Introducing a set of high-performance forged connecting rods by JRspec, designed specifically for Volvo group cars with a 1.9L 4-cylinder engine. These rods are crafted using advanced H-beam technology and are made from premium ANSI4340 (EN24) forged steel, providing exceptional strength capable of handling over 200 HP per cylinder.
Each rod undergoes a meticulous manufacturing process, including vacuum degassing and x-ray inspection before processing. They are heat-treated and stress-relieved to ensure maximum durability and performance. The edges are precisely aligned, and each hole is honed twice—before and after fitting—to guarantee a perfect circle with a tolerance of just 0.01 mm. This precision ensures the rods remain perfectly straight, minimizing bearing wear compared to many branded manufacturers with tolerances exceeding 0.1 mm.
Every connecting rod kit is uniquely numbered, packed by weight, and balanced end to end. The heads are reinforced with top-quality bronze sleeves in the rear piston pin position, enhancing their strength and reliability.
These connecting rods have been rigorously tested in a high-powered 1,500 HP Calibra Tsunami, proving their capability in extreme conditions.
Specifications:
- Length: 143mm
- Pin Diameter: 23mm
- Bolts: 3/8"
Vehicle Compatibility
| Brand | Model | Generation / Chassis | Engine |
|---|---|---|---|
| Volvo | S40 | - | 1.9 T4 |
| Volvo | V40 | - | 1.9 T4 |
JR spec
Official page: fmic.eu
Forged Connecting Rods for Volvo V40/S40 1.9 T4
Tags: Default Category|Engine and turbo|Forged rods||Default Category|Engine and turbo,
| Brand | Model | Generation | Engine |
|---|---|---|---|
| Volvo | S40 | - | 1.9 T4 |
| Volvo | V40 | - | 1.9 T4 |
Official page: fmic.eu







