  • Manufacturers Standard Warranty
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