• ARP Main Bolt Kits | Multiple Chevrolet Fitments (135-5202)
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ARP Main Bolt Kits | Multiple Chevrolet Fitments (135-5202)

ARP Main Bolt Kits | Multiple Chevrolet Fitments (135-5202)

135-5202

Out of stock

$70.36 USD
$77.17 USD $70.36 USD
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The ARP Main Bolt Kit is a high-performance fastener set designed for use in competition engines and professional racing applications. Crafted from forged 8740 chromoly steel, these bolts are rated at 190,000 psi, ensuring exceptional strength and durability under extreme conditions. The kit features rolled threads after heat treatment, which significantly enhances fatigue strength—approximately 2,000 percent better than standard bolts—making them ideal for high-stress engine assembly. The design includes a reduced wrenching head and a large underhead radius, facilitating easier installation and reliable torque retention. These bolts are engineered to meet the rigorous demands of professional engine builders, providing consistent performance and peace of mind during high-performance operation.

Suitable for multiple Chevrolet applications, these ARP Pro Series main bolts are tailored to fit specific engine configurations, ensuring precise compatibility. They serve as direct replacements or upgrades for stock fasteners in engines requiring high-strength, reliable main bolt solutions. The kit is intended for use in street, track, or competition environments where engine integrity is critical. Installation involves standard bolt replacement procedures, and the set includes all necessary bolts for a complete main cap assembly. Designed to withstand the stresses of high horsepower and aggressive tuning, these bolts deliver long-lasting reliability in demanding automotive applications.

Overview

Main Bolt Kit by ARP

ARP Pro Series main bolts are application-specific and rated at 190,000 psi. Designed for use in competition engines, as well as 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: 4-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

Please Note: World Products Merlin II/III iron block only.

Applications

  • 1965 Chevrolet Corvette
  • 1965 – 1972 Chevrolet Chevelle
  • 1967 – 1972 Chevrolet Camaro
  • 1968 – 1970 Chevrolet Nova
  • 1970 – 1972 Chevrolet Monte Carlo, Chevrolet trucks
  • 1965 – 1972 Chevrolet Biscayne, Chevrolet Bel Air, Chevrolet Impala, Chevrolet Impala SS, Chevrolet Caprice
  • 1966 – 1969 Chevrolet Biscayne
  • 1966 – 1969 Chevrolet Caprice
  • 1966 – 1969 Chevrolet Impala
  • 1966 – 1969 Chevrolet Corvette
  • 1968 – 1969 Chevrolet Camaro (most were dealer installed, but in 1969 both the L-72 and the ZL-1 were factory options)
  • 1970 – 1976 Chevrolet Caprice
  • 1970 – 1975 Chevrolet Chevelle
  • 1970 – 1975 Chevrolet Monte Carlo
  • 1970 – 1975 Chevrolet El Camino
  • 1971 – 1972 GMC Sprint
  • 1970 – 1974 Chevrolet Corvette

What's In The Box?

  • 20 - Bolts

Warranty

  • Manufacturers Standard Warranty
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