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ARP 206-5401 Main Cap Fasteners Main Stud Kit - 2-Bolt

(1963-1974 MG Midget; 1960-1962 MG MGA; 1963-1967 Triumph Spitfire; 1965-1967 Triumph TR4A; 1962-1964 Triumph TR4; 1962 Triumph TR3B + 4 more models)

Part of: ARP Main Cap Fasteners Main Stud Kit

Other options in this family: ARP 134-5601 ARP 132-5401 ARP 204-5402 ARP 194-5601 ARP 142-5401

Manufacturer

Picture for manufacturer ARP

Part Number

206-5401
13 reviews
Sale Price

$36.47

2 left at this price

delivery box

Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The ARP 206-5401 main cap fastener kit delivers professional-grade engine reliability by eliminating main cap walk, fretting, and protecting engine block threads. This 2-bolt main stud kit is engineered for demanding performance applications where engine block integrity is critical.

Key Features:

  • Manufactured from 8740 chrome moly steel for superior strength and durability
  • Heat-treated in-house to 200,000 psi tensile strength
  • Precision J-form threads rolled after heat-treat provide 1000% stronger threads than conventional fasteners
  • Hardened parallel-ground washers and high-quality nuts included
  • Generous under-head radius design reduces stress concentrations
  • Rolled threads after heat-treating extends fatigue life significantly

ARP main studs provide superior clamping force and reliability compared to OEM fasteners. The advanced manufacturing process, including post-heat-treat thread rolling, creates fasteners with exceptional fatigue resistance for competition engines and high-performance builds. Each kit includes all necessary hardware for a complete installation.

Products specifications

Fits

1963-1974 MG Midget; 1960-1962 MG MGA; 1963-1967 Triumph Spitfire; 1965-1967 Triumph TR4A; 1962-1964 Triumph TR4; 1962 Triumph TR3B; 1960-1971 Morris Minor; 1964-1966 Austin Mini Cooper; 1960-1966 Austin Mini; 1973-1975 Austin Marina

Fastener Nut Style

Standard hex

Fastener Style

Stud

Fastener Yield Strength (psi)

200,000 psi

Main Bolt Style

2-bolt

Notes

"A" series engine.

Nuts Included

Yes

Quantity

Sold as a kit.

Washers Included

Yes

Works with Windage Tray

No

Easy to use site! Great pricing and free shipping!

Great prices.

Very user friendly.

Easy

Fast service. Perfect replacement part.

Very quick & easy.

best price

Item that i was looking is in stock. Also free shipping. Cant go wrong with that

Lowest price and S&H around! Prompt responses! Will def buy from again!

prices are good. After I paid it took them 5 days to ship the order. Communication is not very good with autoplicity.

Autoplicity gave me prompt notification both when my order was processed and when the order shipped. The price was the best I could find anywhere, and several good reviews made me confident in my choice of stores over other stores who were charging more. Thanks, Autoplicity!

The price was right, and they were very helpful and told me all about the product I ordered, and had it shipped out to me quickly! <br><br>Thanks!

did not contack

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