Nitto I-Beam Connecting Rods
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Nitto I-Beam Connecting Rods - Nissan RB30 - Commodore (VL) / Skyline (R31)
Nitto's RB30 I-beam rods are built for RB30 engines that go beyond a mid-level build, from turbo street cars to serious drag and circuit engines. They suit the RB30 from the VL Commodore and R31 Skyline in SOHC or DOHC-head form.
Match the pin size to your pistons: 21 mm suits Nitto's standard-stroke RB30 pistons (0.827" pin), while 22 mm suits the stroker pistons (0.866" pin). The 22 mm rod also comes in a wide-journal V1.5 design for wide big-end journal crankshafts.
Nitto I-beams are machined from double-melted 4340 forged billet as a one-piece forging, and have a long record of handling heavy punishment. They use 7/16" ARP 2000 rod bolts and silicon bronze pin bushes.
Note: Installation by a professional is recommended. Engine internals must be measured and set up by a qualified engine builder.
Features
- Double-melted 4340 billet steel, one-piece forging
- X-ray and sonic grade tested, quenched, heat treated and shot peened (38 HRC)
- Doweled cap for accurate cap alignment
- Silicon bronze pin end bushes
- ARP 2000 rod bolts, with ARP Custom Age 625+ available as an upgrade
- Balanced to within ±1 g per set; big and small end bores sized to ±0.0001" on Sunnen honing equipment
Kit Contents
- 6 x Nitto I-beam connecting rods with 7/16" ARP 2000 rod bolts
Warranty
Nitto parts are built for racing and off-road use. Inspect every part during assembly and blueprinting, and contact us before fitting if anything measures outside tolerance. Nitto will repair or replace a faulty part at its discretion, and any modification voids the warranty. Full terms: Nitto limited warranty (PDF).
Pairs Well With
- Nitto Billet Crankshaft - Nissan RB30 - Commodore (VL) / Skyline (R31)
- Nitto Forged Stroker Pistons - Nissan RB30 DOHC - RB25 / RB26 Head Conversion
- Nitto Forged Pistons - Nissan RB30 DOHC - RB25 / RB26 Head Conversion
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Need help choosing parts? Contact our team at sales@chicaneaustralia.com.au.
Vehicle Compatibility
| Make | Model | Chassis | Years | Engine / Notes |
|---|---|---|---|---|
| Holden | Commodore | VL | 1986–1988 | RB30E / RB30ET |
| Nissan | Skyline | R31 | 1986–1990 | RB30E (Australian-built) |
| Nissan | RB30 hybrid | — | — | RB30 block with RB25 / RB26 DOHC head (see Notes) |
Technical Specifications
| Spec | Value |
|---|---|
| Brand | Nitto |
| Product | I-beam connecting rods |
| Engine | Nissan RB30 |
| Material | 4340 billet steel |
| Beam type | I-beam |
| Length | 152.4 mm |
| Pin diameter | NIT-ROD-RB30I21: 21 mm; NIT-ROD-RB30I22: 22 mm; NIT-ROD-RB30I22V15W: 22 mm |
| Big end journal | NIT-ROD-RB30I21 / I22: standard; NIT-ROD-RB30I22V15W: wide journal (V1.5 design) |
| Rod bolts | 7/16" ARP 2000 (Custom Age 625+ optional) |
| Pin bush | Silicon bronze |
| Warranty | Nitto limited warranty (racing use) |
| Instructions | Nitto installation notes (link below) |
| Part number(s) | NIT-ROD-RB30I21, NIT-ROD-RB30I22, NIT-ROD-RB30I22V15W |
Contents
1 x set of 6 Nitto I-beam connecting rods with ARP 2000 rod bolts

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