HKS Connecting Rod Set
2013–2020 Subaru BRZ / 2013–2016 Scion FR-S / 2017–2020 Toyota 86 2.1L FA20
23004-AT001
Overview:
The HKS Connecting Rod Set is engineered specifically as a replacement rod kit for the HKS 2.1L FA20 Stroker Kit used in Subaru BRZ, Scion FR-S, and Toyota 86 models from 2013 to 2021. Designed exclusively for use with the pistons included in the 21004-AT002 and 21004-AT003 stroker kits, this rod set is not compatible with other pistons or crankshafts outside of these HKS 2.1L capacity upgrades.
This kit is ideal for enthusiasts upgrading their FA20 engines to the 2.1L stroker configuration who require reliable, high-strength connecting rods that maintain factory block integrity. It offers a cost-effective solution by eliminating the need for additional machining or modifications to the engine block.
Key Features:
The HKS Connecting Rod Set combines precision engineering with durable materials to support the increased stroke and displacement of the 2.1L FA20 stroker upgrade. Key features include:
- Specifically designed to accommodate the longer stroke of the HKS 2.1L stroker crankshaft.
- Special-size crank pins engineered to fit without requiring any block modifications.
- High-strength I-beam rod design for enhanced durability and reliability under increased loads.
- Maintains compatibility with the factory 86mm piston bore to preserve block strength.
- Eliminates the need for boring, honing, or installing sleeves, reducing installation costs and complexity.
- Precision manufacturing ensures optimal fitment and performance within the HKS stroker kit system.
Construction & Design:
HKS utilizes a high-strength I-beam design for the connecting rods, providing an excellent balance of strength and weight. The rods are engineered with special-size crank pins to perfectly match the longer stroke crankshaft, ensuring smooth operation without requiring any modifications to the engine block. This thoughtful design preserves the factory piston bore size of 86mm, maintaining the structural integrity of the engine block and avoiding costly machining processes.
The robust construction of these rods supports the increased displacement and power potential of the 2.1L stroker upgrade, making them a reliable choice for performance enthusiasts seeking durability and precision.
Installation & Fitment:
This connecting rod set is designed as a direct replacement within the HKS 2.1L FA20 stroker upgrade system. It is compatible only with the pistons included in the 21004-AT002 and 21004-AT003 stroker kits and is not suitable for use with other pistons or crankshafts.
No block modifications such as boring, honing, or sleeve installation are required, making the installation process more straightforward and cost-effective. The special crank pin sizing eliminates the need for machining the block, allowing for a clean, bolt-in style upgrade when combined with the appropriate HKS stroker kit components.
- Direct fit for HKS 2.1L FA20 stroker pistons and crankshaft.
- No block modifications or machining required.
- Compatible with 2013–2020 Subaru BRZ, 2013–2016 Scion FR-S, and 2017–2020 Toyota 86 models.
What's Included:
- Complete set of high-strength I-beam connecting rods designed for the HKS 2.1L FA20 stroker kit.
Ideal For:
This connecting rod set is perfect for Subaru BRZ, Scion FR-S, and Toyota 86 owners who are upgrading their engines to the HKS 2.1L stroker configuration. It is especially suited for performance enthusiasts seeking a reliable, cost-effective solution that maintains engine block integrity while supporting increased displacement and power output.
