Overview
Eagle SIR forged I-beam connecting rods are a strong, sensible upgrade for LA small block Chrysler, Dodge, Plymouth and Valiant engine builds using 273ci, 318ci, 340ci or 360ci combinations. Forged from 5140 steel and shot-peened for improved fatigue resistance, these rods are well suited to tough street, cruiser, Pro Street and mild street/strip engines where strength and consistency matter.
Each rod uses a 6.123 inch centre-to-centre length with a bushed small end for floating wrist pins, making them a practical choice for performance piston combinations. The I-beam design provides a good balance of strength and value, while 3/8 inch ARP 8740 cap screws help deliver secure cap clamping under higher engine loads. Supplied as a weight matched set of eight, they are a worthwhile foundation for a fresh small block Mopar rebuild or performance upgrade.
Product Features:
- Suit LA small block Chrysler, Dodge, Plymouth and Valiant 273ci, 318ci, 340ci and 360ci engines
- Forged 5140 steel construction
- Shot-peened for improved fatigue resistance
- 6.123 inch rod length
- Bushed small end for floating wrist pin applications
- Weight matched set of 8
| Manufacturer Specifications | |
|---|---|
| Product Line : | SIR |
| Beam Style: | I Beam |
| Stroker Clearanced : | No |
| Rod Length (in): | 6.123 in |
| Bushed / Press Fit Wrist Pin : | Bushed |
| Small End Bore Diameter (in): | 0.984 in |
| Small End Width (in): | 1.060 in |
| Rod Journal Diameter (in): | 2.125 in |
| Large End Bore Diameter (in): | 2.250 in |
| Large End Width (in): | 0.930 in |
| Fastener Style: | Cap Screw |
| Fastener Manufacturer: | ARP |
| Fastener Product Line: | 8740 |
| Fastener Diameter: | 3/8 in |
| Fastener Head Style: | 12 Point |
| Fastener Alloy: | 8740 |
| Fastener Material: | Chromoly |
| Weight Matched: | Yes |
| Approximate Weight: | 605g |
| Material Processing: | Shot-Peened |
| Forged: | Yes |
| Alloy: | 5140 |
| Material: | Steel |
| Color: | Natural |
| Finish: | Natural |
| Quantity: | Set of 8 |
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Additional Information
| SKU | 33262 |
|---|---|
| Part Type | Conrod Set |
| Section | Crankshaft & Conrods |
| Department | Engine Block & Rotating Assembly |
| Sale Unit | Each |