Brian Crower BC6609 ProH2K H-Beam Connecting Rods for Subaru EJ20/EJ25 Engines

Vehicle Fitment

• Subaru vehicles with EJ20 and EJ25 engines (connecting rod set)
• 2002-2014 Subaru WRX (EJ20/EJ25)
• 2004-2021 Subaru WRX STI (EJ20/EJ25)

Features

• H-beam connecting rod design optimized for strength and rigidity
• ProH2K series with reliable ARP2000 rod bolts included
• Aerospace-grade 4340 chromoly steel construction for performance durability
• CNC-machined and micropolished for consistent tolerances and balance
• Pin bore features aluminum/bronze/silicone bushings for smooth operation
• Finish-honed to exacting specifications for dependable press fit
• Designed to support increased boost, nitrous, and high RPM use
• Rated for reliable performance in modified EJ engines

Specifications

• Part Number: BC6609
• Rod Type: H-beam connecting rods
• Material: 4340 chromoly steel
• Quantity: Set of 4 rods
• Center-to-Center Length: 5.141"
• Big End Bore: 2.166"
• Pin End Bore: 0.905"
• Rod Weight: ~550 g each
• Fasteners: ARP2000 rod bolts included

Included Components

• 4x Brian Crower ProH2K H-Beam Connecting Rods
• 4x ARP2000 rod bolts

Product Description

The Brian Crower BC6609 ProH2K H-Beam Connecting Rod set is a high-performance internal engine component engineered for Subaru engines in the EJ20 and EJ25 series. Built from aerospace-grade 4340 chromoly steel and CNC-machined to exact tolerances, these rods are designed to handle increased power, boost, high RPM, and racing stresses. The H-beam design provides excellent strength and durability, while the included ARP2000 fasteners ensure reliable rod-to-crankshaft clamping in demanding conditions.

Ideal for performance builds and engine rebuilds of WRX and WRX STI platforms from 2002 through 2014 and 2004 through 2021 respectively, the BC6609 rod set offers improved internal reliability over stock rods. Finished with precision honing and equipped with high-quality pin bushing materials, these connecting rods deliver dependable performance for enthusiasts pushing their Subaru powerplants harder, from street performance to competition use.