ARP 260-5401 Case Bolt Kit for Subaru EJ20/EJ25
12-Point Case Bolt Kit by ARP®. Far superior to any other main bolts available 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 steel, all ARP main bolts 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 2000% better fatigue strength than most main bolts that are threaded prior to heat-treating. The popular High Performance Series is rated at 180,000 psi, and is a premium replacement for OEM fasteners. Pro Series main bolts are application-specific, rated at 200,000 psi, and designed for use in competition engines. Hardened parallel-ground washers are included with each kit.
12mm 12pt, 10mm 12pt
Fastener Style: Bolt
Package Type: Box
Material: Inconel/Stainless Steel
Head Type: 12 Point
Designed to unlock more performance out of your vehicle
Deliver a reasonable balance of strength and durability
Premium construction built with unmatched quality standards
Ensure smooth, reliable operation and long-lasting service.
Fits Following Engines: EJ20 & EJ25