Description
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.
Product Overview
*Main Studs*
There are many important reasons to use ARP main stud kits, including the elimination of main cap walk and fretting, as well as protecting the threads in your engine block. All kits come complete with hardened parallel-ground washers and high quality nuts. Some applications have provisions for mounting windage trays and have specially designed standoff studs with serrated lock nuts to position the windage tray and lock it securely in place. The studs are manufactured from 8740 chrome moly steel, heat-treated in-house to 200,000 psi tensile strength, and precision J-form threads rolled after heat-treat to create a fastener that has threads 1000% stronger than others.
*Main Bolts*
Far superior to any other main bolt kit offered for use in competition engines, ARP main bolts are designed to meet the exacting standards and demands of professional engine builders. Forged from 8740 chrome moly, all bolts feature generous under-head radius and rolled threads for the utmost reliability. The threads are rolled after heat-treating, which makes them about 1000% longer fatigue life than most main bolts, which are threaded prior to heat-treating. Available in the popular High Performance Series, which, at a nominal rating of 180,000 psi, is a premium replacement for OEM fasteners, or the 200,000 psi nominal rated Pro Series, application-specific main bolts with reduced wrenching head and are designed for use in competition applications. Parallel-ground, hardened washers are included with each kit.
Product Details
| Description: | Crankcase Thru Bolt Kit; 2Bolt Main |
|---|---|
| Part Number: | arp260-5401 |
Part Type
Subaru Crankcase Bolt Kit - EJ20/EJ25
Specifications
- Product Attributes - Brand
- ARP
- Product Attributes - Manufacturer's Part Number
- 260-5401
- Product Attributes - Part Type
- Main Cap Fasteners
- Product Attributes - Product Line
- ARP High Performance Series Main Bolts
- Product Attributes - UPC
- 672036033675
- Product Attributes - Main Bolt Style
- 2-bolt
- Product Attributes - Fastener Style
- Bolt
- Product Attributes - Head Style
- Hex
- Product Attributes - For Use with Stud Girdle
- No
- Product Attributes - Works with Windage Tray
- No
- Product Attributes - Fastener Tensile Strength (psi)
- 180,000 psi
- Product Attributes - Nuts Included
- No
- Product Attributes - Washers Included
- Yes
- Product Attributes - Quantity
- Sold as a kit.
Reference Information
| Brand Name/s | Arp |
|---|---|
| StreetFX SKU | arp260-5401 |
| SFX Item ID | 4366625 |
| Supplier Item Code | 4366625 |
| Manufacturer SKU | 260-5401 |
| Manufacturer UPC | 672036033675 |
| Alternative References | EJ20, EJ25 |
Compatibility
| Application Data |
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