Tomei Forged H-Beam Rods for 4B11 Mitsubishi Evo X (TA203A-MT02A)
Tomei offers 143.75mm H-Beam connecting rods for the Evo X with 2.0L/2.3L 4B11 engine. These rods are lightweight, highly rigid at the big end, and feature rib-shaped caps. They enhance oil supply to the small end through two ports.
Vehicle Fitment:
2008-2015 Mitsubishi Evolution X
(4B11 Engine)
| Application | 2.0L (STD)/2.3L 4B11 |
| C-to-C (mm): | 143.75 (OEM ±0.0) |
| BE.BORE×WIDTH(mm): | 55.0 x 21.9 |
| PE.BORE×WIDTH(mm) (Bush inner cir): | 23.0 x 20.0 |
| Material: | SNCM439 |
| Bolt: | ARP L19 3/8-24 40.0mm |
| Bearing Size: | INNER DIA. 52.0mm WIDTH 17.0mm |
| Weight (g): | 588.0 |
More Info:
These connecting rods convert the pistons' reciprocating motion into rotary motion at the crankshaft. High strength is crucial to withstand piston pressure. They are torsion-resistant and lightweight, equivalent to I-beam designs. The slant design enhances big-end rigidity, while through-bolts and a smooth shoulder shape boost overall rigidity. Two ribs strengthen the connecting rod caps, preventing bearing failure due to big-end deformation, with additional support from large diameter dowel pins. Improved oil supply prevents seizing, and offset placement increases strength for high-revolution pulling. These rods offer higher fatigue and tensile strength than general ARP2000, ensuring a firmer big-end joint.
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